Lexicon MPX G2 User Manual

MPX G2

Guitar Effects Processor

User Guide

Unpacking and Inspection

After unpacking the unit, save all packing materials in case you ever need to ship the unit. Thoroughly inspect the unit and packing materials for signs of damage. Report any shipment damage to the carrier at once; report equipment malfunction to your dealer.

Precautions

Save these instructions for later use. Follow all instructions and warnings marked on the unit. Always use with the correct line voltage. Refer to the manufacturer's operating instructions for power requirements. Be advised that different

operating voltages may require the use of a different line cord and/or attachment plug. Do not install the unit in an unventilated rack, or directly above heat producing equipment such as power amplifiers. Observe the maximum

ambient operating temperature listed in the product specification. Slots and openings on the case are provided for ventilation; to ensure reliable operation and prevent it from overheating, these openings must

not be blocked or covered. Never push objects of any kind through any of the ventilation slots. Never spill a liquid of any kind on the unit. This product is equipped with a 3-wire grounding type plug. This is a safety feature and should not be defeated. Never attach audio power amplifier outputs directly to any of the unit's connectors. To prevent shock or fire hazard, do not expose the unit to rain or moisture, or operate it where it will be exposed to water. Do not attempt to operate the unit if it has been dropped, damaged, exposed to liquids, or if it exhibits a distinct change in performance indicating

the need for service. This unit should only be opened by qualified service personnel. Removing covers will expose you to hazardous voltages.

This triangle, which appears on your component, alerts you to the presence of uninsulated, dangerous voltage inside the enclosure... voltage that may be sufficient to constitute a risk of shock.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This triangle, which appears on your component, alerts you to important operating and maintenance instructions in this accompanying literature.

Notice

This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instructions, may cause interference to radio and television reception. It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules, which are designated to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment OFF and ON, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient the receiving antenna Relocate the computer with respect to the receiver Move the computer away from the receiver Plug the computer into a different outlet so that the computer and receiver are on different branch circuits.

If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet prepared by the Federal Communications Commission helpful:

"How to identify and Resolve Radio/TV Interference Problems."

This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4.

Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class B prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.

Boss CS-3, Cordovox, Crybaby, DynaComp, Leslie, Maestro, Mu-tron, Octavia, Phase 90, Space Echo, Tube Screamer, Univibe,Vibro Tone and Vox are trademarked by their respective manuafacturers. JamMan is a trademark of Lexicon, Inc

Lexicon Inc. • 3 Oak Park • Bedford MA 01730-1441 USA • Telephone 781-280-0300 • Fax 781-280-0490

Lexicon Part # 070-11542

Dansk

Vigtig information om sikkerhed

Gem denne vejledning til senere brug. Følg alle anvisninger og advarsler på apparatet. Apparatet skal altid tilsluttes den korrekte spænding. Der henvises til

brugsanvisningen, der indeholder specifikationer for strømforsyning. Der gøres opmærksom på, at ved varierende driftsspændinger kan det blive nødvendigt at bruge andre lednings- og/eller stiktyper.

Apparatet må ikke monteres i et kabinet uden ventilation eller lige over andet udstyr, der udvikler varme, f.eks. forstærkere. Den maksimale omgivelsestemperatur ved drift, der står opført i specifikationerne, skal overholdes.

Der er ventilationsåbninger i kabinettet. For at sikre apparatets drift og hindre overophedning må disse åbninger ikke blokeres eller tildækkes. Stik aldrig noget ind igennem ventilationsåbningerne, og pas på aldrig at spilde nogen form for væske på apparatet.

Dette apparat er forsynet med et stik med jordforbindelse. Denne sikkerhedsforanstaltning må aldrig omgås.

Udgangsstik fra audioforstærkere må aldrig sættes direkte i apparatet. Apparatet må ikke udsættes for regn eller fugt og må ikke bruges i

nærheden af vand for at undgå risiko for elektrisk stød og brand. Apparatet må aldrig bruges, hvis det er blevet stødt, beskadiget eller vådt,

eller hvis ændringer i ydelsen tyder på, at det trænger til eftersyn. Dette apparat må kun åbnes af fagfolk. Hvis dækslet tages af, udsættes

man for livsfarlig højspænding.

Denne mærkat på komponenten advarer om uisoleret, farlig spænding i apparatet ... høj nok til at give elektrisk stød.

Denne mærkat på komponenten advarer om vigtig drifts- og vedligeholdsinformation i den tilhørende litteratur.

Suomi

Tärkeitä turvallisuusohjeita

Säilytä nämä ohjeet tulevaa käyttöä varten. Seuraa kaikkia yksikköön merkittyjä ohjeita ja varoituksia. Käytä aina oikeaa verkkojännitettä. Tehovaatimukset selviävät valmistajan

käyttöohjeista. Huomaa, että eri käyttöjännitteet saattavat vaatia toisenlaisen verkkojohdon ja/tai -pistokkeen käytön.

Älä asenna yksikköä telineeseen jossa ei ole tuuletusta, tai välittömästi lämpöä tuottavien laitteiden, esim. tehovahvistimien, yläpuolelle. Ympäristön lämpötila käytössä ei saa ylittää tuotespesifikaation maksimilämpötilaa.

Kotelo on varustettu tuuletusreiillä ja -aukoilla. Luotettavan toiminnan varmistamiseksi ja ylilämpenemisen välttämiseksi näitä aukkoja ei saa sulkea tai peittää. Mitään esineitä ei saa työntää tuuletusaukkoihin. Mitään nesteitä ei saa kaataa yksikköön.

Tuote on varustettu 3-johtimisella maadoitetulla verkkopistokkeella. Tämä on turvallisuustoiminne eikä sitä saa poistaa.

Älä kytke audiotehovahvistimen lähtöjä suoraan mihinkään yksikön liittimeen.

Sähköiskun ja palovaaran välttämiseksi yksikkö ei saa olla sateessa tai kosteassa, eikä sitä saa käyttää märässä ympäristössä.

Älä käytä yksikköä jos se on pudonnut, vaurioitunut, kostunut, tai jos sen suorituskyky on huomattavasti muuttunut, mikä vaatii huoltoa.

Yksikön saa avata vain laitteeseen perehtynyt huoltohenkilö. Kansien poisto altistaa sinut vaarallisille jännitteille.

Tämä kolmio, joka esiintyy komponentissasi, varoittaa sinua eristämättömän vaarallisen jännitteen esiintymisestä yksikön sisällä. Tämä jännite saattaa olla riittävän korkea aiheuttamaan sähköiskuvaaran.

Tämä kolmio, joka esiintyy komponentissasi, kertoo sinulle, että tässä tuotedokumentoinnissa esiintyy tärkeitä käyttö- ja ylläpitoohjeita.

Norsk

Viktig informasjon om sikkerhet

Ta vare på denne veiledningen for senere bruk. Følg alle anvisningene og advarslene som er angitt på apparatet. Apparatet skal alltid anvendes med korrekt spenning. Produktbeskrivelsen

inneholder spesifikasjoner for strømkrav. Vær oppmerksom på at det ved ulike driftsspenninger kan være nødvendig å bruke en annen ledning- og/ eller støpseltype.

Apparatet skal ikke monteres i skap uten ventilasjon, eller direkte over varmeproduserende utstyr, som for eksempel kraftforsterkere. Den maksimale romtemperaturen som står oppgitt i produktbeskrivelsen, skal overholdes.

Apparatet er utstyrt med ventilasjonsåpninger. For at apparatet skal være pålitelig i bruk og ikke overopphetes, må disse åpningene ikke blokkeres eller tildekkes. Stikk aldri noe inn i ventilasjonsåpningene, og pass på at det aldri søles noen form for væske på apparatet.

Dette apparatet er utstyrt med et jordet støpsel. Dette er en sikkerhetsforanstaltning som ikke må forandres.

Utgangsplugger fra audioforsterkere skal aldri koples direkte til apparatet. Unngå brannfare og elektrisk støt ved å sørge for at apparatet ikke utsettes

for regn eller fuktighet og ikke anvendes i nærheten av vann. Apparatet skal ikke brukes hvis det har blitt utsatt for støt, er skadet eller blitt

vått, eller hvis endringer i ytelsen tyder på at det trenger service. Dette apparatet skal kun åpnes av fagfolk. Hvis dekselet fjernes, utsettes

man for livsfarlig høyspenning.

Komponenten er merket med denne trekanten, som er en advarsel om at det finnes uisolert, farlig spenning inne i kabinettet ... høy nok til å utgjøre en fare for elektrisk støt.

Komponenten er merket med denne trekanten, som betyr at den tilhørende litteraturen inneholder viktige opplysninger om drift og vedlikehold.

Svenska

Viktiga säkerhetsföreskrifter

Spara dessa föreskrifter för framtida bruk. Följ alla anvisningar och varningar som anges på enheten. Använd alltid rätt nätspänning. Se tillverkarens bruksanvisningar för infor-

mation om effektkrav. Märkväl, att andra matningsspänningar eventuellt kräver att en annan typs nätsladd och/eller kontakt används.

Installera inte enheten i ett oventilerat stativ, eller direkt ovanför utrustningar som avger värme, t ex effektförstärkare. Se till att omgivningens temperatur vid drift inte överskrider det angivna värdet i produktspecifikationen.

Behållaren är försedd med hål och öppningar för ventilering. För att garantera tillförlitlig funktion och förhindra överhettning får dessa öppningar inte blockeras eller täckas. Inga föremål får skuffas in genom ventilationshålen. Inga vätskor får spillas på enheten.

Produkten är försedd med en jordad 3-trådskontakt. Detta är en säkerhetsfunktion som inte får tas ur bruk.

Anslut aldrig audioeffektförstärkarutgångar direkt till någon av enhetens kontakter.

För att undvika elstöt eller brandfara får enheten inte utsättas för regn eller fukt, eller användas på ställen där den blir våt.

Använd inte enheten om den har fallit i golvet, skadats, blivit våt, eller om dess prestanda förändrats märkbart, vilket kräver service.

Enheten får öppnas endast av behörig servicepersonal. Farliga spänningar blir tillgängliga när locken tas bort.

Denna triangel, som visas på din komponent, varnar dig om en oisolerad farlig spänning inne i enheten. Denna spänning är eventuellt så hög att fara för elstöt föreligger.

Denna triangel, som visas på din komponent, anger att viktiga bruksanvisningar och serviceanvisningar ingår i dokumentationen i fråga.

Wichtige Sicherheitsanweisungen

Deutsch

Heben Sie sich diese Sicherheitsanweisungen auch für später auf. Befolgen Sie alle auf der Vorrichtung stehenden Anweisungen und Warnungen. Immer nur mit der richtigen Spannung verwenden! Die Gebrauchsanweisungen

des Herstellers informieren Sie über die elektrischen Anforderungen. Vergessen Sie nicht daß bei verschiedenen Betriebsspannungen ggf. auch verschiedene Leitungskabel und/oder Verbindungsstecker zu verwenden sind.

Stellen Sie die Vorrichtung nicht in ein unbelüftetes Gestell oder unmittelbar über wärmeerzeugende Geräte wie z.B. Tonverstärker. Halten Sie die in den Produktspezifikationen angegebene maximale Umgebungstemperatur bei Betrieb ein.

Schlitze und Öffnungen im Gehäuse dienen der Belüfung; um verläßlichen Betrieb sicherzustellen und Überheizen zu vermeiden dürfen diese Öffnungen nich verstopft oder abgedeckt werden. Stecken Sie nie irgend einen Gegenstand durch die Belüftungsschlitze. Vergießen Sie keine Flüssigkeiten auf den Apparat.

Dieses Produkt is mit einem 3-drahtigen Erdungsstecker ausgerüstet. Diese Sicherheitsmaßnahme darf nicht unwirksam gemacht werden.

Schließen Sie nie Tonverstärker unmittelbar an einen Anschluß des Apparates an.

Um elektrischen Schlag oder Feuer zu vermeiden, setzen Sie den Apparat weder Regen noch Feuchtigkeit aus und betreiben Sie ihn nicht dort wo Wasser eindringen könnte.

Versuchen Sie nicht den Apparat zu betreiben falls er fallen gelassen, beschädigt, oder Flüssigkeiten ausgesetzt wurde, oder falls sich seine Arbeitsweise derart ändert daß daraus ein Bedarf nach Raparatur zu schließen ist.

Dieser Apparat sollte nur von qualifizierten Fachleuten geöffnet werden. Das Abnehmen von Abdeckungen setzt Sie gefährlichen Spannungen aus.

Dieses Dreieck auf Ihrem Apparat warnt Sie vor nicht-isolierter, gefährlicher Spannung im Gehäuse ... stark genug um eine Berührungsgefahr darzustellen.

Dieses Dreieck auf Ihrem Apparat bedeutet daß wichtige Betriebsund Wartungsanweisungen in der mitgelieferten Dokumentation zu finden sind.

Instrucciones importantes de seguridad

Español

Guarde esta instrucciones para uso posterior. Utilice siempre el voltaje correcto. Diríjase a las instrucciones de operación

del fabricante para obtener las especificaciones de potencia. Esté al tanto de que voltajes de operación distintos requieren el uso de cables y/o enchufes distintos.

No instale esta unidad en un estante sin ventilación, ni tampoco directamente encima de equipos que generen calor tales como amplificadores de potencia. Fíjese en las temperaturas ambientales máximas de operación que se mencionan en las especificaciones del producto.

Las aperturas y ranuras del chasis sirven para proveer la ventilación necesaria para operar la unidad con seguridad y para prevenir sobrecalentamiento, y por lo tanto no pueden ser obstruidas o cubiertas. No introduzca objetos de ningún tipo a través de las ranuras de ventilación, y nunca deje caer ningún líquido sobre la unidad.

Este producto está equipado con un enchufe de 3 clavijas con conexión a tierra. Éste es un elemento de seguridad que no debe ser eliminado.

Nunca conecte ningún tipo de salida de amplificadores de sonido directamente a los conectores de la unidad.

Para prevenir descargas eléctricas o incendios, mantenga la unidad alejada de la lluvia, humedad o cualquier lugar en el que pueda entrar en contacto con agua.

No trate de hacer funcionar la unidad si se ha caído, está dañada, ha entrado en contacto con líquidos, o si nota cualquier cambio brusco en su funcionamiento que indique la necesidad de hacerle un servicio de mantenimiento.

Esta unidad deberá ser abierta únicamente por personal calificado. Si usted quita las coberturas se expondrá a voltajes peligrosos.

Este triángulo que aparece en su componente le advierte sobre la existencia dentro del chasis de voltajes peligrosos sin aislantes ... voltajes que son lo suficientemente grandes como para causar electrocución.

Este triángulo que aparece en su componente lo alerta sobre las instrucciones de operación y mantenimiento importantes que están en los materiales de lectura que se incluyen.

Instructions de Sûreté Importantes

Français

Gardez ces instructions pour réference future. Observez toutes les instructions et tous les avertissements marqués sur

l’appareil. Branchez uniquements sur un réseau de tension indiquée. Consultez le

manuel d’instruction du fabriquant pour les spécifications de courant. N’oubliez pas que différentes tensions peuvent nécessiter l’utilisation de cables et/ou de fiches de connexion différents.

N’installez pas l’appareil en un compartiment non-aéré ou directement audessus d’équipements générateurs de chaleur, tels qu’amplificateurs de courants, etc. Ne dépassez pas la température ambiante maximale de fonctionnement indiquée dans les spécifications du produit.

Des fentes et ouvertures sont prévues dans le boîtier pour l’aération; Pour assurer le bon fonctionnement et pour prévenir l’échauffement, ces ouvertures ne doivent pas être couvertes ou bloquées. N’insérez pas d’objets dans les fentes d’aération. Empêchez tout liquide de se répandre sur l’appareil.

Ce produit est muni d’une fiche à trois fils pour la mise à terre. Ceci est une mesure de sécurité et ne doit pas être contrariée.

Ne connectez jamais d’amplificateurs audio directement aux connecteurs de l’appareil.

Pour empêcher les chocs électriques et le danger d’incendie, évitez d’exposer l’appareil à la pluie ou à l’humidité, et ne le mettez pas en marche en un endroit où il serait exposé aux éclaboussures d’eau.

N’essayez pas de faire fonctionner l’appareil s’il est tombé à terre, a été endommangé, exposé à un liquide, ou si vous observez des différences nettes dans son fonctionnement, indiquant la nécessité de réparations.

Cet appareil ne doit être ouvert que par un personnel de service qualifié. En enlevant les couvercles vous vous exposez à des tensions électriques dangereuses.

Ce triangle, sur votre appareil vous avertit de la présence de tension dangereuse, non-isolée à l’intérieur du boîtier...une tension suffisante pour représenter un danger d’électrocution.

Ce triangle sur sur votre appareil vous invite de suivre d’importantes instructions d’utilisation et d’entretien dans la documentation livrée avec le produit.

Importanti norme di sicurezza

Italiano

Conservare le presenti norme per l’utilizzo futuro. Osservare tutte le istruzioni e le avvertenze apposte sull’unità. Utilizzare esclusivamente con la tensione di rete corretta. Consultare le

istruzioni operative fornite dal fabbricante per i dati riguardanti la tensione e l’assorbimento di corrente. Potrebbe essere necessario l’uso di cavi di rete e/o di spine diverse a seconda della tensione utilizzata.

Non installare l’unità in uno scaffale privo di ventilazione oppure direttamente sopra una fonte di calore, come, ad esempio, un amplificatore. Non superare la temperatura ambientale massima di funzionamento riportata nei dati tecnici del prodotto.

Le fessure e le altre aperture nella scatola servono alla ventilazione. Per un funzionamento affidabile, e per evitare un eventuale surriscaldamento, queste aperture non vanno ostruite o coperte in nessun modo. Evitare in tutti i casi di inserire oggetti di qualsiasi genere attraverso le fessure di ventilazione. Non versare mai del liquido di nessun tipo sull’unità.

Questo prodotto viene fornito con una spina a 3 fili con massa. Tale dispositivo di sicurezza non va eliminato.

Evitare sempre di collegare le uscite dell’amplificatore audio direttamente ai connettori dell’unità.

Per prevenire il pericolo di folgorazione e di incendio non esporre l’unità alla pioggia o ad un’umidità eccessiva; evitare di adoperare l’unità dove potrebbe entrare in contatto con acqua.

Evitare di adoperare l’unità se la stessa è stata urtata violentemente, se ha subito un danno, se è stata esposta ad un liquido o in caso di un evidente cambiamento delle prestazioni che indichi la necessità di un intervento di assistenza tecnica.

Ogni intervento sull’unità va eseguito esclusivamente da personale qualificato. La rimozione della copertura comporta l’esposizione al pericolo di folgorazione.

Il presente triangolo impresso sul componente avverte della presenza di tensioni pericolose non isolate all’interno della copertura... tali tensioni rappresentano un pericolo di folgorazione

Il presente triangolo impresso sul componente avverte l’utente della presenza nella documentazione allegata di importanti istruzioni relative al funzionamento ed alla manutenzione.

Introduction

1. Product Overview

The Front Panel .................................................................................. 1-1

The Rear Panel................................................................................... 1-2

Installation Notes ................................................................................ 1-3

Mounting ...................................................................................... 1-3

Power Requirements.................................................................... 1-3

Quick Start .......................................................................................... 1-3

Stand alone .................................................................................. 1-4

Amp Input Only ............................................................................ 1-5

Amp Input & FX Loop ................................................................... 1-6

Connecting Other Equipment ............................................................. 1-8

Signal Flow ....................................................................................... 1-10

Digital Audio Paths ........................................................................... 1-11

Internal Grounding ............................................................................ 1-11

Unbalanced Connections.................................................................. 1-11

Guitar Input ....................................................................................... 1-11

Main Outputs .................................................................................... 1-11

Insert Send ....................................................................................... 1-12

Insert Returns ................................................................................... 1-12

Automatic Insert Return Signal Routing............................................ 1-12

Right (Mono) Only ..................................................................... 1-12

Stereo......................................................................................... 1-12

Left Only ..................................................................................... 1-12

Connecting the main Outputs to Mono Input .................................... 1-13

Setting Audio Levels ......................................................................... 1-13

Using Soft Sat................................................................................... 1-13

Input Level and Clip Indicators ......................................................... 1-13

Aux In and Clip Indicators ................................................................. 1-13

Contents

Look here for connector information and Quick Start configurations

2. Basic Operation

MPX G2 Menus .................................................................................. 2-1

Loading and Playing with Programs ................................................... 2-2

Program Load .............................................................................. 2-2

Effect Bypass ............................................................................... 2-3

Insert Bypass ............................................................................... 2-3

Dedicated Analog Controllers ...................................................... 2-3

Programmable Bypass Modes ..................................................... 2-4

Tuner ............................................................................................ 2-4

Tap ............................................................................................... 2-4

A/B ............................................................................................... 2-5

Soft Row Editing ................................................................................. 2-5

Using the DataBase............................................................................ 2-6

Program Store .................................................................................... 2-7

Easy operation of the MPX G2 — loading, playing with, and storing programs.

Contents, cont'd.

Check here for information

on editing Effects and

programs.

3. Editing

Effect Editing ...................................................................................... 3-1

The MPX G2 Edit Menus .................................................................... 3-3

Mix ............................................................................................... 3-4

Adjusting Pre-Gain and Post-Gain Level ............................... 3-4

Speaker Sim................................................................................. 3-5

Automatic Speaker Sim Routing............................................ 3-6

Noise Gate ................................................................................... 3-7

Meters .......................................................................................... 3-8

Effect Order.................................................................................. 3-9

Routing Map............................................................................... 3-10

How to Change Routing Connections.................................. 3-12

How to Change Routing Options ......................................... 3-12

Routing Examples................................................................ 3-13

Notes and Tips on Routing .................................................. 3-16

Patching (See Chapter 4)........................................................... 3-16

Controllers (Knob, LFO 1 and 2, Random, A/B and Env ) ......... 3-17

Tempo ........................................................................................ 3-18

Rate ..................................................................................... 3-18

Source ................................................................................. 3-18

Beat Value ........................................................................... 3-19

Tap Source .......................................................................... 3-19

Compare .................................................................................... 3-19

Soft Row Parameter Assignment ............................................... 3-20

DataBase Assignmments ........................................................... 3-20

Copy Effect................................................................................. 3-22

All about the MPX G2

Patch System

Complete details on all

of the MPX G2 System

parameters

4. Patching

Selecting a Source and Destination.................................................... 4-2

Changing the Range of the Source Controller .................................... 4-3

Viewing Source Controller Activity ............................................... 4-3

MIDI Learn — Automatic Controller Assignment ......................... 4-4

Copying Patches ................................................................................ 4-4

Changing the Range of the Destination Parameter ............................ 4-5

Linear or Nonlinear Control .......................................................... 4-6

Suspending and Clearing Patches ..................................................... 4-7

Multiple Patches with the Same Destination....................................... 4-7

5. System Controls

The System Menus............................................................................. 5-1

Audio Controls .................................................................................... 5-1

Soft Sat ........................................................................................ 5-1

Output Mode ................................................................................ 5-1

Modes ............................................................................................... 5-2

Pgm Load..................................................................................... 5-2

Mix ............................................................................................... 5-2

Send Bypass ................................................................................ 5-2

Pgm Bypass ................................................................................. 5-2

Tempo Mode ................................................................................ 5-3

Memory Protect............................................................................ 5-3

Brightness .................................................................................... 5-3

Sleep ............................................................................................ 5-3

Post Bypass ................................................................................. 5-4

Insert ............................................................................................ 5-4

FX Loop ................................................................................. 5-4

Mix ......................................................................................... 5-4

Parallel................................................................................... 5-4

Setup Load and Setup Store ........................................................ 5-5

MIDI ............................................................................................... 5-7

Program Change/Options: Pgm# Offset, Pgm+ and Pgm- .......... 5-7

Receive ........................................................................................ 5-7

Transmit ....................................................................................... 5-7

Ctl Send/Options: MIDI Reset ...................................................... 5-8

Ctl Smooth ................................................................................... 5-8

Clock Send................................................................................... 5-8

Automation/Options: Xmit Device ID ............................................ 5-9

SysEx/Options: Receive Device ID .............................................. 5-8

Soft Thru ...................................................................................... 5-9

Dump/Options: Xmit Speed.......................................................... 5-9

MIDI Maps ........................................................................................ 5-10

Program Chains................................................................................ 5-11

Initialize............................................................................................. 5-12

Clear Programs................................................................................. 5-13

Copy Programs................................................................................. 5-14

Global Patches/Options: MIDI Learn and Dst Edit............................ 5-15

Calibrate Pedal ................................................................................. 5-16

Bypass Patches ................................................................................ 5-16

Tuner Mode ...................................................................................... 5-17

Global Effects ................................................................................... 5-17

Speaker Sim Mode..................................................................... 5-18

Noise Gate Mode ....................................................................... 5-18

Reverb Mode.............................................................................. 5-18

Bypass Mode ............................................................................. 5-18

Contents, cont'd.

6. MIDI Operation

Selecting a MIDI Channel ................................................................... 6-1

Accessing Programs........................................................................... 6-1

Controlling MPX G2 Tempo Rate with MIDI Clock ............................. 6-2

MIDI Tempo Control ..................................................................... 6-2

Using the MPX G2 as a MIDI Clock Source................................. 6-2

Slaving two or more MPX G2s ..................................................... 6-3

Controller Quirks................................................................................. 6-4

The Knob, Footpedal and Footswitch as MIDI Controllers ................. 6-4

Program Change Messages ............................................................... 6-5

Automation ......................................................................................... 6-6

SysEx Automation........................................................................ 6-6

Controller Automation .................................................................. 6-6

Reset All Controllers .................................................................... 6-6

MIDI Clock and Clock Commands ............................................... 6-6

Dynamic MIDI............................................................................... 6-7

Bulk Data Dumps................................................................................ 6-7

MIDI Implementation Chart................................................................. 6-8

Information on working with MIDI

Contents, cont'd.

Complete details on all

of the MPX G2 Effects

7. The Effects and Parameters

Notes on Combining Effects ............................................................... 7-2

Notes on Controlling Effect Parameters ............................................. 7-2

Notes on the Effect Descriptions ........................................................ 7-2

Gain Effects ........................................................................................ 7-3

Tone ............................................................................................. 7-3

Crunch.......................................................................................... 7-3

Screamer...................................................................................... 7-4

Overdrive...................................................................................... 7-5

Distortion ...................................................................................... 7-6

Preamp and SplitPreamp ............................................................. 7-6

Effect1 and Effect2 ............................................................................. 7-8

Detune (M), Detune (S) and Detune (D) – Effect1 only................ 7-8

Shift (M), Shift (S) and Shift (D) – Effect1 only............................. 7-9

DiatonicHmy – Effect1 only ........................................................ 7-10

Panner........................................................................................ 7-11

Auto Pan .................................................................................... 7-11

Tremolo (M) and Tremolo (S)..................................................... 7-12

UniVybe...................................................................................... 7-12

CustomVybe............................................................................... 7-13

Phaser........................................................................................ 7-13

OrangePhase ............................................................................. 7-14

Red Comp .................................................................................. 7-14

Blue Comp ................................................................................. 7-15

DigiDrive1 and DigiDrive2 .......................................................... 7-15

OctaBuzz.................................................................................... 7-16

SweepFilter ................................................................................ 7-17

1-Band (M) ................................................................................. 7-17

Wah 1, Wah 2 and PedalWah1, PedalWah2 ............................. 7-18

Volume (M), Volume (S) and Volume (D) .................................. 7-19

PedalVol and ExtPedalVol ......................................................... 7-19

Test Tone ................................................................................... 7-20

Click ........................................................................................... 7-20

Chorus Effects .................................................................................. 7-21

Chorus........................................................................................ 7-21

Detune (M) ................................................................................. 7-22

Flanger (M), Flanger24 (M) and Flanger (S) .............................. 7-23

Rotary Cab ................................................................................. 7-24

Aerosol ....................................................................................... 7-24

Orbits.......................................................................................... 7-25

Centrifuge1 and Centrifuge2 ...................................................... 7-26

Comb 1 and Comb 2 .................................................................. 7-27

Volume (M), Volume (S) and Volume (D) .................................. 7-28

PedalVol and ExtPedalVol ......................................................... 7-28

Delay Effects .................................................................................... 7-29

Delay (M), Delay (S) and Delay (D) ........................................... 7-30

Echo (M), Echo (S) and Echo (D) .............................................. 7-31

Looper ........................................................................................ 7-32

JamMan ..................................................................................... 7-33

Ducker........................................................................................ 7-34

Reverb Effects .................................................................................. 7-35

Chamber .................................................................................... 7-35

Hall ............................................................................................. 7-35

Plate ........................................................................................... 7-36

Ambience ................................................................................... 7-36

Gate ........................................................................................... 7-37

EQ Effects ........................................................................................ 7-38

1-Band (M), 2-Band (M), 3-Band (M) and 4-Band (M) ............... 7-40

1-Band (S) and 2-Band (S) ........................................................ 7-40

1-Band (D) and 2-Band (D) ........................................................ 7-41

Fc Splitter ................................................................................... 7-41

Crossover ................................................................................... 7-42

Volume (M), Volume (S) and Volume (D)................................... 7-42

PedalVol and ExtPedalVol ......................................................... 7-43

8. MPX G2 Internal Controllers

Knob ............................................................................................... 8-1

LFO1 and LFO2.................................................................................. 8-1

Random Generator ............................................................................. 8-2

A/B Glide ............................................................................................ 8-2

Env ............................................................................................... 8-3

Footswitch Controllers ........................................................................ 8-3

9. Program Descriptions

1-99: Amp Input + FX Loop ................................................................ 9-1

100-149: Amp Input Only .................................................................. 9-15

150-248: Stand Alone ....................................................................... 9-20

249-250: Utility (All configurations: Unity Gain and Clean Slate) ...... 9-30

Contents, cont'd.

Complete descriptions of the MPX G2 Internal controllers

Complete descriptions of the MPX G2 programs

10. Troubleshooting

Low Voltage ...................................................................................... 10-1

Overheating ...................................................................................... 10-1

Common MIDI Problems .................................................................. 10-1

Power On Behavior........................................................................... 10-2

11. Specifications

Check here for solutions to common problems

Foreword

When we started development on the MPX G2 Guitar Effects Processor and the MPX R1 MIDI Remote Controller, we knew we were designing for the most discriminitating guitarists — players whose tonal foundation is based on this nocompromise equation:

great guitar + great amp = great tone

Our challenge was to put together a guitar effects system that could mesh with your favorite gear and not get in the way of your signature sound. Since we had no intention of trying to duplicate the “great amp” portion of the equation inside of our effects processor, we needed to make the MPX G2 capable of putting effects in two places at the same time — between the guitar and your amp (like stomp boxes) or in your amp’s effects loop (like rack effects). Add to that the challenge of getting the sounds right, and combining analog and digital effects in a roadworthy package, and you’re definitely into something totally new.

So, here it is. A lot of people have put a lot of sweat into this box so you could do what you do best — so get out there and play.

Throughout the development process of our Custom Shop products, we’ve had the help of a team of artist advisors. Time and again their input had a major impact on both the MPX G2 Guitar Effects Processor and MPX R1 MIDI Remote Controller. Some were with us at the beginning, when these products were just concepts on paper, others joined us as various prototypes came roaring to life.

Jon Finn, Dave Friedman of Rack Systems Ltd., Michael James, Eddie Kramer, Peter McCabe of Tone King Studio, John McIntyre, Bobby Owsinski, John Petrucci, Blues Saraceno, Alex Saraceno, David Torn and Carl Verheyen — each made significant contributions, including:

putting their reputations on the line by working with experimental gear in front of large paying audiences — or in critical sessions with the clock ticking, so that we could evaluate under real-world conditions.

sharing secrets, tips and tricks — “How did you get that sound on (insert hit tune from platinum record)?”

spending hours and hours of critical listening time to help us evaluate our work as it progressed, and letting us know when we had to go back to the drawing board.

Thanks to each of you for applying your consummate skills to this project. Your faith, encouragement, enthusiasm and patience helped us get it right.

Thank you for your purchase of the MPX G2 Guitar Effects Processor. The MPX G2 works with any amp, from combo to stack, allowing you to place authentic effects anywhere in the signal chain without altering the amps basic tone. Two separate signal paths allow you to place effects where you want them. For example compression, wah and analog overdrive can be placed in front of the amp, while other effects, like delay chorus and reverb might be placed in the amps effect loop.

Dynamic Gain™, Lexicon’s new analog distortion technology provides screaming overdrive and warm distortion tones which can be used as an analog stomp box in front of your amp or as a stand alone preamp for direct recording or live performance.

Seven primary effect types: Gain, Effect 1, Effect 2, Chorus, Delay, EQ and, Reverb give you push button access to 76 effects, including extraordinary recreations of classics like the Uni-Vibe®, Dyna-Comp®, Phase 90®, Vox® and Cry Baby® wah, intelligent pitch shift, a JamMan™ style looper with 20-second full bandwidth delays, Chorus, Flanger, Sweepfilter, Detuner, Rotary Speaker, Parametric EQ and Tremolo.

The preset library is organized under database control to allow you to quickly find programs designed for specific styles such as Rock, or Blues, to find all of the programs using certain effects such as Overdrive, or to find only programs suitable for Stand Alone operation.

Visual feedback is available every step of the way when you're using the MPX G2, with lighted buttons indicating the state of the unit and alerting you to extra features available from the front panel. A large numeric display shows program (and patch) numbers. A second alphanumeric display shows you program and parameter names and settings.

Like all Lexicon processors, the MPX G2 gives you as much depth of control as you're ever likely to want, while keeping the details out of your way. Surface control of the MPX G2 is straightforward and intuitive, with the most useful parameters of every program available from a dedicated Soft Row button on the front panel.

The MPX G2 gives you tap tempo control when you want it. You can assign tempo control to modulation rates, delay times or any effect parameter, ensuring that your effects are in tempo with your music. Tempos can be tapped in with the front panel Tap button (or an assigned controller) or “dialed-in”, in BPM (beats per minute) on the display. The MPX G2 also lets you generate MIDI clock from your tempo, as well as receive MIDI tempo from an external sequencer or drum machine. Many presets have delay times assigned to Tap tempo. When you load a tempo driven program, the front panel Tempo LED will flash at the current tempo to let you know the Tap button is active. Press Tap twice in rhythm to change tempo.

Introduction

Effect buttons light to show you which are active in any program. Push any lighted effect button to instantly bypass the effect. Press it again to turn the effect back on.

Database Sorting Options

Sort selections by: name number Guitar Style:

Bass Blues Clean Country Jazz Rock

Effect type:

Chorus Delay Distortion EQ Flanger Gain Mod Overdrive Phaser Pitch Reverb SpkrSim Wah All

App type:

StndAlne Amp In

FX Loop members of MIDI maps members of pgm chains last 10 programs loaded

The Tempo light will flash in tempo whenever the Tap button is active. Press Tap twice in rhythm to match the tempo of effects to your music.

The A or B LED will light whenever a program with A/B Glide is loaded. Press A/B to activate a parameter glide whenever these lights are lit.

Many features

are brought out under

the Options button – which will light whenever options are available.

An A/B glide function is also available from the front panel — and of course we've designed presets to show this function off to its fullest. Whenever the A or B LED is lit, press the A/B button to activate the glide.

When you want to create your own versions, you'll find A/B available as an internal controller in Edit mode along with two LFOs, an Envelope, and more.

Complete editing control is provided under the Edit button, where you can customize presets or make new ones from scratch, design your own soft row parameters, copy effects into new programs, and put effects in any sequence or routing configuration you want. Easy access to all of the parameters of any effect is just a button push away.

All of the front panel functions (Tap, A/B, Effect selection, etc.) can easily be connected to MIDI controllers, footswitches, or footpedals, letting you set up all of the functions the way you want them.

About the manual

To get the most out of the MPX G2, we suggest that you invest the time to explore this manual. We think you’ll agree that the time spent investigating will reward you with enjoyment of its full capabilities.

To get off to a quick start, turn directly to Chapter 1 Product Overview and Chapter 2 Basic Operation. The first section provides button definitions and necessary information for setting audio levels and connecting to other equipment. The second will tell you everything you need to know about loading and playing with programs.

When you want to know more, check out the Table of Contents. We've divided topics into many easy to read (or skip) chapters so that you can find what you need without wading through what you don't.

Input/Output

Dual-function knob controls input and output levels.

Level and Clip LEDs indicate presence of signal and overload (input signal greater than -0.1dB).

Guitar

Guitar input. (o ver r ide s rear panel input.)

Effect Select: Gain, Effect1, Effect2, Chorus, Delay, Reverb, EQ

Buttons light to indicate effect is active. In Program mode, pressing button turns off LED and bypasses effect. In Edit mode, pressing button selects effect parameters for editing.

Tap

When Tempo LED is flashing, sets tempo. Press twice in rhythm to establish tempo rate. Press once to reset LFO.

Product Overview

The Front Panel

Program*

Activates Program Mode where you can select and load programs and see which effects are active in any program.

Options

LED lights to indicate options exist for the displayed parameter. Press to access options. (LED will flash while options are displayed.) Press again to exit.

In Program mode, accesses DataBase sorting selection.

Soft Row

Press at any time for instant access to key editing parameters for the current program.

Product Overview

*In Autoload (default), displayed programs load automatically. In Manual mode, press Program to load any displayed program.

Edit

Activates Edit mode for access to all parameters of the currently loaded effect.

Low, Mid, High

Bass, midrange and treble gain controls for the Gain effect in the current program.

Display Aux In LED lights to indicate presence of signal at the

Aux Input. The green Clip LED lights to indicate over- load at the Aux Input. The MIDI LED lights to indicate incoming or outgoing MIDI data.

3-Digit Display indicates ID number of currently loaded program, patch or tuner value.

Two rows of 16 characters display program and effect names, parameter names and values, help and alert messages and tuner information. An edit indicator shows edited effects.

Tempo LED flashes in time with current tempo rate when Tap is active.

A/B LEDs light to indicate A/B function is active.

A/B

Activates a variable glide between patched parameters.

Insert

Activates or bypasses the Insert.

Bypass

Bypasses currently loaded program. When held, activates the built-in tuner.

Power

On/Off.

Store

Initiates program store function.

System

Activates System mode parameters such as auto or manual load, MIDI dumps, I/O configuration, etc.

Knob and < > Knob selects programs, <and > adjust the displayed parameter's value and enter Yes and No responses to screen queries.

1-1

The Rear Panel

LexiconMPX G2 User Guide

MIDI IN

7-pin DIN connector for MIDI IN or powered bidirectional MIDI remote.

THRU

5-pin DIN connector passes any MIDI data received without change.

OUT

5-pin DIN connector transmits MIDI data to other equipment.

REMOTE POWER IN

2.5mm connector for 9 VAC MIDI remote power.

AC Power

Standard 3-pin IEC power connector. 100-240V, 50-60Hz automatic switching to correct voltage range.

Insert Returns (from Preamp)

When connected, external audio will be inserted after the Gain block.

Insert Returns Level

Controls the input level of the Insert Returns.

Foot Pedal

1/4" Tip/Ring/Sleeve phone jack provided for footpedal with 10kΩ to 100kΩ impedance.

Foot Switch

1/4" Tip/Ring/Sleeve phone jack for three independent footswitches.

Insert Send (to Preamp)

When the Insert Returns are connected, all effects before (and including) the Gain block will be passed to this connector.

Phones

Headphone input.

Guitar Input

Guitar input (overridden by front panel input.)

Main Outputs (to Power Amp or Console)

XLR and 1/4" TRS: Output impedance is 600Ω, each side, balanced, and levels up to +18dBu maximum full scale.

Unbalanced output levels up to +21dBu into 100kΩ.

For control voltage input, use a 1/4" stereo plug with Sleeve connected to ground, Tip connected to the control voltage, and Ring unconnected.

1-2

Product Overview

Installation Notes

The MPX G2 uses one EIA-standard rack space, and can be mounted on any level surface or in a standard 19 inch (483 mm) rack. If the unit is mounted in a rack or road case, support the rear of the chassis to prevent possible damage from mechanical shock and vibration.

The maximum ambient operating temperature is 104°F (40°C). Provide adequate ventilation if the unit is mounted in a closed rack with heat-producing equipment such as power amplifiers.

The MPX G2 is equipped with a 3-pin IEC power connector and detachable cord. The unit will operate with power sources from 100 to 240 volts AC, 5060Hz. Power switching to actual line voltage is automatic.

You’re here because you want to play with the MPX G2 RIGHT NOW. Plenty of time to read the manual later right?

OK. First things first. If the MPX G2 isn’t fresh out of the box, let’s make sure that all of the internal parameters are set to their original factory settings. (This won’t affect any user programs.)

1. Press System twice.

2. Use the knob to select Initialize.

3. Press > to display All.

4. Use the knob to select System Only.

5. Press Store.

6. The display will show: Are you sure?/Yes or No.

7. Press Yes.

Mounting

Power Requirements

Quick Start

Reset the MPX G2 to its

factory settings

(User programs are not affected.)

Press System twice.

Use the knob to select Initialize.

What happens next depends on how you want to connect and use the MPX G2. Setups for of the three basic configurations is covered in the following pages.

• Stand Alone: connected directly to headphones, mixer or power amp

• Amp Input Only: connected to a guitar amp that does not have an effects loop

• Amp Input & FX Loop: connected to a guitar amp that has a mono or stereo effects loop

Each application has its own set of programs — so be sure to listen to the programs that match the application.

Press > to select All.

Use the knob to select System Only.

Press Store.

Press Yes in response to the display prompt..

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LexiconMPX G2 User Guide

Stand Alone:

Direct connection to

headphones, mixer or

power amp

Use with

Programs 150-250

Front Panel

1. Turn the front panel Output control all the way down

2. Connect the Left and Right outputs to two input channels of your mixer or power amp

Connect a pair of stereo headphones to the rear panel Phones jack

3. Connect your guitar to the MPX G2 front panel Guitar input

4. Set the MPX G2 front panel Input knob to 2 o’clock.

5. Select your guitar’s most powerful pickup, turn the guitar volume control up all the way and play your loudest.

6. Watch the Level and Clip LEDs above the MPX G2 Input/Output knob. If the red Clip LED comes on more than just occasionally during your very loudest playing, back off the Input knob a bit. (With some guitars, the red LED may never come on — that’s OK.) Now that you’ve got the Input knob set for your loudest playing, feel free to change the controls of your guitar to any settings you like as you audition the MPX G2.

7. While playing, slowly turn up the front panel Output knob until you reach a comfortable listening level. (You will hear a slight ticking as this knob is adjusted — this is normal.)

Now you’re ready to start listening to the Stand Alone programs (150-250).

Turn Output to a comfortable listening level.

1-4

Turn Input to 2 o'clock.

Rear Panel

to stereo headphones to Left and Right inputs of a

mixer or power amp

Product Overview

1. Load MPX G2 program 249 Unity Gain.

2. Plug your guitar directly into your amp and set the guitar volume to a comfortable listening level.

3. Put your amp on standby — or turn it off.

4. Unplug your guitar from the amp and connect the MPX G2 rear panel Send jack to the input of your guitar amp.

5. Connect your guitar to the MPX G2 front panel Guitar input.

6. Set the MPX G2 front panel Input knob to 2 o’clock.

7. Select your guitar’s most powerful pickup, turn the guitar volume control up all the way and play your loudest.

8. Watch the Level and Clip LEDs above the MPX G2 Input/Output knob. If the red Clip LED comes on more than just occasionally during your very loudest playing, back off the Input knob a bit. (With some guitars, the red LED may never come on — that’s OK.) Now that you’ve got the Input knob set for your loudest playing, feel free to change the controls of your guitar to any settings you like as you audition the MPX G2.

9. Press Bypass to bypass the program. (The Bypass LED will turn on.)

10 Take your amp out of standby (or turn it on) and play. The volume and tone

of the guitar should be the same as when you were plugged directly into the amp, thanks to the MPX G2 built-in relay bypass.

11. Press Bypass again to make the program active. (The Bypass LED will turn off). Play and compare this level with the bypassed level — they should be very close.

12. With the program active, adjust the position of the MPX G2 Input knob to match the bypassed loudness.

Amp Input Only:

Connection to a guitar amp that doesn’t have an effects loop

Use with

Programs 100-149

Now you’re ready to start listening to the Amp Input Only programs (100-149).

Front Panel

Turn Input to 2 o'clock.

The Output control is unnecessary when the MPX G2 is used with an amp that doesn't have an effects loop.

to the guitar amp Input

(the same input you would

use to plug in your guitar)

Rear Panel

1-5

LexiconMPX G2 User Guide

Amp Input & FX Loop:

Connection to a guitar

amp with a mono or

stereo effects loop

Use with

Programs 1-99

Seting the MPX G2

Main Outputs to Mono

(for guitar amps with a mono

effects loop)

Press System twice.

Press > to select Audio Output Mode.

Use the knob to change the setting from Stereo to Mono.

Press Program to return to Program Mode.

This is a bit more detailed than Stand alone or Amp Input Only setup — you’ll be connecting the MPX G2 to both sides of your guitar amp’s preamp section. Care must be taken to match levels on both sides of the preamp properly so the tone of your amp is not affected. By the way, as this setup involves making connections and changing controls on both the front and rear of the MPX G2 and your amp, as well as playing, it might be helpful to have someone help you out with this.

If your guitar amp has a stereo effects loop, skip ahead to Part 1. If your guitar amp has a mono effects loop, set the MPX G2 Main Outputs for mono as follows:

1. Press System twice to display System select: Audio.

2. Press > to select Audio Output Mode.

3. Turn the knob to change the setting from Stereo to Mono.

4. That’s it! Press Program to return to Program mode

Part 1: Setting up the Pre Gain Path (connecting to the amp input)

1. Load MPX G2 program 249 Unity Gain.

2. Plug your guitar directly into your amp and set the guitar volume to a comfortable listening level.

3. Put your amp on standby — or turn it off.

4. Unplug your guitar from the amp and connect the MPX G2 rear panel Send jack to the input of your guitar amp.

5. Connect your guitar to the MPX G2 front panel Guitar input.

6. Set the MPX G2 front panel Input knob to 2 o’clock.

7. Select your guitar’s most powerful pickup, turn the guitar volume control up all the way and play your loudest.

Now that you’ve got the Input knob set for your loudest playing, feel free to change the controls of your guitar to any settings you like as you audition the MPX G2.

9. Press Bypass to bypass the program. (The Bypass LED will turn on.)

10 Take your amp out of standby (or turn it on) and play. The volume and tone

of the guitar should be the same as when you were plugged directly into the amp, thanks to the MPX G2 built-in relay bypass.

11. Press Bypass again to make the program active. (The Bypass LED will turn off). Play and compare this level with the bypassed level — they should be very close.

12. With the program active, adjust the position of the MPX G2 Input knob to match the bypassed loudness.

1-6

Part 2: Setting up the Post Gain Path (connecting to the amp effects loop)

1. Put your amp on standby — or turn it off.

2. Turn the MPX G2 front panel Output knob down all the way.

3. Connect the amp’s effects loop send to the MPX G2 rear panel Insert Returns jacks. (Note that when you make this connection, the MPX G2 front panel Insert button lights up to indicate something is connected to the Insert Returns.)

4. If your amp has a mono effects loop... connect the amp’s loop send to the MPX G2 rear panel Right (Mono)

Insert Return jack. If your amp has a stereo effects loop... connect the amp’s left and right effects loop sends to the MPX G2 rear

panel Left and Right Insert Returns.

5. Connect the MPX G2 rear panel Main Outputs to the effects loop returns of your amp. (If your amp has a mono effects loop, you can connect to either the MPX G2 Left or Right Main Output jack.)

6. Set the MPX G2 rear panel Insert Level knob to 0.

7. Take your amp out of standby (or turn it on).

8. With program 249 Unity Gain still loaded, play your guitar. (You won’t hear anything yet.) Slowly turn up the MPX G2 rear panel Level knob. (The MPX G2 front panel Aux In LED should light to show that you have signal coming into the Insert Returns.) Continue increasing Level until the MPX G2 front panel Clip LED only lights occassionally during your very loudest playing.

9. Slowly turn up the MPX G2 front panel Output knob until the amp is back at its original loudness. (For most amps, this will be at about the 2 o’clock position.) You will hear a slight ticking as this knob is adjusted — this is normal.

Note the positions of the MPX G2 front panel Output knob as well as the postition of the rear panel Level knob. These should be the same whenever you connect to this particular amp.

Product Overview

NOTE: To get the output level exactly right, you need to compare the volume of the amp with its effects loop disconnected, to its volume with its effect loop con- nected. Here’s where an extra pair of hands can be very helpful. Load Program 249 Unity Gain. While you play, have someone else unplug the effects loop connections from the amp. Listen to the loudness of the sound, then have the loop plugged back in.

If the amp is louder with the loop connected, turn down the MPX G2 front panel Output knob.

If the amp is softer with the loop connected, turn up the Output knob. Repeat this until you can’t hear any volume difference with the loop connected or not.

OK, that's it! Now you’re ready to start listening to the Amp Input & FX Loop programs (1-99).

Set both Input and Output to 2 o'clock. (See instructions.)

to guitar amp Left and Right effect Returns Connect either the Left or Right Main Out-

put to a guitar amp with a mono effects loop. (See instructions for setting MPX G2 Audio Output Mode to Mono.)

Adjust Level so that the Clip LED does not light. (See instructions.)

from guitar amp effects loop Send

to the guitar amp Input (the same input you would use to plug in your guitar)

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LexiconMPX G2 User Guide

Connecting Other

Equipment

Footswitch/Footpedal

One 1/4 inch T/R/S phone jack is provided for 3 momentary footswitches. Another 1/4 inch T/R/S phone jack is provided for a footpedal (minimum 10k to maximum 100k impedance). Normally open or normally closed momentary switches are suitable. At power on, the MPX G2 assumes the switch is off. Use shielded, twisted-pair cable with shield connected to sleeve. See diagram on previous page. See also Chapter 5: System Controls for information on pedal calibration.

MIDI

5-pin DIN connectors are provided for MIDI THRU and OUT. A 7-pin DIN connector is provided for MIDI IN or a powered remote. Use standard MIDI cable assemblies, available from your local dealer.

Connecting to an MPX R1

When an MPX R1 is connected to an MPX G2, two-way communication is accomplished via MIDI System Exclusive messages. This allows immediate response by both units to actions on either front panel.

Connect the power adapter provided with the MPX R1 to the MPX G2 REMOTE POWER input jack and to a wall outlet.

Power up the MPX G2 and connect the 7-pin DIN cable provided with the MPX R1 between the MPX G2 rear panel IN/REMOTE jack and the MPX R1 MIDI OUT/REMOTE.

1-8

The MPX R1 will cycle through a power-up routine, lighting various LEDs, and then display Con. The MPX G2 will display Remote Detected. These messages indicate that proper bidirectional control has been established.

Relay

(Amp Channel Select)

7-pin DIN

to AC Power

Source

to Lexicon

MSA Adapter

Connect a 7-pin DIN cable between the MPX (1 or G2) and the MPX R1.

Connect the MPX (1 or G2) to the MSA adapter provided with the MPX R1.

Cable

Foot Switch

Foot Pedal

Reverb

Chamber Hall Plate Ambience Gate

1-Band (M) 2-Band (M) 3-Band (M) 4-Band (M) 1-Band (S) 2-Band (S) 1-Band (D) 2-Band (D)

Fc Splitter Crossover Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol

Panner Auto Pan Tremolo (M) Tremolo (S) UniVybe CustomVybe Phaser OrangePhase RedComp

Effect 2

BlueComp DigiDrive1 DigiDrive2 OctaBuzz SweepFilter 1-Band (M) Wah 1 Wah 2 Pedal Wah1

Product Overview

Pedal Wah2 Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol Test Tone Click

Gain

Tone Crunch Screamer Overdrive Distortion Preamp SplitPreamp

Chorus

Chorus Detune (M) Flanger (M) Flanger24 (M) Flanger (S) Rotary Cab Aerosol Orbits Centrifuge1 Centrifuge2 Comb 1 Comb 2 Volume (M) Volume (S) Volume (D) PedalVol

Delay

Delay (M) Delay (S) Delay (D) Echo (M) Echo (S) Echo (D) Looper JamMan Ducker

Effect 1

Detune (M) Detune (S) Detune (D) Shift (M) Shift (S) Shift (D) DiatonicHmy Panner Auto Pan Tremolo (M) Tremolo (S)

Connecting an MPX R1 to the MPX G2 gives you stomp-box control of all of the MPX G2 effects.

UniVybe CustomVybe Phaser OrangePhase RedComp BlueComp DigiDrive1 DigiDrive2 OctaBuzz SweepFilter 1-Band (M)

Wah 1 Wah 2 Pedal Wah1 Pedal Wah2 Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol Test Tone Click

1-9

LexiconMPX G2 User Guide

Signal Flow

Pre-Gain Path

Following are diagrams showing signal flow in the MPX G2 Pre-Gain and PostGain paths. When combined, these two diagrams show the entire signal path between your guitar and the Main Outputs when the MPX G2 is used as a standalone processor. Depending on which effects are active in a given program (and where they are placed), the MPX G2 will automatically route around unnecessary analog circuits as well as A/D and D/A converters. This allows signal-to-noise and dynamic range to be optimized for every program.

Effect 1, Effect 2, Chorus, Delay, Reverb and EQ can be placed in any combination on either, or both, pre gain and post gain paths.

This is the signal flow between your guitar and amp when Insert Send is connected to the input of the guitar amp (pre gain path). The “straight-wire” bypass path and automatic bypass relay function as an effect loop switcher. The analog noise gate will help keep noise under control when you use effects in front of your amp’s high-gain channel.

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Post-Gain Path

This is the effects loop processing path when the Insert Returns are connected to your amp’s effects loop sends (post gain path). The built-in Insert Router and Digital Router automatically configure the signal flow based on which connections and settings you’re using. The stereo noise gate can reduce stage levels to near silence when you stop playing - without muting the tails of post gain effects like delays or reverbs.

Product Overview

The MPX G2 is a complete guitar processing system. As such it has two independent audio paths: one for effects that go directly between the guitar and the input to the amp (pre-gain path), the other for effects that are inserted in the amp’s effects loop (post-gain path). Analog Dynamic Gain effects (Tone, Crunch, Screamer, Distortion, and Preamp) are dedicated to the pre-gain path. The other 70 effects can be placed anywhere on either path and each one of the 300 MPX G2 programs can have its own unique combination of effects, distributed on either path.

When different pieces of audio gear are connected together, care must be taken to avoid ground loops (which can cause noise and hum problems). The MPX G2 uses a special grounding scheme to safely minimize grounding-related problems. All circuits are internally connected to a common ground plane. (This is the same approach used to ground racks of gear in studio installations and touring rigs.) The chassis is isolated from the printed circuit board to prevent ground loops through the ground pin of the AC cord. No special cables are required when connecting the MPX G2 to other equipment.

Note that the G2 must always be properly grounded via the ground pin in its AC line cord.

With the exception of the Main Outputs and the stereo Headphone connectors, all of the 1/4" connectors are unbalanced mono jacks. For best performance use high-quality, shielded instrument cables.

Dual Audio Paths

Internal Grounding

Unbalanced Connections

The MPX G2 has two high impedance guitar inputs: one on the front panel and another on the rear panel. Connecting to the front panel input will override a connection made at the rear panel input.

For best performance, maintain balanced connections, and use high-quality, low-capacitance, shielded twisted-pair cable. Use shielded instrument cables for unbalanced connections.

When connecting the MPX G2 XLR outputs to single-ended, unbalanced devices, leave the low side floating and connect the grounds between the units.

Guitar Input

Main Outputs

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Insert Send

Insert Returns

The MPX G2 Insert Send is always active. When Gain is on, its signal is from the Gain block output. When Gain is bypassed, or when no Gain effect is in the program, its signal is from the Gain block input. Note that this signal passes through a programmable level control (Edit mode: Mix: Send Level) and analog noise gate before leaving the unit via the Insert Send jack. Note also that whenever there are no active effects between the guitar input and the Insert Send, a relay automatically switches in a “straight-wire” bypass path. This ensures that there is nothing between your guitar and your amp unless one or more pre-gain effects are active. (Until the MPX G2, the only way to get this same kind of analog purity when using effects was to install a dedicated effects loop switching unit.)

Inserting a jack into either (or both) Insert Return connectors breaks the normalled connections between pre-gain and post-gain paths, allowing you to insert an external device (guitar preamp, effects processor, etc.) into the MPX G2 signal path. When an external device is inserted, the front panel Insert button LED will light.

The external device can be bypassed by pressing Insert (its LED will go out). When the MPX G2 is connected to an amp’s effects loop, you can use the Insert button to bypass the amp’s preamp and send MPX G2 signals directly into the amp’s power amp. This feature allows you, for example, to switch between your amp’s high-gain channel and an MPX G2 Gain effect clean channel.

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Automatic

Insert Return

Signal Routing

Right (Mono) Only

Stereo

Left Only

The Insert Return jacks have software-controlled sensing and switching circuitry to automatically route signals depending on which jacks are used and the MPX G2 bypass state.

When only the Right Insert Return is connected, its signal is split and sent into both the left and right channels of the post-gain path. When the unit is bypassed, the dry Insert signal will be present at both outputs.

When both Left and Right Insert Returns are connected, their signals are sent in stereo to the left and right channels of the post-gain path. When the unit is bypassed, the dry stereo signal is present at the outputs.

When only the Left Insert Return is connected, its signal is sent only to the left channel of the post-gain path. The right channel of the post gain path is “normalled” to the right channel of the pre gain path. When the unit is bypassed, the dry Insert signal is present on the left output and the Guitar Input signal is present on the right output.

Product Overview

The MPX G2 Main Outputs are set to stereo at the factory. When connecting the MPX G2 to an external device with a mono input (such as a mono effects loop return), set the Main Outputs for mono as follows:

1.Press System twice. The display will show System select: Audio.

2.Press > to select Audio OutputMode.

3.Turn the knob to change the setting from Stereo to Mono.

4.Press Program to return to Program mode.

The MPX G2 is factory set to produce unity gain when the front panel Input and Output controls are set to 2 o’clock, and the Input Clip and Aux In Clip LEDs only come on briefly during your very loudest playing (if at all). (See Quick Start earlier in this chapter for detailed instructions on setting levels.)

Soft Sat is a built-in analog limiter that precedes the A/D converters in the MPX G2. If the source to the MPX G2 is "hot", you can use Soft Sat to reduce the harshness caused by overloading the A/D converters. Press System, select the Audio menu, then select Soft Sat to turn the limiter On or Off.

The green Level LED indicates signal presence (above -30dB) at either the front or rear panel guitar inputs. The red Clip LED indicates overload at either of these inputs, or overload of any effect in the pre-gain path.

Connecting the Main Outputs to Mono Input

Setting Audio Levels

Using Soft Sat

Input Level and Clip Indicators

The Aux In LED indicates signal presence at either of the two Insert Return jacks. The Aux In — Clip LED indicates overload of either of the Insert Returns, or overload of any effect in the post-gain path.

Aux In and Clip Indicators

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Basic Operation

Beginning with a menu tree to guide you through the major areas of the MPX G2, this chapter focuses on the basics that you want to get to first — finding, loading, tweaking and storing programs.

Basic Operation

MPX G2 Menus

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Loading and Playing

with Programs

When loading programs, the knob selects programs. The < and > buttons jump to the next DataBase sorting category.

Program Load

Pressing the front panel Program button accesses the MPX G2 library of 300 presets and user programs. In this mode, you can select and load programs, select database sorting criteria and access the "Soft Row" — a selected set of the most useful parameters for each program. You can also access Tap, A/B, Mix and Patch functions, as well as selecting and bypassing effects in the program. Each of these is described in this section.

When you press the Program button, its LED will light to let you know you're in Program mode.

Press and hold the Pro- gram button to display

the name and number of

the currently running program while another program is displayed. If the displayed program is currently loaded, pressing and holding Pro- gram will display the effect routing assignment.

In Manual Load, press the flashing Program button to load the displayed program.

Auto Load

When first shipped, the MPX G2 will default to automatic program load, with all of the programs available in numerical order from 1 to 300. The top line of the display will show the DataBase sorting option "Sorted by number". The bottom line of the display will show a program name. The large numeric display will show the ID number of the displayed program.

Turn the knob to display and load other programs. An asterisk (✱) will appear briefly before each program name before it loads.

Manual Load To switch to manual program load, press System. Use the knob to select Modes, then use the < and > buttons to display:

Modes: Pgm Load < > Auto

Turn the knob to select Manual. In this mode, an asterisk (✱) before the program name indicates that the displayed program is not loaded, and the flashing

Program button LED indicates that the program is cued for loading when Program is pressed. (When the currently loaded program is selected, the Program button LED will light steadily, and there will be no asterisk in the

display.)

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Basic Operation

The front panel Effect buttons light to show you which effect blocks are active. — When you're scrolling through programs, they'll change to show you the effects in any displayed program. Once you stop scrolling, they'll return to display of the effects that are active in the currently loaded program.

To bypass any active effect, press its button. The light will turn off and the effect will be bypassed. Press the button again to make the effect active again.

Press and hold down any effect button to display the name of the effect and information about its status in the program (on or off).

External audio gear (guitar preamp, CD player, etc) can be inserted into the MPX G2 audio path via the rear panel Insert Return jacks. The front panel Insert button will light to show you when this connection is active.

To bypass this external connection, press Insert. The LED will turn off and the inserted gear will be bypassed. Press Insert again to make the inserted gear active again.

When the MPX G2 leaves the factory, Insert connections are routed in series between the pre-gain and post-gain paths. (This is the best routing to use when connecting to amplifier effects loops.) You can alter this routing by changing the setting of the Insert parameter in the System: Modes menu. Be sure to read about the three different Insert Modes (FX Loop, Mix and Parallel) in Chapter 5: System Controls.

Effect Bypass

The active effects of the currently loaded program are lighted. Press any lighted button to turn the effect off. Press it again to make the effect active again.

Insert Bypass

Press the lighted Insert button to

bypass devices connected at the MPX G2 Insert Return jacks.

NOTE: When the MPX G2 is connected to a guitar amp with an effects loop, the Insert button allows you to switch the guitar amp’s preamp in and out of the audio path. When it is out of the path, the guitar signal flows through the pre- and postgain paths and then directly into the power amp. This allows you to switch between dramatically different tones with a single button push.

The MPX G2 has three dedicated front panel tone controls which allow instant modification of the Low, Mid and High settings of the Dynamic Gain effect in the current program. These controls are analog pots. Changes made with these knobs take place immediately (You don’t have to pass-through the current value- once you move the knob, it “owns” the parameter.)

When any of these controls is moved, the display will briefly show the current values of all three controls, then return to the previous screen. Changed settings can be stored by pressing Store to initiate the Store procedure.

Be aware that in many of the Dynamic Gain effects, these tone controls interact with the analog distortion circuitry, increasing or decreasing the amount of distortion in Low, Mid and High frequency bands.

Dedicated Analog Tone Controls

Dedicated front panel tone controls allow instant modification of the Dynamic Gain effect in the current program.

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Programmable Bypass Modes

You can choose to have Bypass bypass the pre-gain path, the postgain path, or both paths in System mode.

Tuner

As the MPX G2 is designed with separate pre-gain and post-gain effects paths, the master Bypass button can be progammed to function in a variety of useful ways. The factory setting is for both paths to be bypassed when Bypass is activated. You can choose, however, to have this button bypass only the pregain path, only the post-gain path or both paths.

Bypass behavior for each path can be independently programmed as well. The pre-gain path can be set to Disabled or to provide an analog "straight wire" Bypass.

The post-gain path can be set to Input Mute (delays and reverbs will "ring out" when bypassed), All Mute (no output when bypassed) or Bypass. When set to Bypass, the post-gain path has an optional Bypass Level parameter that allows you to set an independent level for when the post-gain path is bypassed.

(Be sure to read about SendBypass and PostBypass under System: Modes in Chapter 5: System Controls.)

The MPX G2 has a built-in chromatic tuner. To activate the tuner, press and hold Bypass. When the tuning displays appear, release the button and play a note. The displays will show the name of the note you played, and also indicate how flat or sharp it is.

+ - - - - - [ ❚ ❚ ] - - - - - + note= E

When the MPX G2 is connected to an MPX R1 MIDI Remote Controller, the tuner is also displayed on the MPX R1 numeric display.

Flashing of the Tempo LED indicates that Tap is active. Press Tap twice in rhythm to change the tempo of delay or modulation parameters in the current program.

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The note you play is shown on the display along with indicators to show whether the note is sharp, flat, or in tune.

When you’re finished tuning, press Bypass again to return to normal operation. When the Tuner is activated, the Insert Send and Main Outputs are automati-

cally muted. You can change this behavior by changing the setting of the Tuning Bypass parameter in the System: Tuner Mode menu. (See Chapter 5: System Controls.)

Tap

MPX G2 tempo controls are available right on the front panel through the Tempo LED and the Tap button. Many preset programs are designed with their own tempo rate settings which are stored with the programs. The front panel Tempo LED will flash in tempo whenever you load a program with tempo control. This flashing indicates that the Tap button is active, allowing you to change tempo on the fly. Whenever you see the Tempo light flashing, simply press Tap twice in rhythm to establish the rate you want.

You can override these individual tempo rates with a global tempo rate in the System Setup menu. Tempo is also available as an independent patch source which can control any effect parameter. (See Chapter 4: Patching and Chapter 5: System Controls.)

Basic Operation

A/B is a unique glide function which allows you to "morph" between selected parameters. Most effect parameters (or groups of parameters) can be patched to the A/B controller. Once a parameter is patched, the A/B controls in Edit mode allow you to select the rate at which you want to glide from A to B and from B to A when the front panel A/B button is pressed. You can also assign the glide function to be triggered by any internal source, such as input level, or by an internal or external controller.

Many of the presets are designed with A/B patches that allow you to morph between two effects, glide from slow to fast rotary speakers, start and stop loop delays, etc. Loading any program with A/B control assigned, will cause the front panel A LED to light, indicating that the A/B function is active. Press A/B to activate a glide from the parameter values assigned to A to the parameter values assigned to B. Press A/B again to glide back to the A parameter values. (When you want to change the A/B parameters, control A/B remotely, assign a trigger source, or alter the rate of glide, refer to Chapter 4: Patching and Chapter 8: MPX G2 Internal Controllers.)

The MPX G2 offers access to the most useful parameters of any program without having to enter a separate Edit mode. These parameters are available at any time by pressing Soft Row.

The upper line of the display will show the Effect type, the parameter name and the current parameter value. The lower line of the display will show the name of the program. Use the knob to change the parameter value. Use the < and > buttons to move back and forth between the available parameters. A scroll indicator in the lower left corner of the display tells you whether or not there are more parameters in either direction.

A/B

When A is lit, pressing the A/B button activates a parameter glide. Pressing A/B again reverses the glide.

Soft Row Editing

Press Soft Row to

access a set of the most useful parameters for each program.

Changes you make to parameters in the Soft Row will be saved only until you load another program unless you store your modified version of the program. See Program Store later in this section.

Press Soft Row to access Soft Row parameters. The Effect type and the parameter name will appear on the upper line.

Gain Drive > 25

Scroll indicators (< and >) on the bottom of the screen point you in the direction of additional screens.

The parameter value will flash in the lower right. Use the knob to change the parameter value, use < and > to select another parameter screen.

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Using the DataBase

In Program mode ...

... press Options to access the DataBase sorting options.

The MPX G2 has a database sorting function which allows you to sort and search for programs in various categories. This is a great timesaver when you're looking specifically for guitar effects, or EQ effects, or for EQ effects for guitar. When shipped, the DataBase sorting option is set to "Sort by number", allowing you to use the knob to scroll through all of the 300 programs in numerical order in Program mode. (The < and > buttons will jump you forward and back ten programs at a time. Simultaneously pressing < and > jumps from 1 to 251 or from 251 to 1.)

You can select other sorting criteria in Program mode by pressing Options. The

Options LED will blink and the display will show:

Sort programs by number

Use the knob or the < and > buttons to select any of the main sorting options listed below:

name number guitar style

(Acoustic, Bass, Blues, Clean, Country, Jazz, Rock)

effect type

(Chorus, Delay, Distortion, EQ, Flanger, Gain, Mod, Overdrive, Phaser, Pitch, Reverb, SpkrSim, Wah, All)

application type

(StndAlne, Amp In, FX Loop) members of MIDI maps members of pgm chains last 10 programs loaded

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Press Options again to return to Program mode with the database sorted to show only those programs that fit the criteria you've selected. If you select "name", the knob will scroll you through all 250 programs in alphabetical order (The < and > buttons will jump you forward and back through letters of the alphabet.)

If you select any sorting option other than sort by name or number, the displayed selection of programs will be limited to those which fit the category. — We've made sure that all 250 of the factory programs are tagged for a variety of appropriate sorting options, so you'll find plenty to play with in each category.

NOTE: MPX G2 programs have been designed for specific applications. Stand alone programs may not sound right if listened to through a guitar amp and vice versa.

When you select guitar style, effect type or app type as an option and return to Program mode, the knob will scroll through the programs in the first of the categories listed in parenthesis above. The < and > buttons will jump to the next sorting category.

Assigning guitar style, effect and app types to programs is done in a database menu in Edit Mode.

Basic Operation

Once you've made changes to a program, such as turning an effect off, or modifying any of the soft row parameters, an edit indicator in the display (•) will appear in front of the program name. This identifies the program as having been altered since the last store procedure. This edit indicator, along with all of your changes, will disappear when you load another program.

To save your changes, press Store. The LED in the Store button will flash to let you know you are in the middle of a store procedure and the display will show:

Program Name

251 available

The upper line of the display shows the name of the currently running program. The lower line shows a user program number (251-300) and the name of the program currently stored there. (When the MPX G2 is shipped, the user programs are all "available".)

The < and > buttons move an underbar cursor in the display from the program number to each letter of the current name. Turning the knob will select another program number, or will select alphanumeric characters when the cursor is in the upper line of the display.

Once you've made changes to the program name or selected a new location for it, press Store again. The display will show:

Program Store

Press Store to initiate the store procedure.

The Store LED will flash while you change the name of the program and decide where to store it.

Press the flashing Store button to verify your changes.

Are you sure?

Yes or No

The numeric display will flash the user program number you have selected while you decide to press > Yes or < No. Once you have stored your program, it will automatically be added to the database and you will return to Program Load mode.

The following are stored with the program*:

• All effects and their settings

• Effect Order and Routing Map

• Bypass state of each effect

• Insert state (if jack(s) are plugged into Insert Return(s) when the program is stored)

• Master Bypass state of the program when it was stored

• Toe Switch setting (Option)

• Speaker Sim On/Off and Cabinet

• Noise Gate settings

• Tempo settings

* This assumes that Reverb, Speaker Sim, Noise Gate, Tempo and/or Bypass modes are set to Program. Any of these that are set to Global, will not be stored.

NOTE: If the stored program no longer meets the DataBase sorting criteria of the original version, the MPX G2 will automatically switch the DataBase setting to "Sort by number".

Press Yes to complete the store.

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Editing

This chapter describes all of the MPX G2 edit functions. As the first thing you are likely to want to modify in a program are its effects, this section starts there and then moves on to all of the functions available in Edit mode.

To edit any effect, press Edit, then press an Effect button to view all of the Effects of that type, and to edit the parameters of the current Effect. The display will show the Effect type and the name of the currently loaded Effect . Turn the knob to view other Effects of the displayed type.

Editing

Effect Editing

This indicator shows that Options are available

FX 1■select: nn

Arrow scroll

The Effect name will be marked with an asterisk (✱) and the Effect button light will blink rapidly if the displayed effect can be loaded in the current program. (Press and hold the Effect button to display the name of the Effect currently in use.)

An X appears in place of the asterisk if there are not enough DSP resources to load the effect. Two seconds after an algorithm is selected with the knob, the following screen will appear briefly, showing the number of resources available:

Number of processing steps used (including the currently running effect)

> ✱ Effect Name

number of processing steps remaining

nn available XXX of 190 used

Knob scroll

▲ ▼

Number of processing steps used for this effect

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Coarse and Fine Editing

of ms and Hz values

Parameters whose values are displayed in ms or Hz have overall ranges of more than 1000 units. When you select one of these parameters for editing, you’ll notice that either the left or right portions of the value can be selected for editing. For quick, coarse adjustments, select the left portion of the value. For fine adjustments, select the right portion of the value. The fine and coarse increments for each type of parameter are:

ms (delay times)

coarse increments=100 ms fine increments=1ms

Hz (LFO rates)

coarse increments=1 Hz fine increments=.01Hz

Hz (EQ Fc)

coarse increments=100 Hz fine increments=1Hz

If there are not enough resources available to load the effect you want, another effect must be removed from the program to make resources available.

To load any available Effect, press the Effect button again. The asterisk will disappear from the displayed name and the button light will return to its normal slow blinking edit state. An edit indicator is displayed to indicate that the active program has been modified.

To edit the parameters of the current effect, press > . The display will show one or more parameters as shown below.

An edit indicator appears in front of the parameter name if the value has been changed since the last store operation.

A patch indicator appears before the parameter name if it is controlled by a patch.

The Effect type is shown in the upper left of the display.

Effects with Rate and Depth, or other dynamic parameters, have animated meters here.

FX 1P.Mix Level < > ❚ 100% 0 dB

One or two parameters will be shown on each parameter screen.

Parameter values are shown on the bottom line of the display.

Fields which are selected for changing will blink.

The item on the lower line of the display which is selected for adjustment will flash. Turn the knob to scroll through the entire range of parameter values. Use the < and > buttons to select another parameter value field and to move to another parameter screen.

Press Options to set the

MPX R1 Toe Switch to control Bypass of the effect, or to disable the Toe Switch.

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Detailed information on each Effect and its parameters is provided in Chapter 7. Press Edit to return to the main Edit menu.

Effect Select Option: Toe Switch (when an MPX R1 is connected)

When an MPX R1 MIDI Remote Controller is connected to the MPX G2, the Toe Switch option allows you to use the R1 Toe Switch to turn the effect you are editing on, to bypass it, or to specify that the Toe Switch have no effect.

This powerful feature allows you to group different effects to be turned on or off whenever the MPX R1 Toe Switch is pressed. For example, set Wah for Off=Bypass and set Chorus for On=Bypass to switch between a Wah and Chorus whever the Toe Switch is pressed.

To assign a Toe Switch function to an effect you are editing, press Options from the FX select: display. Use the knob to select On = Bypass, Off = Bypass or disabled. Once you have made your selection, press Options again to return to Effect Edit mode.

Editing

The MPX G2 Edit menus give you access to all of the controls you need to create your own programs. Whether you want to view the meter display, re-route the effects in a program, or create an entirely new sound, you will find the tools you need in this section.

The complete Edit mode menu structure is shown below, followed by detailed explanations of each main menu selection.

Press Edit to enter the main Edit menu. Use the knob to select the particular submenu you want (Mix, Speaker Sim, etc.).

The MPX G2 Edit Menus

Edit select:

▼

> Mix

Use the < and > buttons to enter the submenu and select parameters, and the knob to adjust parameter values. Press Edit again to return to the main Edit menu.

Each of the Edit submenus is discussed in the following pages, in the order they appear in the Edit menu.

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Press Edit to enter the main Edit menu and use the knob to select Mix.

Mix

The display will show Mix and Level labels on the upper line, and the current settings on the lower line. One of the values on the lower line will be flashing to let you know which is selected for adjustment. Use the < and > buttons to select Send Level, Post Mix and Level, or to step to the Mix and Level controls for any active effect in the currently running program. Use the knob to adjust the flashing parameter value.

Use > to step to the Level parameter, or to step forward to the next screen of Mix and Level parameters.

Post Mix Level < > 100% 0dB

The knob will adjust the flashing parameter value.

LexiconMPX G2 User Guide

Adjusting Pre-Gain and

Post-Gain Level

With the Send or Post

parameter displayed, press Options to access Bypass Level.

In the MPX G2, both the pre-gain and post-gain paths have independent programmable level controls. Be sure to read about MPX G2 signal flow in Chapter 1.

The Send parameter controls the level of the Pre-Gain signal leaving through the rear panel Send jack. When the front panel Input knob is set correctly (with the Clip LED lighting only occasionally during your loudest playing), a Send Level of 0dB will match the level of the Unity Gain Relay Bypass.

The main purpose of this control is to allow you to match the overall Pre-Gain effects level with the level when the Pre-Gain path is bypassed. It can also be used to provide clean boost to add additional punch to kick a clean amp into overdrive.

Send Options: Send Byp Level

This parameter controls the Send output level during the transition between two programs when a new program is loaded — to allow you to smooth out any volume differences that might occur during program load. For most programs this level should be set to 0dB.

The Post-Gain path also has programmable effects and bypass levels. The Post Level parameter sets the overall level of wet (effects only) signal. It can add as much as 6dB of additional gain.

Post Options: Post Byp Level

This parameter sets the output level of the Post Gain path when it is bypassed. A setting of 0dB corresponds to unity gain.

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These parameters allow you to match Post-Gain effects and bypass levels so that transitions between bypass states and program loads will be smooth. For most programs the Post Byp Level should be set to 0dB and the Post Level parameter should be changed to match the bypass level.

Editing

The MPX G2 has a progammable analog speaker simulator which is located between the pre- and post-gain paths. When used as a stand alone processor, the speaker simulator is connected to the output of the MPX G2 analog preamp.

The speaker simulator can be set to Global or Program mode. When set to Global, the current speaker simulator settings will be active for all programs when they load. (This is a quick way to turn the speaker sim on or off for all programs.) When set to Program, each program will load with its own Speaker Sim settings.

When the speaker simulator is active, a small speaker icon appears in the Program display.

Be aware that the factory programs that use the speaker simulator were designed to sound best when the MPX G2 is used as a stand alone processor. These will sound overly dark if used through a guitar amp and speaker cabinet. (Just turn Speaker Sim off if you want listen to them through a guitar amp.)

Likewise, factory programs that don’t use the speaker simulator will sound best through a guitar amp. Programs that use a gain effect and don’t use the speaker simulator will sound harsh when you listen to them directly through headphones or at a console. (Turn Speaker Sim on to listen to these programs direct.)

There are 4 cabinet designs to choose from: Combo1, Combo2, Stack 1 and Stack 2.

Combo 1 is an open-back cabinet with 10” speakers. Combo 2 is an open back cabinet with 12” speakers. Stack 1 is closed back with 12” speakers. Stack 2 is closed back with 10” speakers.

Speaker Sim

NOTE: You can use the simulator to process the output of an external preamp by simply connecting the external preamp to the MPX G2 Return jack(s). The speaker simulator is a mono circuit. When both returns are used, they are summed to mono within the speaker simulator.

See diagrams on the following page.

Each cabinet can loaded with one of four speaker types: Bright, Normal, Warm, and Dark.

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Automatic

Speaker Sim Routing

All routing to and from the Speaker Simulator is automatic, based on which Insert Return jacks are used and whether or not Split Preamp is loaded into the Gain effect block.

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Editing

The MPX G2 has two integrated noise gates, one analog and one digital. Both are driven by the direct signal. The gates share a common set of parameters and can be used independently, or combined to create a “super gate”.

The analog gate is the final output stage of the MPX G2 pre-gain Insert Send path. This allows you to gate the analog signal connected to your guitar amp. The attack and release times of the analog gate are fixed (both are preset to be very fast).

The digital gate is located on the post-gain path, immediately after the Insert Returns. This stereo gate allows you to gate the effects Send signal coming from an external guitar preamp before it is processed by any post-gain effects such as reverb or delay. (This means that reverb and decay tails will ring out naturally when the gate shuts down.) The digital gate is driven by the same pure guitar signal as the analog gate, so both gates have the same sensitivity to light touch — no matter how many effects the guitar is going through.

When the MPX G2 is connected in front of an amp and/or in the effects loop, these two gates form an integrated noise reduction system that provides more than 120dB of attenuation. When the G2 is used with amp input only, the analog gate provides 40dB of attenuation. When the MPX G2 is used as a stand alone processor, the digital gate provides 90dB of attenuation.

Signal Flow with no Returns connected

The Analog Noise Gate controls the signal leaving the Send jack. It is used to gate audio going to a guitar amp input.

The Digital Noise Gate controls signals going to the post-gain path. It is used to gate audio from the pre-gain path (no Inserts connected) or to gate audio coming in through the return jacks.

Signal Flow with Returns connected

Noise Gate

Given a choice, many players prefer not use gates of any kind as they can affect tone and playing style dynamics. In live and recording situations where highpowered amps are pushed hard, however, the use of a gate is sometimes unavoidable. (If a player uses stomp-box effects in front of the amp, and rack effects in the effects loop, two gates are required: one between the amp input and the last stomp box in the effect chain, and another on the amp's effects send to gate noise before it hits the rack processors.)

In a component system, the gate is driven by the processed guitar audio — which means that the threshold must be set quite high to compensate for all of the noise added by the pre-gain effects (wah, compressor, overdrive, etc.). You have to play pretty hard to get the gate to open up, and sustained notes are noticably chopped off.

As the MPX G2’s analog gate is driven by the unprocessed guitar, the threshold can be set much lower, creating a sensitive gate that opens up with a very light touch and which remains open considerably longer during sustaining notes and chords. It also makes it possible to use the guitar’s volume control to control the gate directly.

Both the analog and digital noise gates share the same sensing — which can be set to either Guitar Input or Return Only.

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Meters

The G2 has a built-in meter array that allows you to simultaneously view guitar input level, main output levels as well as the levels of all individual effects blocks, except Gain.

The meters are displayed in fixed order: Input, Effect 1, Effect 2, Chorus, Delay, Reverb, EQ, Output.

Effect blocks are indicated by their number or inital letter.

I 1 2 C D R E O

❚ ❚ ❚ ❚ ❚ ❚ ❚ ❚

Each effect block has a 7-segment with an overload indicator (A + at the top of the meter block).

Each block’s output level is shown with a 7-segment meter. Overload is indicated by displaying a plus sign on the top right side of the individual meter.

Use the meter display to check levels throughout the effect chain, or to track down overload in an individual effect.

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Editing

Selecting Effect Order from the Edit menu allows you to put the seven MPX G2 Effect blocks in any order you wish. Press > to display the current ordering and routing configuration. An ordering display such as the one shown below will appear.

An underscore identifies the Effect block which is selected for moving to a new location.

1=2=g=C=D=R=E

Effect types are represented by their initial letters or numbers. Upper case letters and large numbers indicate that the Effect is active in the current program. Lower case letters and small numbers indicate that the Effect is inactive.

Each Effect block is represented by a single letter or number, an upper case letter or large number if the Effect is active in the current program, a lower case letter or small number if it is not. The symbols between each letter indicate the current routing connection options. An underscore identifies the Effect block that is currently selected for repositioning. (In the example shown above, the Chorus block is selected.) To move the selected block to a new position, simply turn the knob. Use the < and >buttons to select (underscore) a different Effect block for repositioning.

Using the same example, turn the knob two clicks to the right to move the Chorus block and alter the Effect Order as shown below.

Effect Order

The Chorus block is selected for repositioning.

Turn the knob one click to the right to swap the Chorus block with the Delay block.

Turn the knob one more click to the right to move the Chorus block another step to the right.

1=2=g=C=D=R=E

1=2=g=D=C=R=E

1=2=g=D=R=C=E

Press Edit to return to the main Edit menu.

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Routing Map

The MPX G2 allows you to reconfigure the effect blocks along audio paths of your own design. The Routing Map is a graphic display that shows routing and connections between the MPX G2 effect blocks. Use the Routing Map to change connections between individual effects and also to change the overall routing configuration of all seven effect blocks as a group. All of the routing controls available in the Routing Map menu are explained in this section, along with examples of the selections you can make. Remember that you can change the order of the effect blocks as well. (See Effect Ordering on the previous page.) In these examples, we'll use the default effect order to keep things simple.

Before going into the details of the Routing Map, it's worthwhile to review basic signal flow through the MPX G2.

The overall signal flow through the MPX G2 is divided into two paths: a pre-gain path and a post-gain path. The six DSP effect blocks (Effect 1, Effect 2, Chorus, Delay, Reverb and EQ) can be placed in any combination on either the pre-gain or post-gain portions of the audio path.

The position of the Gain effect block in the Routing Map determines the boundary between the two paths. The pre-gain path is made up of the Gain effect block and all effects on the path that connect to the inputs of the Gain effect. The post-gain path consists of all effects on the path connected to the outputs of the Gain effect block.

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When you want to connect the G2 to external guitar amp or other gear, it is important to understand where the Send and Insert Returns are in relation to the Routing Map display. The Send jack is permanently connected to the path at a point immediately following the Gain block outputs. The Insert Return jacks are permanently connected to the path at a point immediately following the Send.

The path through an MPX G2 DSP effect block looks like this:

Note that the dry path through the effect is stereo, and a variable wet/dry mix is included for each DSP effect. The wet path through the effect can be stereo or mono in, and stereo or mono out, depending on the particular effect.

The path through an MPX G2 analog Gain effect is slightly different:

Editing

Note that there is no wet/dry mix path for the analog effects and that these effects are mono in and mono out.

Each of the Effect blocks (Effect1, Effect2, Gain, Chorus, Delay, Reverb and EQ) is represented in the following discussion as a simple box identified by its first initial (1, 2, G, C, D, R and E). This is also the way each block is represented in the MPX G2 Routing Map display. MPX G2 inputs and outputs are represented by the letters I and O.

Active Effects are represented (here and in the Routing Map) by upper case letters and numbers.

Inactive Effects are represented (here and in the Routing Map) by lower case letters and small numbers.

Insert Sends and Returns are not shown in the Routing Map, but they are always located between the Gain block and any blocks that follow it.

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How to Change Routing

Connections

How to Change Routing

Options

The routing page lets you alter the connections between the inputs of the selected block and the outputs of the blocks in front of it. It is easy to think of these connections as patch cords connecting the different blocks. There are five possible connections for the inputs of any block.

On the Routing Map, use the < and > buttons to select any upper case letter. (Lower case letters indicate inactive effects, which cannot be edited.) Use the knob to set your connection choice.

The signal path within the MPX G2 can be split into two parallel stereo paths, and once split, the split paths can be merged together again. The split paths are referred to as Upper and Lower. The Routing Map options allow you to choose where to split and merge the path and to place effect blocks on either the upper or lower paths. The following examples show four general configurations: a path with no split, a split pre-gain path, a split post-gain path, and a parallel path around the pre and post paths.

Press Options to determine the

routing configurations for all

blocks. Press Options again to

return to the Routing Map.

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All seven effects are on the upper path.

The pre-gain path is split at the input and merged at the Gain effect.

The post-gain path is split at the Chorus effect and merged at the EQ effect.

Splitting the path at the input and merging it at the outputs creates a separate path in parallel with the pregain and post-gain paths.

To change the routing, from the Routing Map, press Options. Use the < and > buttons to select individual blocks. Use the knob to change the configuration.

Note that the MPX G2 will only display the routing options that are available in the current configuration. For example, if all seven blocks are on the upper path, the only available option will be Split. The next block downstream from a Split will have Upper, Lower, and Merge available as options.

Editing

In the following examples we’ve selected three presets that demonstrate creative applications of the routing and connection capabilities of the MPX G2.

Example 1: Program 198 Cordovox

Cordovox Routing Map

(Stand Alone)

Routing Examples

This program produces the sound of a vintage Cordovox rotary speaker. The Cordovox is a speaker cabinet containing a fixed 8-inch speaker mounted behind a rotating baffle. It projects sound out of the sides and top of the cabinet, not the front. The baffle can rotate at either fast or slow speeds. The transition time between the different rates is quite long. The characteristic swirling sound it produces is the result of doppler and panning effects combined with the limited bandwidth of the small, easy-to-distort speaker and the tone qualities of the amplifier used to drive the Cordovox cabinet.

In this program, the guitar is first routed through the Gain block, which uses the Preamp to mimic the amp and speaker characteristics. The output of the Preamp is connected to the Chorus block. The Stereo Chorus produces the doppler portions of the overall sound. The Chorus block option is set to Split, creating two parallel audio paths. Effect 1 and Effect 2 are placed on these lower and upper paths, and each is loaded with an Auto Panner effect.

Effect 2 is connected to the left output of the Chorus block and Effect 1 is connected to the right output. Each Auto Panner “sees” a different input signal and, together they produce the complex panning dynamics required to simulate the complex stereo image created by miking the cabinet with left and right microphones. The stereo output of Effect 2 is connected to the Reverb block. The Reverb outputs are summed with the outputs of the Auto Panner in Effect 1 and sent to the Main Outputs.

The A/B controller is patched to the Chorus and Auto Panner rates to allow you to choose between slow and fast speeds.

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Example 2: Program 61 Octave Fuzz (Amp Input + FX Loop)

Octave Fuzz Routing Map

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The Octave Fuzz program combines sub-octave and Octavia-style effects with analog distortion. When connected to the high gain input of a guitar amp, many classic Octave Fuzz effects can be produced.

The Input block option is set to Split, to create two parallel paths. The paths are joined together at the input of the Gain block by setting its option to Merge.

Effect 1 is placed on the lower path and Effect 2 is placed on the upper path. Effect 1 is loaded with Shift(M) and set to produce a fixed pitch shift of one octave down. Effect 2 is loaded with Octabuzz to create the Octavia sound. The use of the split path here allows each effect to be fed into the Gain block without interacting with each other.

In the Gain block, the Distortion effect is set to produce moderate-gain fuzz. A/B is set to turn the ouput of the sub octave on and off.

Editing

Example 3: Program 219 Infinite Echo

Infinite Echo Routing Map

(Stand Alone)

The Infinite Echo program is an analog tape delay effect with auto ducking and infinite feedback. It demonstrates the routing techniques used to create an analog feedback path. This unique feature of the MPX G2 makes it possible to recreate the sound of classic analog delay, chorus and flanger effects.

The guitar signal is routed through the Delay block, which is loaded with Echo(M). The Delay block output is connected to the Gain block. Here the Overdrive effect is used to impart the tone and distortion characteristics of the preamp in a vintage analog echo effect. The Gain block option is set to Split. The upper path is used as the “normal” path to the Main Outputs. The Reverb block is placed on this upper path to add some Hall reverb to the overall sound.

The lower path is used as a feedback path to the Delay block. It consists of a detuner, compressor and volume control, in series. The feedback path is created by setting the Delay effect Fbk Insert parameter to Effect 2. (Be sure to read about this option of the Fbk parameter in the Delay Effects portion of Chapter 7:The Effects and Parameters.) This creates a feedback path that flows from the ouput of Effect 2 back into the Echo(M) effect. The master level of the signal is controlled by the Echo(M) Fbk parameter. All of the blocks between the Delay and Effect 2 blocks are also in the feedback path. Every time the Echo repeats, the signal recirculates through the analog Gain block as well as the Detuner and Compressor.

The volume control is set to Off, so no audio from this path is passed to the Main Outputs. Also, the program is stored with the Insert bypassed to keep the guitar amp preamp out of the feedback loop in Amp Input and FX Loop applications. These tricks allows the program to be used whether connected for Stand Alone, Amp Input Only or Amp Input & FX Loop applications.

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The Overdrive effect produces the analog tone and saturation of tape echo electronics.The Detuner is patched to the Random controller to add pitch fluctuations caused by the wow and flutter typical of tape delay mechanical systems. The Compressor limits the feedback signal so that it never goes completely out of control. As new notes are played, the compressor lowers the feedback level. When the playing stops, the echo repeats begin to swell in volume, but the compressor keeps the swell from going into overload. This allows feedback settings to produce infinite repeat — with the sound evolving on each repeat. A/B is patched to clear the delay.

Notes and Tips on Routing

Patching

1. The number of configurations you can create is huge. The best approach to take is to think about what you want before changing anything.

2. When changing the routing options, work from left to right — from the input block to the output block.

3. The MPX G2 will only display the routing options that are available in the current configuration. For example, if all seven blocks are on the upper path, the only available option will be Split. The next block downstream from a Split will have Upper, Lower, and Merge available as options.

4. The MPX G2 automatically updates the routing options downstream from the selected block as necessary. For example, if you change a Split path to Upper, all of the following blocks will be set to Upper as well.

5. You can also move effects while the Routing Map is displayed: Press and hold Options. After about two seconds, the display will show

Move effect. Continue to hold down the Options button and select the effect block you want to move with the < and > buttons. Turn the knob to drag the selected effect to a new position.

The Edit mode Patching menu allows you to control effect parameters in realtime from a variety of external, MIDI and internal controllers. This important topic deserves its own chapter and is covered in Chapter 4.

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Editing

This Edit menu selection provides controls for making individual adjustments and assignments for each of the MPX G2 internal controllers: Knob, LFO 1, LFO 2, Random, A/B and Env. This section describes controller editing. For detailed information on the controllers themselves, see Chapter 8.

Making controller adjustments is straightforward. The first of the controller selections (Knob) is shown here as an example. (Although each controller has a different set of parameters, the method for selecting and adjusting them is identical.)

Ctls select: > Knob

▲ ▼

Controller selected for adjustment

Use the < and > buttons to step through the available parameters of the selected controller and the knob to adjust controller settings.

Successive screens show each controller parameter and its current value

Ctls:Knob Value < > n

value of displayed controller parameter

Ctls:Knob Low < > n

Use the < and >buttons to move back and forth between the controller selection screen and each of the related parameter screens.

Ctls:Knob High < > n

Controllers

Ctls:Knob Name < CustomAdj

Once you have adjusted the selected controller to your satisfaction, you can step back through the parameter screens, or press Edit to return to the main Edit menu.

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Tempo

The parameters in the Tempo menu: Rate, Source, Beat Value, Tap Average, Tap Source and Source Level, allow you to select the way in which the actual tempo in BPM is determined for each effect.

The MPX G2 gives you unique control over tempo. In the MPX G2, any delay parameter and any time-based modulator (LFO, etc.) can be individually assigned to an absolute time value, or assigned to a tempo value.

For example, a delay time can be set to a specific number of milliseconds, and you will always get a delay of that number of milliseconds, regardless of tempo changes. Alternatively, a delay time can be set to a specific ratio of echoes to beats. Now, if you create a rhythmic echo pattern, delay times will be linked to tempo. When you change tempo, the delay time will change to maintain the same rhythm at the new tempo.

With the LFOs, the rate of change can be an absolute value (such as once per second), or it can be linked to tempo (for example, once every four beats). Any delay parameter or LFO rate can be set to its own individual rhythm, allowing you to set up an effect which will change in a rhythmically interesting way — evolving over time, for example, as opposed to being a mere series of repetitions. Once delays and LFO rates are assigned, tempo rate can be easily changed in a variety of useful ways.

Tempo Rate can be set internally or via MIDI Clock. If Tempo Source is set to Internal, you can dial in any tempo from 41-400 BPM, or you can press the front panel Tap button twice in rhythm to establish the rate you want (allowing you to change tempo on the fly from any mode). You can also have the value of a patch source act as a tap trigger (See Chapter 4: Patching.) or choose to have your tempo transmitted as a MIDI Clock signal to control the tempo of connected MIDI devices. (See Chapter 5: System Controls or Chapter 6: MIDI Operation.) If Source is set to MIDI Clock, MPX G2 tempo will sync to incoming MIDI Clock. Whether tempo is set internally or via MIDI, the front panel Tempo LED will flash at the current rate whenever any delay or LFO rate is set for tempo control.

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Rate

Source

MPX G2 programs can have their own tempo rate settings which are stored with the program. You can override these individual tempo rates with a global tempo rate in the System Setup menu. Tempo is also available as an independent patch source which can control any program parameter. (See Chapter 4: Patching and Chapter 5: System Controls.)

This is the current tempo (in beats per minute). When Source is set to Internal, you can select any rate here from 41 to 400 BPM. The Tempo LED will flash at the new rate. Fractional tempos can be tapped in, but the display will always show the nearest whole number value.

You can choose to have tempo determined by the MPX G2 Tap and Rate controls (Internal), or by MIDI Clock (MIDI). Tap also acts as a reset, setting the downbeat of the LFOs.

Editing

Tempo is expressed in BPM. This control allows you to specify the value of the beat (Eighth, DottedEighth, Quarter, DottedQuarter, 2-126 Beats). If, for example, you select EighthNote here, each Tap will be interpreted as an eighth- note. If you select QuarterNote here, each Tap will be interpreted as an quarter- note. (The factory default is QuarterNote.)

Beat Value Option: Tap Average

Press Options to access the Tap Average control which allows you to average the last 2-8 Taps. Higher numbers mean that the response to incoming Taps will be more gradual, as the tempo will be updated on each Tap with an averaged value.

Assign the Tap function to any of the MPX G2 Internal, MIDI or MIDI controllers(None, Off, On, Knob, Puls1, Tri1, Sine1, Cos1, Puls2, Tri2, Sine2, Cos2, Rand, Env, A/B, ATrg, BTrg, ABTrg, Pedal, Tog1, Tog2, Tog3, Sw1, Sw2, Sw3, CC1-31, CC33-119, Bend, Touch, Vel, Last Note, Low Note, High Note, Tempo, Cmnds, Gate, Trig, LGate, Toe).

Tap Source Option: Tap Source Level

Press Options to access the Tap Source Level control which allows you to set the level (0-127) at which the Tap function is triggered.

Whenever you edit an MPX G2 program, an edit indicator will appear in Program mode, in front of the program name on the display to let you know that the program has been changed since the last store operation.

Beat Value

Press Options to set a Tap Aver- age for more gradual tempo changes when you press Tap.

Tap Source

Press Options to set a Tap Source Level for the Tap function.

Compare

EQ programs

.Splitter AB

In Program mode an edit indicator appears before the program name if the program has been changed since the last store operation.

To hear the original version, press Edit to show the Edit select screen. Turn the knob to display Compare.

Press the > button. If the program has not been edited, the message Pgm is unchanged will be displayed. If the program has been edited, the display will change to show:

Compare:

Edited Original

Use the < and > buttons to select and hear your edited version, or the original. To exit, press Edit to return to the main Edit menu.

NOTE: If you exit with Original selected, you can view the original program parameters, but cannot edit them. To continue editing, exit with Edited selected.

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Soft Row Parameter

Assignment

DataBase Assignments

Parameters that you want to assign to the Soft Row for easy access are selected from the Edit mode Soft Row Assign menu. Use the < and > buttons to select any of the ten Soft Row positions. Turn the knob to scroll through and assign parameters to the selected position. (All parameters in the current program are available for assignment. The example below shows the FX 1 Level parameter assigned to the first position in the Soft Row.)

Edit Soft 1: < > FX 1Level

Your selections are immediately available for quick editing whenever the front panel Soft Row button is pressed.

The MPX G2 allows you to individually tag all 250 programs for easy sorting by Style and/or Effect and Application type. The DataBase controls in the Edit menu let you assign your programs to any (or all) of the categories shown below.

Guitar Style: Acoustic

Bass Blues Clean Country Jazz Rock

Effect type: Chorus

Delay Distortion EQ Flanger Gain Mod Overdrive Phaser Pitch Reverb SpkrSim Wah All

App type: StndAlne

Amp In FX Loop

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When you select DataBase, the display will show a selection like the one below.

The upper line identifies the selection category (guitar style, effect type or application type.

DBase App Type

FX Loop: NO

The lower line shows the Style, Effect or Application type and the current DataBase selection (YES or NO). The selected field will flash to let you know which is selected for changing.

The item on the lower line of the display which is selected for adjustment will flash. Use the < and > buttons to move between the display fields. Use the knob to scroll through all of the Source and Effect types in the left field, and to select YES or NO in the right field.

If you make changes in the DataBase menu, when you exit, the Store LED will

Press Store to update DBase

flash and the following message will be displayed.

Editing

Press Store to save your changes to the DataBase. Press any other button to exit with the DataBase unchanged.

Press Edit to return to the main Edit menu.

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Copy Effect

When you select

Copy Effect, the active effects of the displayed program are lighted. Press any lighted button to initate the copy procedure.

Copy Effect lets you take an Effect from any program in the MPX G2 and copy it into the current program. To use this function, select Copy Effect from the Edit menu. Press the > button and use the knob to display any of the MPX G2 programs. The front panel Effect buttons light to show you which effect blocks are active in the displayed program. Press any lit button to display:

The name of the effect from the displayed program appears on the upper line.

new: Looper old: Echo (S)

The name of the effect you will be replacing in the current program appears on the lower line.

The effect button will flash to show that it is selected for copying. Press it to copy the effect you selected into the current program. If the copy procedure is successful, a confirmation message will be displayed briefly, and the display will revert to showing the Copy Effect selections.

As different effects vary widely in the amount of processing they require, not all combinations of effects are possible. If the current program is already using many effects, or if it is using a combination which requires maximum processing power, a message will be displayed informing you that there are not enough resources to run the effect you have selected. If this happens, you can try copying another effect, or you can copy an inactive effect (by pressing an unlit button running "No Effect") to reduce the processing requirements.

The button will flash.

Once you have selected the specific effect you want to copy, press the effect button again to complete the procedure.

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Note that patches are not copied along with effects. Press Edit to exit to the main Edit menu.

Patching

Patching is the ability to assign a control (Source) to a parameter (Destination). This allows you to alter the value of the parameter by manipulating the control Source. For example, you can select the front panel knob as a Source and an effect's Mix parameter as a Destination. This simple patch will allow you to dynamically alter the mix of the effect whenever you turn the knob.

You can create as many as five patches. You can patch multiple parameters to a single controller, or patch multiple Sources to a single Destination. This chapter contains all the information you need to use the MPX G2 program patching system. Global Patching is described in Chapter 5: System Controls.

MPX G2 Patch controls are accessed in Edit mode.

Patching

In the Edit menu, select Patching to access the patch assigned to a displayed parameter, or to create or alter a patch.

When a Patch is selected, the display will show:

Use the knob to select a Patch number (1-5).

Patch select: < > Patch 1

The numeric display will show the Patch number you have selected.

The Patch number you select in the alphanumeric display will be displayed on the large numeric display as well. This display will remain on as long as you are in the Patching System to identify the currently selected patch.

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Selecting a Source

and Destination

Patch Sources

All Sources are the same in the sense that each generates an output value in the range of 0-127. The output value is used to increase or decrease the setting of a Destination parameter value. Some generate values continuously (they're always "on" ); some generate output based on the position of a particular external MIDI controller, or a footpedal, or footswitch. Some Sources generate output based on aspects of physical performance such as how loud, how fast, or how hard you play. The MPX G2 allows you to choose a Source for each Destination from the following list.

Patch Sources

Ctls: Off

On Knob Puls1 Tri1

LFO1

Sine1 Cos1 Puls2 Tri2

LFO2

Sine2 Cos2 Rand Env InLvl RnLvl A/B ATrg BTrg ABTrg Pedal Tog 1-3 Sw 1-3

Sources are displayed with the prefix Ctls or MIDI. Ctls are internal MPX G2 controllers and rear panel switches and pedal inputs. MIDI sources are all designated MIDI controllers.

MIDI:CC 1

•

• CC31 CC33

•

• CC119 Bend Touch Vel Last Note Low Note High Note Tempo Cmnds Gate Trig LGate Tsw Toe

From the patch number display, press > to step to the patch Source and Destination assignment screen. The display will show the current Source assignment on the top line, and the current Destination assignment on the bottom line. One of the assignments will be flashing to let you know which is selected for adjustment. Use the < and > buttons to select the Source assignment field, and the knob to select a Source from the available list.

Src: Ctls A/B

< > Dst: RvbDecay

In this example, the Source assignment field is selected. The knob will scroll through all of the available Source selections.

From the same screen, use the < and > buttons to select the Destination assignment field, and the knob to select a Destination from the list of parameters of the currently loaded program.

Src: Ctls A/B

< > Dst: RvbDecay

With the Destination assignment field selected, the knob will scroll through all of the parameters of the currently loaded program.

For most applications, that's all there is to setting up a patch. The default patch values will set the controller to match the full range of its travel to the full range of the Destination parameter. To customize your patches, the MPX G2 provides a full set of additional controls. Each of these is described in the following sections.

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Patching

With Src selected, pressing Options will allow you to specify range limits for the controller you have selected. With the following screen displayed, use the < and > buttons to select the Min, Mid or Max field, and the knob to set the value from 0-127. The default settings of Min=0 and Max=127, cause the parameter to be controlled linearly by the controller. Reversing these values (Min=127 and Max=0) will establish inverse control over the parameter. Adding a Mid value allows you to put a pivot point in the patch. All patches have default settings of Min=0, Max=127, with no Mid values assigned.

Src: Min Mid Max > 0 - - - 127

In this example, the underscore indicates that the Min value field is selected. The knob will select values from 0-127. Press > once to select the Mid field, once again to select the Max field.

From the Src Value screen pressing the > button beyond the Max value field selects a reference screen where you can view the actual behavior of the controller you've selected.

With the Max value field selected, pressing > will forward you to the Source Activity screen.

Changing the Range of the Source Controller

With Src selected, press Options to set range limits for the controller you have selected. Press Options again to return to the Patch Source and Destination assignment screen.

Viewing Source Controller Activity

Src: Min Mid Max > 0 - - - 127

Source Val: 0 < > Peak: 0

Press < to return to the Source Value screen.

The Source Activity screen displays the actual activity of the controller you have designated as the Patch Source. Moving the controller will allow you to view the actual controller value in real time (Val). The peak controller value is referenced on the lower line (Peak). This lets you quickly determine the most useful range settings for the controller.

For example, if you have selected Input Level as the Source, and you notice from the Activity screen that the actual level never rises above 100, you can quickly back up to the Src Value screen ( press < once) and set the Max value to 100.

The Source Activity screen lets you reference actual controller values to help you determine the most useful range.

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MIDI Learn — Automatic

Controller Assignment

You can have the MPX G2 automatically recognize a MIDI controller as a patch Source, as well as assigning its MIDI Receive channel to match any controller with the MIDI Learn function.

From the Source Activity screen, press > to access the MIDI Learn screen. With this screen displayed, simply move any active MIDI controller to automatically assign it as the Source for the current patch. The MPX G2 will also recognize the MIDI channel of the controller and reset to that channel for receipt of all incoming MIDI messages.

From the Source Activity screen, press > to access MIDI Learn.

Source Val: 0 < > Peak: 0

Src: MIDI learn < CC1 Ch: 1

Press < to return to the Source Activity screen.

Simply move any attached MIDI controller to have the MPX G2 recognize it as the patch Source and switch to its MIDI channel. This example shows the result of moving a Mod Wheel (CC1) on a connected MIDI device transmitting on Channel 1.

Copying Patches

With Dst selected on the Source and Destination assignment screen, press Options to copy any other patch into the current patch. Your selection will take effect immediately when you exit by pressing Options again.

From the MIDI Learn screen, press < repeatedly to step back through the Patch Source Options. Press Options to return to the Source and Destination assignment screen.

From the Source and Destination assigmment screen, selecting Dst and pressing Options will allow you to copy any other patch to the patch you are working on. With the following screen displayed, use the knob to select patch 15, or — to leave the current patch unchanged.

Dst: Copy patch

– –

In this example, – indicates no patch information is to be copied. Other selections (1-5) will automatically copy information from the indicated patch to the current patch when you exit Options.

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Patching

For most applications, the default full-range Destination values are all you will want, as these allow your selected Source to exert direct control over the full range of parameter values. In other cases, you may want to adjust the Destination values to a more limited range, or establish a nonlinear relationship between the controller and the parameter values.

With a Destination assigned, and the Destination field selected, press > to display the first of two Patch Value screens where you can set Min and Max limits for the selected parameter. With Max selected, press > again to display a Mid Point selection screen where you can set a pivot point within the Destination parameter range to allow nonlinear control. (Note, that a Mid point must be assigned to the Source range, before a Destination Mid point is recognized. See Page 4-3.)

With the Destination assignment field selected, press > to display the Destination value screen.

Src: Ctls A/B

< > Dst: RvbDecay

Min Max

< > 0.14s 26.2s

Changing the Range of the Destination Parameter

Press < to step back to the previous screen.

Use the < and > buttons to select the parameter value fields. Use the knob to adjust the value within the selected field.

With the rightmost field selected, press > again to access the Mid Point selection screen.

Mid

< 0.975

Use the knob to enter a Mid Point value.

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Linear or Nonlinear

Control

Pressing Options from either of the Destination value screens lets you determine the control relationship between the Source and Destination, and clear any or all patches. Your selection will take effect immediately when you press Options again.

From either of the Destination Values screens, pressing Options will allow you to set the control relationship between your Source and Destination, temporarily suspend the current patch, or to clear one or more patches entirely.

Patch Values > Unchanged

"Unchanged" is provided as a selection to allow you to exit Options without altering or erasing any patches. Pressing > will step you forward through the other options.

As selections made in Options will take effect immediately when you press Options to exit, the first screen, "Unchanged", gives you the choice of exiting without altering or erasing any patches.

Press > to step through the other control selections: Normal, Inverted, Mid Peak, and Mid Dip. These let you set the control relationship between the controller and the parameter as described below.

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Patching

Continuing to press > will step you to the Suspend option. Selecting Suspend temporaily suspends the patch until such time as you return to the Patch System Destination Option and select Unsuspend.

Continuing to press > will step you to the options: Clear 1-5, and Clear All. These allow you to select any or all patches to be cleared.

Once you have made any selection, press Options to have your choice take effect and to return to the Source and Destination Assignment screen.

If you create two or more patches with the same Destination, the Destination value will be the sum of all patches assigned to it.

For example, if a Footpedal, and the knob are both assigned to Mstr Mix, the Mix value will be the sum of the patch Destination values for those two patches. When creating multiple patches to the same Destination, you should set the individual Destinations to values which, when added together, are less than or equal to the maximum value for each parameter. The Footpedal and the knob, for example, could each have a maximum value of 50%, or they could be assigned values of 25% and 75%, 60% and 40%, etc.

When the sum of multiple patched parameter Destination values is greater than the maximum value of the parameter, the parameter value will remain at maximum until the sum of the patches falls below it.

Suspending and Clearing Patches

Multiple Patches with the Same Destination

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4-8

System Controls

The System menus shown below provide access to all of the controls which affect overall operation of the MPX G2, such as Bypass state, MIDI transmit and receive channels, as well as some unique options that make the MPX G2 adapt to your personal requirements. These controls are each explained in detail in this chapter, in the order in which they are displayed in System mode.

Press System to enter the System menu, and use the knob to select the particular menu you want. With the menu of your choice displayed (Audio, Modes, etc.), use the < and > buttons to enter the submenu and select parameters, and the knob to adjust parameter values. When you're finished making adjustments within any menu, press System to return to the main System menu, or press the < and > buttons to select another control from the same menu.

System Controls

The System Menus

The Audio menu allows you to change the settings of controls which affect the MPX G2 audio output characteristics.

The Soft Sat control puts an analog soft-knee limiter in front of the input of the MPX G2 A/D converters. This control essentially allows you to trade the harshness of digital distortion for a softer, analog version. The harshness associated with A/D overload at signal levels above -3dBfs is reduced. Increased analog distortion will occur in the range of -3dBfs to 0dBfs. The available settings are On and Off.

In Output Mode, select Stereo or Mono as the output mode of the MPX G2.

Audio Controls

Soft Sat

Output Mode

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Modes

Pgm Load

Mix

The MPX G2 Modes menu allows you to specify certain system-wide parameters and modes of operation for convenience. Each of these is described in this section.

Pgm Load allows you to choose whether programs will be loaded manually or automatically.

Selecting Manual allows you to scroll through programs in Program mode, viewing them according to the DataBase criteria you've selected. Programs which are not loaded are identified by an asterisk (✱) preceding the displayed name, and flashing of the Program button LED. Press Program to load the displayed program.

Selecting Auto (the default setting) will cause programs to be loaded automatically following a brief timeout whenever they are selected in Program mode.

Each MPX G2 program has its own Post Mix and Level parameters, as well as individual mix and level settings for each Effect. These settings are stored as integral parts of the program. The Mix parameter allows you to select Program, to have each program load with its own Mix setting, or Global which allows any program Mix setting to become the global setting for all subsequently loaded programs.

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Pgm Bypass

Tempo Mode

Pgm Bypass allows you to determine the behavior of the MPX G2 during the

transition when a new program is loaded. The choices available are: All Mute or Bypass.

The MPX G2 gives you an exciting approach to working with delay times and modulation parameters. You can set these parameters in beats, allowing you to control your programs in a completely musical way. Each MPX G2 program has its own Tempo parameters, with tempo settings stored as an integral part of the program. These include Tempo Rate, Tempo Source (Internal or MIDI), Beat Value and Tap Source. The Global setting here allows you to override individual Tempo Rate settings with a global value which can then be changed on the fly.

When shipped, the MPX G2 has the Tempo Mode set to Program, with each program driven by its own stored tempo rate. To change to a global tempo rate, select Global here.

Whether Tempo Mode is set to Global or Program, you can set a new tempo rate by pressing the front panel Tap button twice. Alternatively, you can choose to have tempo set automatically from incoming MIDI clock. The rate you tap, or the MIDI tempo, will become the global setting.

For more information about working with the tempo parameters, see Chapter 3: Editing.

System Controls

The MPX G2 provides a memory protection feature to prevent accidental overwriting of your stored programs. When this control is set to On, attempting to store a program will cause the Store process to abort, and an error message to be displayed. To enable the Store function, select Off. (This is the default setting.)

Option: StorePrompt

To have the MPX G2 warn you whenever loading a new program would erase changes you have made but have not saved, press Options and set StorePrompt to On.

This control allows you to adjust the brightness of the alphanumeric display along a range of 0-15.

The setting of Sleep mode determines the behavior of the MPX G2 when it is left idle. When it is on, a set of messages is cycled across the display. Like a computer screen saver, any activity on any panel control will automatically return the MPX G2 to normal operation. When shipped, Sleep is set to Off. You can change this mode to display general Help messages.

Memory Protect

Press Options to

set StorePrompt On or Off. Press Options again to exit.

Brightness

Sleep

The Post Bypass parameter allows you to determine the behavior of the MPX G2's post gain effects when the front panel Bypass button is pressed. When the Bypass button is pressed, it will light and a message will be briefly displayed to indicate that Bypass is on. Pressing Bypass again will briefly display the message that Bypass is off, and turn the button light off.

The choices available from the Post Bypass Mode menu are:

Bypass: Completely bypasses the post gain effects, passing

unprocessed audio directly through to the outputs. (This is the default setting.)

All Mute: Mutes both the input and the output signal, giving

complete silence.

Input Mute: Mutes the input to the post gain effects, allowing the tail

of the effect to ring out.

Disabled: Post gain effects are not changed when Bypass is

pressed.

Post Bypass

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Send Bypass

Insert

The SendBypass parameter allows you to set the bypass behavior of the pregain path (everything between the Guitar Input and the Insert Send jack) when the front panel Bypass button is pressed. The choices are:

Disabled: Bypass has no effect on the pre-gain path.

Bypass: An internal relay bypasses the pre-gain path with an analog

"straight wire" between the Guitar Input and the Send jack. (This is the default setting.)

Insert Mute: Bypass bypasses the pre-gain path with an analog "straight wire"

between the Guitar Input and the Send jack. Insert Mute mutes the pre-gain path after the Send and bypasses

the Insert Return jacks. This allows the Insert button to be used as a preamp bypass when the MPX G2 is connected to a guitar

amp input and its effects loop.

For maximum flexibility when connecting other gear to the G2 via the Insert Send and Return jacks, three Insert Modes are provided: FX Loop, Mix and Parallel.

FX Loop allows gear to be connected in series between the pre-gain and postgain paths. This is the most useful setting when the MPX G2 is used with a guitar amp that has an effects loop, when an external processor is connected to the MPX G2, or whenthe MPX G2 is used as a stand alone preamp with effects. This is the default setting.

In this mode, signals inserted into the MPX G2 rear panel Return jack(s) are passed through a level control, a selectable analog speaker simulator, and then routed (via 24-bit A/D converters) into the post-gain DSP path. In the MPX G2 Effect Order or Routing Map display (Edit mode), the return signal is inserted immediately after the Gain block (G in the display).

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Mix mode allows the return jacks to be used as an analog line mixer. This mode is provided for applications when you want to have additional, unprocessed audio mixed with the outputs of the MPX G2. For example, you would use this mode to Insert the output of a CD or DAT player so you can play along with headphones. Signals inserted into the MPX G2 rear panel Return jack(s) pass through the level control and are mixed with the main and headphone outputs of the MPX G2. Note that when this mode is selected, the Return signals are not processed by the MPX G2.

Parallel mode allows gear to be connected in parallel between the pre- and postgain paths. Use this mode if you want to convert a serial guitar amp effects loop into a parallel loop. The parallel signal path provided by this mode allows the dry analog guitar signal to pass directly to the power amp without running through any converters. Note that when using a parallel effects loop, the Post: Mix parameter (Edit mode) should be set to 100% wet. Signals inserted into the MPX G2 rear panel Return jack(s) are passed through the level control and selectable speaker simulator, then split in parallel — through the post-gain DSP path and mixed with the main and headphone outputs.

System Controls

A set of parameters from System mode, including audio parameters, Modes, MIDI parameters and your current DataBase sorting method are collectively called a "Setup". Five Setups can be stored in the unit, allowing you to quickly reconfigure the MPX G2 at any time. The Setup Load and Setup Store controls allow you to save your current configuration as Setup 1-5 and to reconfigure the MPX G2 to any of these stored states.

When the MPX G2 is shipped (or when you reinitialize the unit) default values are assigned to the Setup parameters. The following table shows these parameters and the factory default setting of each.

Menu Parameter Default Setting

Program Database Sort by Number System Audio Output Mode Analog

Soft Sat Off

Modes Pgm Load Auto

Mix Program Pgm Bypass Bypass Tempo Program MemProtect Off

StorePrompt Off Brightness 9 Sleep Off Post Bypass Bypass Send Bypass Bypass Insert FX Loop

Setup Load and Setup Store

MIDI Pgm Change On

Pgm# Offset 1

Pgm+ Off

Pgm– Off Receive Channel 1 Transmit Channel 1 Pgm Change Mode On Ctl Send None Ctl Smooth 0 MIDI Clock Off Automation Off

Xmit ID 0 SysEx On

Receive ID 0 Soft Thru Off Xmit Speed Fast

Initialize Bypass Patches R1 Tuner Tuner Cal 440.00HzA

Tuner Offset 0 Cents Tuner Bypass Mode Mute

Global Effects Speaker Sim Program

Noise Gate Program Reverb Program Bypass Global

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To load a Setup, select Setup Load from the System Modes menu.

Modes: Setup Load < > (Press Store)

The LED in the Store button will flash. When you press Store the display will show:

Load #n: Setup1

(Press Store)

The upper line of the display shows the Setup number currently selected for loading. Turn the knob to select any Setup number 1-5. Press Store again. The display will show:

New setup loaded

Then the MPX G2 will return to normal operation with the new Setup parameters in effect.

The procedure for storing a new Setup is almost identical, but includes the option of assigning a name to your Setup. Select Setup Store from the System Modes menu.

Modes: Setup Store

< (Press Store)

The LED in the Store button will flash. When you press Store the display will show:

Setup 1

#1: Setup 1

The upper line shows a default Setup name (Setup 1 in our example). The lower line shows a Setup number (1-5) and the current name of that Setup. The < and > buttons move an underbar cursor in the display from each one of the nine characters available for the name, to the # on the bottom line.The knob selects alphanumeric characters at each cursor location.

Use the < and > buttons to move an underbar cursor to anyone of 9 characters available in the upper line for naming, or to the Setup # in the lower line.

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Once you've made changes to the Setup name or selected a new number for it, press Store again. The display will show:

Are you sure?

Yes or No

To store your new Setup, press Yes. To return to the Setup Store display without saving the Setup, press No.

System Controls

This menu contains all of the MPX G2 MIDI controls. The operation of each of these controls is described here. More information on working with MIDI is presented in Chapter 6.

The Pgm Change control allows you to enable or disable the Reception of MIDI Program Change messages. The manner in which the MPX G2 interprets these messages is determined by your selection here.

Off All Program Change and Bank Select messages are ignored. Pgm +

and Pgm - will load the next higher or lower program.

On Program Change messages are recognized.

Options: Pgm# Offset, Pgm+ and Pgm-

Pressing Options from the Pgm Change display allows you to offset MPX G2 program numbers to match another MIDI device.

From Options you can also map Pgm+ and Pgm- controls to load the next higher or lower program. The following sources can be selected to activate these controls:

None Tog 1-3 Sw 1-3 CC 1-119

Select MIDI Channel 1-16, OMNI or Off for receipt of MIDI messages.

MIDI

Program Change

Press Options to access Pgm+ and Pgm- controls and to set a program number offset. Press

Options again to return to the MIDI menu.

Receive

Select MIDI Channel 1-16, or Off for transmission of MIDI messages.

Transmit

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Ctl Send

Ctl Send Selections

None Off On Knob Puls1 Tri1 Sine1 Cos1 Puls2 Tri2 Sine2 Cos2 Rand Env InLvl RnLvl A/B ATrg BTrg

Press Yes in response to the display prompt to reset all patched parameters to their stored values. Press Options again to return to the MIDI Ctl Send menu.

ABTrg Pedal Tog 1-3 Sw 1-3 CC 1-31 CC33-119 Bend Touch Vel Last Note Low Note High Note Tempo Cmnds Gate Trig LGate TSW Toe

Press Options to access MIDI Reset.

If Transmit is active (set to any channel), you can select any of the controllers shown to the side to transmit MIDI controller messages if they are used in a patch.

The display presents two selection fields for mapping the controllers as shown below.

MIDI Ctl Send < > Knob=CC78

Two fields are available for mapping MPX G2 controls to MIDI controllers.

Options: MIDI Reset

The MPX G2 recognizes the “Reset All Controllers” MIDI message. When received, all patched parameters are reset to their stored values. Patched parameters may also be reset from the MPX G2 front panel —in System mode select Ctl Send from the MIDI menu and press Options, then press Yes. (The message will be transmitted from the MPX G2 as well). If you do not want to perform the reset, press Options to exit.

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Ctl Smooth

Clock Send

The Ctl Smooth parameter is an intelligent filter that provides a smoothing function for incoming MIDI data. At 100, the filter is essentially bypassed. With decreasing values, the filter becomes more sluggish in its response to small MIDI controller value changes while maintaining a fast response to large changes. This is useful for smoothly interpolating sparse MIDI controller data. As the value is lowered, the filter's response slows for both large and small MIDI controller value changes.

You can choose to have the MPX G2 transmit MIDI Clock at the current tempo rate by setting this control to On and Tempo Source (in the Edit menu) to Internal. If this control is set to Off, MIDI Clock will not be transmitted.

System Controls

This control is provided for recording changes in a sequence, or for control of one or more additional MPX G2s. Select On to have values resulting from front panel operations sent out as System Exclusive messages.

Options: Automation Xmit ID Press Options to access the Automation Xmit ID screen where you can select 0-126 to identify the target MPX G2s.

This control is provided for communication with one or more additional MPX G2s, or computer editor software. On (the default setting) allows System Exclusive messages to be received by the MPX G2.

Options: SysEx Receive Device ID

Press Options to access the SysEx Receive Device ID screen where you can select 0-126 or All to identify the MPX G2.

Setting this parameter to On will merge data (Program Change, Continuous Controllers and Note messages) received via the MPX G2 MIDI IN port with the messages transmitted through the MIDI OUT port. The default for this parameter is Off.

Automation

Press Options to access Automation

Xmit ID selection. Press

Options again to exit.

SysEx

Press Options to access SysEx Receive

Device ID selection. Press

Options again to exit.

Soft Thru

This control allows you to perform MIDI dumps of Current Pgm, All Programs, Map 1-3, Chain 1-10, Setup 1-5. Select whichever of these categories you want, and press Store.

Options: Xmit Speed Press Options to select one of four MIDI transmission speeds (Slow, Medium Slow, Medium Fast and Fast.)

NOTE: The Device ID used in dumps is the current Receive Device ID.

Dump

Press Options to

select MIDI transmit speed. Press Options again to exit.

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MIDI Maps

Program Change 0-127 can be mapped to any MPX G2 program. Three 128element maps are available. When you select MIDI Maps from the System menu, you can select any one of the three maps and make your selections from screens like the ones shown below.

Pgm Maps select:

< > Map 1

With the map number you want to work with displayed in the lower right of the display, use the < and

> buttons to scroll to the mapping screen.

MIDI Assign Mode

< > Learn

MIDI Assign mode lets you select Learn or Manual. Learn will automatically assign MIDI Program Change messages to any MPX

G2 programs. (This is great for mapping programs to buttons on a MIDI foot controller.)

Manual allows you to "dial in" MIDI Program Change assignments. (This lets you set up MIDI Maps with no MIDI gear connected.)

You can map JamMan controls or the MPX G2 front panel buttons listed, as well as any MPX G2 program to MIDI Program Change messages.

MPX G2 Programs:

Program 1

•

Program 300

JamMan Controls:

Clear Loop

Layer

Replace

Delay

Start/Stop

MPX G2 Controls:

Tap

Bypass

Gain Bypass

FX1 Bypass FX2 Bypass

Chorus Bypass

Delay Bypass

Reverb Bypass

EQ Bypass

Insert Bypass

Toggle A/B

Select this field to display an MPX G2 program, JamMan or front panel controls.

1 G2 Blue < Map 1 Pgm# 1

Select this field to select the MIDI Program Change number you want the displayed program mapped to.

The MIDI Program number will be learned automatically when MIDI Assign Mode is Learn. — Just send a Program Change message from a MIDI controller.

If MIDI Assign Mode is Manual, dial in the MIDI Program number with the knob.

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Once you've created maps, you can make them active by setting the DataBase sorting option to Show Members of MIDI Maps. (Press Program, then press

Options.) Options: Unchanged, Start at n, Clear Map, and Clear n-n

Press Options from either of the Map screens to access an additional set of controls which allow you to quickly alter map assignments.

Unchanged: Selections made in Options take effect immediately on

returning to the Map menu. This selection allows you to enter and exit Options without effecting any change.

Start at n: This control allows you to completely reassign a map,

starting with the program number selected here, and including the next consecutive 127 program numbers.

Clear Map: This control allows you to completely clear all assignments

for the active map.

Clear n-n: This control allows you to completely clear only a specified

section of assignments for the active map.

System Controls

Press Options to access controls to

reassign or clear a map.

The MPX G2 has 10 internal program chains, each made up of ten "links". You can assign any program to any link in the chain with the controls in this menu. A chain can be loaded with a MIDI Program Change message when Members

of Pgm Chains is the Program mode DataBase sorting option. When the Members of Pgm Chains is selected as a DataBase sorting option, use the <

and > buttons (or MIDI Program Change numbers) to select a chain. Use the knob ( or Pgm+/Pgm-) to load programs assigned to the selected chain.

Once a chain is loaded, the source assigned to Pgm+ and Pgm- will load the next higher or lower program in the chain. The screens in the Program Chains menu allow you to select chains, and make chain and link assignments as shown below.

Chain select: < > Chain 1

Assign Chain 1 < > to Pgm# 1

Select either of these two fields to display any MPX G2 program number (and the corresponding program name) on the top line, and the position you want the displayed program to occupy in the chain (Link 1-10) on the bottom line.

With the chain number you want to work with displayed in the lower right of the display, use the knob or the < and > buttons to scroll to the chain assignment screen.

Select the MIDI Program Change number (1-128) that you want to load the chain.

1 G2 Blue < Chain 1 Link 1

Program Chains

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Press Options to access Start at n,

which allows you to quickly configure any 10 consecutively numbered programs as a Chain, and Clear Chain, which removes all assignments from the active Chain.

LexiconMPX G2 User Guide

Options: Unchanged, Start at n, and Clear chain Press Options from any of the Chain screens to access an additional set of controls which allow you to quickly alter chain assignments.

Unchanged: Selections made in Options take effect immediately on

returning to the Chain menu. This selection allows you to enter and exit Options without effecting any change.

Start at n: This control allows you to completely reassign a chain,

starting with the program number selected here, and including the next consecutive nine program numbers. This is particularly useful for creating chains from your own programs.

Clear Chain: This control allows you to completely clear all assignments

for the active chain.

Initialize

Selecting any item in the Initialize menu will restore portions of the MPX G2 to their factory default settings. These controls allow you to perform a complete reset of the unit to its factory defaults, or to reset only selected functions.

For any displayed selection, the initialization procedure is the same. When a selection is displayed, as in the Initialize All example shown below, the Store button LED will flash, indicating that the MPX G2 is armed to perform the reset procedure.

Initialize

All

Select the initialization option you want.

The Store button will flash. Pressing it will display the following message ...

Are you sure?

Yes or No

Press Yes to initialize. Press No to cancel the operation.

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Press Store. The display query "Are you sure?" prompts you to select Yes or No as a response. If you don't want to perform the initialization, press No to cancel the operation. If you press the front panel Yes button in response to this message, the procedure will be performed immediately. The message Init Complete indicates that the procedure has been performed.

Note that the time for reinitialization will vary, with selections including DataBase reset taking more time.

The selections in this menu are as follows:

All: Resets all MPX G2 parameters to their original factory settings.

This will erase all User programs and Setups.

User pgms only: Erases all User programs (program #s 251-300).

System only: Resets all MPX G2 parameters except User programs.

Controllers: Resets the MPX G2 internal controllers (Knob, LFOs, etc.) to their

default settings.

Bypass Patches: Removes any patches made between Bypass buttons and external

controllers.

Global Patches: Clears all global patches.

DataBase: Resets DataBase assignments for all programs.

This will remove DataBase assignments from programs 251-300.

MPXG2/R1: Resets the MPX G2 and any connected MPX R1 to the original factory

settings of all remote parameters such as Bypass Patches, Continuous Controller assignments, etc.

System Controls

This control allows you to clear a single User program, or any number of consecutively numbered User programs.

From the Clear Programs screen, press > to display the following screen.

Clear Programs 251 to 300

Two fields are available for selecting any number of User programs between 251 and 300.

The Store button will flash. Pressing it will display the following message ...

Are you sure?

Yes or No

Press Yes to clear the selected programs. Press No to cancel the operation.

Clear Programs

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The Store button LED will flash, indicating that the MPX G2 is armed to perform the clear procedure. Press Yes to execute the clear operation. Note that this will override the Memory Protect function if it is on.

A displayed message indicates that the clear operation is complete. Press System to return to the main System menu.

Note that if you clear the active program, you can still use it and make modifications to it (including restoring it) until you load another program, at which time the clear action will take effect.

Copy Programs

This control allows you to copy a single program, or any number of consecutively numbered programs into a new location in User memory (program #s 251-300). Selections you make here will overwrite programs currently at the location(s) you designate.

From the Copy Programs screen, press > to display the following screen.

Two fields are available for selecting any number of programs between 1 and

Copy 251 to 300

300.

Starting at: 251

Select the location where you want the first of your selected programs to be placed. The remainder of the programs you have selected will be placed consecutively after this point.

The Store button will flash. Pressing it will display the following message ...

Are you sure?

Yes or No

Press Yes to copy the designated programs into the selected location. Press No to cancel the operation.

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The Store button LED will flash, indicating that the MPX G2 is armed to perform the copy procedure. Press Yes to execute the copy operation. Note that this will override the Memory Protect function if it is on.

A displayed message indicates that the copy operation is complete. Press System to return to the main System menu.

System Controls

Ten global patch assignments are available which allow you to assign an external controller to the MPX G2 Post Mix or Send and Post Level controls, or to individually control any one of the MPX G2 Effect Mix or Level controls. Global patches override, but do not clear, program patches with the same parameter Destination.

From the Global Patches screen, press > to display the following screen.

Options indicators for both the Src and Dst parameters

Select any patch source from the available source list shown here.

Global ■Src: None # 1

Assign a Global Patch number (1-10).

■

Dst: -----------

Use the < and > buttons to select one of the display fields shown above. Use the knob to assign a source, a destination parameter and a patch number.

When you've completed your selections, press System to return to the main System menu.

Options: MIDI Learn and Dst Edit When Global Source is selected, pressing Options accesses a MIDI Learn function which automatically assigns any connected MIDI controller as the Source as soon as the controller is moved. Once you have moved the controller, press Options again to return to the Global Patches display.

When Dst is selected, pressing Options accesses a set of controls which allow you to edit all assigned Destinations.

Select the parameter you want to control with the displayed Global Src.

Global Patches

With Global Src selected, press Options to access MIDI Learn.

With Dst selected, press Options to select Dst editing parameters.

Unchanged: Selections made in Options take effect immediately on

returning to the Global Patches menu. This selection allows you to enter and exit Options without effecting any change.

Clear All: This control allows you clear all Destination assignments.

Mix Params: This control allows you to assign Mix parameters to all

Destinations.

Level Params: This control allows you to assign Level parameters to all

Destinations.

Press Options again to return to the Global Patches display.

JamMan Note

Clear Loop

Layer

Replace

Delay

Start/Stop

Controls for the JamMan Delay effect can also be assigned as Global Patch Destinations.

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Calibrate Pedal This control allows you to achieve full range output of any connected 10k-100k

continuously variable footpedal. From the main System menu, select Calibrate Pedal and press Yes. A display

prompt will allow you to choose to continue the calibration procedure, overwriting any pre-existing pedal settings, or to discontinue the procedure.

Pressing Yes in response to the display prompt displays:

Move pedal from min to max . . .

Move your footpedal from its minimum to its maximum position. 127 should be displayed when you reach the maximum point of footpedal travel.

Press Yes to save the calibrated settings and to return to the System menu. Your settings will be stored as part of the current Setup.

To restrict the active range of a pedal, position the pedal within the desired range, then select Calibrate Pedal and press Yes. When the display prompts you to move the pedal, move it only within the restricted range, then press Yes. Once calibrated, any pedal positions below the range will produce pedal controller values of 0. Positions above the range will produce values of 127.

Bypass Patches

The pedal jack will also work with control voltages as high as 0-10V, or as low as 0-1V When prompted to move the pedal, move the control voltage between its minimum and maximum values, then press Yes. Refer to Chapter 1: Product Overview for pedal wiring information.

You can assign external controllers to activate Master Bypass and or Bypass for any of the seven effect blocks (Gain, Effect1, Effect2, Chorus, Delay, Reverb or EQ) and Insert.

Use the < and > buttons to select the bypass function: Mstr, Pitch, etc. Use the knob to assign the control you want to have activate the selected function. The choice of controllers is:

None (the default setting) Tog 1-3 Sw 1-3 CC 1-31 CC 33-119

5-16

System Controls

Three controls are available here for customizing the MPX G2 Tuner settings:

Cal, Offset and Bypass.

Cal Use this parameter to set the Tuner's "A" pitch. The factory setting is

A=A. If you change this, for example, to A=G, you can tune your guitar down a whole step — but the open strings will still be displayed as E A D G B and E.

Note: If you change this setting, this will also be used for reference in the Diatonic Hmy effect.

Offset You can fine tune the Tuner's "A" pitch over a range of ±50 cents to

match a recording or a non-A440 tuning reference.

Bypass The factory setting of this parameter is Mute which turns off the Send

and Main Outputs while you're tuning. Post Mute mutes only the Main Outputs — dry guitar is sent out the Send while the Tuner is active. All Bypass sends dry guitar out both the Send and Main Outputs while the Tuner is active.

The Global Effects modes provide quick and useful ways of changing the overall behavior of the G2 to fit specific applications. They allow you to choose to make the Speaker Simulator, Noise Gate, Reverb, and Master bypass functions universal or program specific.

In each case, setting the mode to Global lets the current settings override the individual settings stored with each program — a very handy feature if you want to turn the Speaker Simulator off for all programs because you’re playing through a guitar amp and speakers, or if you want to make the Noise Gate active to tame a 200watt amp cranked to 10.

Tuner Mode

Global Effects

When the Speaker Sim, Noise Gate, Reverb and Bypass modes are set to Program, each program will load with its own settings. To audition the programs as they were intended to be heard:

1. Connect the G2 for Stand Alone, Amp Input & Effects Loop or Amp Input Only application.

2. Set Speaker Sim, Noise Gate, Reverb and Bypass modes to Program.

3. Load and listen to the presets for the appropriate application (Amp Input & Effects Loop or Amp Input Only).

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LexiconMPX G2 User Guide

Speaker Sim Mode

Noise Gate Mode

Reverb Mode

When Speaker Sim mode is set to Global, the current settings of the speaker simulator override the settings stored with each program.

If you’re connected to a guitar amp and playing through guitar speakers - you’ll want the Speaker Sim turned off in all programs.

If you’re playing or recording directly into a mixer, you’ll want the Speaker Sim turned on (at least for any programs that use Gain Effects).

When Speaker Sim mode is Global, its settings are not saved with a program when it is stored. To save the settings with a program, the mode must be set to Program.

Setting Noise Gate mode to Global applies the current settings of the Noise Gate to all programs in the MPX G2. In this mode, you can edit the Noise Gate parameters as usual. Note, however, that to save the settings with a program, the mode must be set to Program.

When Reverb mode is set to Global, the reverb settings in the current program override the individual reverb settings stored with each program. This allows you to keep the same reverb while you load different programs. (So, for example, when you get the perfect reverb settings with your amp in a particular club - you don’t have to edit and store the reverb for every program you plan to use that night.)

5-18

Bypass Mode

With Reverb mode set to Global, you can edit reverb parameters as usual — even change algorithms. Note, however, that your reverb settings will not be saved when you store the program. To save reverb settings with a program, the Reverb mode must be set to Program.

With Reverb mode set to Global, the reverb bypass state also becomes global. If you bypass the reverb, it will stay bypassed — even when you load new programs — until you make it active again.

When Bypass mode is set to Global, the current Master bypass state is not changed when a new program is loaded. Once bypassed, the MPX G2 will stay bypassed until you press Bypass again (even when you load new programs). In this mode, the bypass state is not saved with a program when it is stored. To save the state with a program, this mode must be set to Program.

When Bypass mode is set to Program, the Master bypass state stored with a program becomes active when the program is loaded. (Just like the individual effects bypass states, the Master bypass state can be stored with a program.)

MIDI Operation

Most MPX G2 parameters and all programs can be accessed by MIDI. All MIDI applications require the MPX G2 to be connected with one or more MIDI devices with standard MIDI cables via the rear panel MIDI jacks.

MIDI controls, such as Transmit and Receive Channel selection are available in the System mode MIDI menu. All of these controls are described in Chapter 5: System Controls. Several are repeated here for your convenience.

Before using the MPX G2 with other MIDI devices, all devices must be set to the same MIDI channel. To set the MPX G2 to receive MIDI:

1. Set the controller you will be using (keyboard, sequencer, other MPX G2,

etc.) to transmit on any MIDI channel (1-16).

2. On the MPX G2, press System. Use the knob to scroll to the MIDI menu.

Use the < and > buttons to select MIDI Receive.

3. Use the knob to select OFF, 1-16, or OMNI for receipt of MIDI messages.

MIDI Out

MIDI

Foot Controller

Selecting a MIDI Channel

Accessing Programs

MIDI In

Some extremely useful effects can be created by controlling MPX G2 parameters remotely in real time. Almost all of the controllers found on a MIDI keyboard or MIDI foot controller (pitch benders, mod wheels, sliders, switches, breath controllers, foot pedals and footswitches) can be used to adjust MPX G2 parameters. We refer to this real time remote control capability as Dynamic

MIDI. Sending a MIDI Program Change message from the controller will load an MPX

G2 register. If any MIDI sources are active as global or general purpose patches, moving the appropriate control on the controller will cause the patched destination parameter to change. (See Chapter 4: Patching.) If you want to use Dynamic MIDI, but don’t want the MPX G2 to load new registers when you change programs on your controller, set your controller so that it doesn't transmit Program Change messages, or set MPX G2 Pgm Change to Off in the System mode MIDI menu.

JamMan NOTE

When the JamMan effect is loaded (Delay block) and the MIDI Clock

Output parameter (in the System: MIDI menu) is enabled, a MIDI

Start message is sent at the end of the loop definition. A MIDI Stop message is sent when the loop is reset or the MuteS (Start/Stop) parameter is used. (MIDI Stop on mute and MIDI Start on de-mute.)

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MPX G2 User Guide

Controlling MPX G2

Tempo Rate

with MIDI Clock

MIDI Tempo Control

Lexicon

MIDI Out (MIDI Clock)

MIDI In

Edit mode Tempo Source set to MIDI

Using the MPX G2 as a

MIDI Clock Source

MIDI In

MIDI Out

System mode MIDI Clock Send set to On Tempo Rate set in Edit mode or by Tap

6-2

The configuration below shows the MIDI connections for controlling the MPX G2 simultaneously with MIDI Clocks from a sequencer, and messages from another MIDI controller. Note that the controller is set to "local control off" and the sequencer is set to "echo input".

MIDI Operation

MIDI Thru

MIDI In

MIDI Out

MIDI In

Edit mode Tempo Source set to MIDI

Two MPX G2s can be slaved together by connecting a cable from the MIDI OUT jack of the master to the MIDI IN jack of the slave. Additional MPX G2s can be slaved to the master by connecting a cable from the MIDI THRU port of one slave unit to the MIDI IN port of the next unit.

MIDI In

(MIDI Clock)

Slaving two or more MPX G2s

MIDI Out

System mode MIDI Automation set to On

MIDI In

Slave

System mode MIDI SysEx set to On Receive Device ID must match Master Xmit Device ID

Master

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MPX G2 User Guide

Lexicon

Controller Quirks

The Knob,

Footpedal and

Footswitch

as MIDI Controllers

Some synthesizers and controllers cannot send the full range of MIDI program change messages (1-128). Others may appear to be able to send only 32, but actually have a bank mode that does let you send all 128 program change messages. Also, be aware that some MIDI devices use a program numbering system that uses 0-127 instead of 1-128. If in doubt, see the manual for your controller. See also MIDI Pgm Offset on the following page.

If the Knob, footpedal, or footswitch is active in the current program, you can choose to have the MPX G2 send MIDI Controller messages whenever you adjust it. This makes it possible to record real-time control of MPX G2 effects with a MIDI sequencer — a simple but quite powerful way to automate effects.

To send MIDI data from a controller, first create a patch using the controller, then set System mode MIDI Xmit to the desired MIDI Channel. (The default is Channel 1.)

Once a transmit channel has been set, go to System mode MIDI Ctl Send to assign MIDI Controllers. The display will show MPX G2 controllers and parameters in one field, and MIDI controller output selections in another field. (The default assignments are None.)

MIDI Ctl Send

< > Pedal = CC7 Select the MIDI controller

you want to transmit.

Select the MPX G2 control you want to transmit as a MIDI controller.

6-4

The MIDI Controller messages transmitted by MPX G2 controllers can be recorded in any MIDI sequencer. Once recorded, they can be played back to control the MPX G2 (and other MIDI devices) in real time. To control the MPX G2 from recorded controller messages, reassign the patch sources to the controller value that was assigned to Ctl Send in the System MIDI menu.

The procedures for recording footpedal movements on a MIDI sequencer, then using the sequencer to control the MPX G2, are given below as an example:

To transmit pedal moves to the sequencer:

• Create a patch that uses Pedal as a source to control the deisred parameter.

• In the System MIDI menu, select Ctl Send and assign Pedal to any controller (for this example, use CC4.)

To automate the MPX G2 from the sequencer:

• Change the patch source from Pedal to CC4.

MIDI Operation

Reception of MIDI Program Change and Bank Select messages can be selectively enabled/disabled from the System mode MIDI menu. The manner in which the MPX G2 interprets these messages is determined by the value of this parameter as follows:

Pgm Change: Off

All Program Change and Bank select messages are ignored. Pgm+ and Pgm– controllers will load the next higher or lower program in the current bank.

Pgm Change : On

Program Change messages 0-99 are recognized. Program Change messages 100—127 are ignored except when MIDI maps or chains are active.

Pressing Options from the Pgm Change display allows you to select a Pgm# Offset (to allow matching of MPX1 program numbers to another MIDI device) or to map Pgm+ and Pgm– controls to load the next higher or lower program in the current bank.

Controller 32 is used to select Banks. Program memory is organized into three banks as follows:

Program Bank 1 Preset programs 1-100 Program Bank 2 Preset programs 101-200 Program Bank 3 User programs 201-250

Three 128 element MIDI maps are stored internally. Program Change 0-127 can be mapped to any MPX G2 program. When first shipped, the MPX G2 has each map load with the following defaults:

Program Change Messages

Map 1, 2 or 3

MIDI 1 = Program 1

MIDI 128 = Program 128

Pgm+ and Pgm– will load the next higher or lower program in the map.

Any Program Change number can be selected to load any one of ten customized effect “chains.” Once a chain is loaded, effects in the chain are accessed by the controller patched to Pgm + and Pgm – (program increment and program decrement).

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MPX G2 User Guide

Automation

Lexicon

SysEx Automation

Controller Automation

The MPX G2 will transmit SysEx automation messages when the System mode MIDI Automation parameter is set to On. Virtually all changes made by front

panel operations are transmitted as MPX G2 SysEx messages. This is intended primarily for use by editor programs and in configurations where it is desirable for one or more MPX G2s to be slaved to a single MPX G2 acting as a master. The current mode (Program, Edit or System) of the slave does not follow the master, but the actual parameter values do. (SysEx automation can also be stored on a sequencer and replayed in real-time. As a general rule, automating more than two or three SysEx parameter changes at once is not recommended.)

To set up the MPX G2 to receive SysEx automation messages from another MPX G2, or from a computer editor/sequencer, the transmitting and receiving MPX G2s should be set up as follows:

Transmitting MPX G2: System mode MIDI Automation set to On

(Default=Off)

Recieving MPX G2: System mode MIDI SysEx Receive set to On

(Default=On)

The Receive Device ID of the receiving MPX G2, and the Xmit Device ID of the transmitting MPX G2 must match. The Receive Device ID is an Option of the

MIDI SysEx Receive parameter. The Xmit Device ID is an Option of the MIDI Automation parameter.

For applications where it is desirable to "automate" changes made to MPX G2 effects with its own controls ( the Knob, Footpedal or Footswitch), we recommend assigning the controllers to MIDI destinations (see Chapter 5: System Controls MIDI Send) and recording the MPX G2 MIDI output with a MIDI sequencer.

Reset All Controllers

MIDI Clock and

Clock Commands

JamMan NOTE

When the JamMan effect is loaded (Delay block) the loop size will be determined by the Beat Value (number of beats) and the tempo of the incoming MIDI Clock. Like the original JamMan device, only one Tap is required.

6-6

The MPX G2 recognizes the “Reset All Controllers” message. When received, all patched parameters are reset to their stored values, or to the last front paneledited values. Patched parameters may also be reset from the MPX G2 front panel —in System mode select Ctl Send from the MIDI menu and press Options. (The message will be transmitted from the MPX G2 as well).

The MPX G2 recognizes incoming MIDI clock messages when the Edit mode Tempo Source parameter is set to MIDI. Any Delay parameter set to echoes:beat, or any LFO parameter set to cycles:beat, will be synchronized to the tempo of the incoming MIDI clock.

MIDI Clock and Clock Commands (Start, Stop, Continue) are also available as Dynamic MIDI patch sources. The value of MIDI Clock when used as a patch source is a linear scaling of 0 to 127 (0 = 41 BPM and 127 = 400 BPM). The value of Clock Commands when used as a Dynamic MIDI patch source is 1 for START and CONTINUE and 0 for STOP.

MIDI Operation

The following MIDI controllers are available as Dynamic MIDI patch sources:

MIDI Controllers 1-31, 33-119 Continuous or switches: 0–127

Pitch Bend 0=max flat, 64=no bend, 127=max sharp After Touch Channel pressure: 0–127 Velocity Note On velocity value of last received note: 1-127 Last Note Note Number value of last received note: 0-127 High Note Note Number value of highest note when more than one note

is on: 0-127. (Same value as Last Note when only one note is on.)

Low Note Note Number value of lowest note when more than one note is

on: 0–127. (Same value as Last Note when only one note is on.)

Tempo MIDI or internal tempo ranging from 41–400 BPM converted to

a continuous range of 0–127.

Clock Commands MIDI Clock commands received as a switch: Start and Con-

tinue=127, Stop=0

Gate Generates 127 when any note is on and 0 when all notes are

released. Trigger Generates a pulse (0, 127, 0) everytime a Note On is received. Legato Gate Generates 127 whenever two or more notes are on and 0

whenever fewer than two notes are on. Touch Switch Toggles between 0 and 127 whenever After Touch rises above

32 (allowing After Touch to be used as a latching switch).

These MIDI controllers are also available as threshold sources for several modulation parameters such as LFO1 and 2. They may also be used as a tap source for controlling Tempo.

Dynamic MIDI

The System mode MIDI menu provides a Dump control which allows selection of the following types of bulk data to be dumped directly from the MPX G2 to another MPX G2, or to editor/librarian software. Options allows you to select MIDI transmit speeds of Slow, Medium Slow, Medium Fast or Fast.

Displayed Name Description

CurrentPgm Currently running effect All Programs Map 1-3 Internal Program Change Maps Chain 1-10 Internal Program Chains Setup 1-5 Internal Setups

With the dump type you want displayed, press Store to transmit the data .

Bulk Data Dumps

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MPX G2 User Guide

MIDI Implementation Chart

Lexicon MPX G2 Digital Effects System

Function Transmitted Recognized Remarks

Basic Default 1 1 Channel Changed 1-16 1-16, OMNI

Lexicon

Mode Default Mode 1 Mode 1, 3

Note 0-127 0-127 Last Note, Low Note, Number High Note, LGate, Gate,

Velocity Note ON O O used as controller

After Keys X X TSW and Touch used Touch Channel X O as continuous controllers

Pitch Bend X O used as controller Control 1-119 OX OX 1-119 for MIDI transmit

Change 0, 32 for Bank Select Program O 0-99=1-100 100-127 ignored in

Change Program mode

System Lexicon OX OX product ID=15 Exclusive Real-time X X

Messages X X Altered X

Trig used as controllers

Note OFF X (Off-9n v=0)

Bank Select O O 0-127 recognized for

MIDI maps MIDI maps selectable via Bank Select

non Real-time Device ID Device Inquiry Device ID

System :Song Pos X X Common :Song Sel X X

System :Clock OX OX Real Time :Commands X OX START, STOP and CON-

Aux :Local ON/OFF X X Messages :All Notes OFF X O

Notes

:Tune X X

TINUE are patchable as a switch: START/CONTINUE=127; STOP=0

:Active Sense X X :Reset All Controllers OX OX

Mode 1: OMNI ON, POLY Mode 2: OMNI ON, MONO O : Yes OX: Selectable Mode 3: OMNI OFF, POLY Mode 4: OMNI OFF, MONO X : No

6-8

The MPX G2 contains a library of 76 effects, each of which is described in detail in this section.

The effects are organized into seven effect types corresponding to the Effect Selector buttons on the front panel (Gain, Effect1, Effect2, Chorus, Delay, Reverb and EQ). All of the effects available in each category are listed below.

The Effects and Parameters

Gain

Tone Crunch Screamer Overdrive Distortion Preamp SplitPreamp

Effect 1

Detune (M) Detune (S) Detune (D) Shift (M) Shift (S) Shift (D) DiatonicHmy Panner Auto Pan Tremolo (M) Tremolo (S) UniVybe CustomVybe Phaser OrangePhase RedComp BlueComp

DigiDrive1 DigiDrive2 OctaBuzz SweepFilter 1-Band (M) Wah 1 Wah 2 Pedal Wah1 Pedal Wah2 Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol Test Tone Click

Effect 2

Panner Auto Pan Tremolo (M) Tremolo (S) UniVybe CustomVybe Phaser OrangePhase RedComp BlueComp DigiDrive1 DigiDrive2 OctaBuzz

SweepFilter 1-Band (M) Wah 1 Wah 2 Pedal Wah1 Pedal Wah2 Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol Test Tone

Click

Chorus

Chorus Detune (M) Flanger (M) Flanger24 (M) Flanger (S) Rotary Cab Aerosol Orbits Centrifuge1 Centrifuge2 Comb 1 Comb 2 Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol

Lighted effect buttons indicate which effect blocks are active and turned on in the currently loaded program. (Effects can be active, i.e. available for use in a program, but bypassed and, therefore, "off".) To identify the particular effect which is running, press and hold any of the effect buttons. A message informs you if the effect block is active, or not. The name of the particular effect in use in an active block is identified by name.

To access the edit parameters of any active effect, press Edit, then select the effect by pressing the appropriate button. Use the knob and the < and > buttons to select and modify the effect parameters. Press Edit again to return to the Edit menu. See Chapter 3: Editing for more information.

Delay

Delay (M) Delay (S) Delay (D) Echo (M) Echo (S) Echo (D) Looper JamMan Ducker

Reverb

Chamber Hall Plate Ambience Gate

1-Band (M) 2-Band (M) 3-Band (M) 4-Band (M) 1-Band (S) 2-Band (S) 1-Band (D) 2-Band (D) Fc Splitter Crossover Volume (M) Volume (S) Volume (D) PedalVol ExtPedalVol

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MPX G2 User Guide

Lexicon

Notes on

Combining Effects

Notes on

Controlling Effect

Parameters

Different effects require different amounts of MPX G2 processing. The following notes should be kept in mind when creating new combinations of effects in a program.

All Reverb and Gain effects have dedicated processing and can be used in combination with any other effect. (You can always add these to any MPX G2 program.) In addition, the Noise Gate and Speaker Simulator don’t share resources with the effects and are, therefore, always available.

The other effects (Effect1, Effect2, Chorus, Delay and EQ) share processing "steps". The total number of available steps is 190. This means that some combinations of these effects may not be possible –depending on which effects are already loaded.

When you scroll through the effects for a given block, the size (in steps) of each effect is shown in the upper right hand corner of the display. If the effect will fit in the current progam, an asterisk (*) is displayed next to its name and the Effect button will flash rapidly. If the effect will not fit, an “x” is displayed, and the Effect button light will turn off.

When you stop scrolling, a resource usage message is displayed briefly showing how many steps are available and how many steps have been used.

Any effect parameter in the MPX G2 can be patched for real time control. In some cases, audible artifacts may be produced, depending on the particular parameter and the rate and range of control. In many effects, we’ve added additional processing power to parameters that are obvious candidates for drastic dynamic control. These parameters are “interpolated” to produce extremely smooth, noise free control.

7-2

Notes on

the Effect

Descriptions

It is often possible to compensate for a non-interpolated parameter, such as Effect 1 Detune Level, by combining the effect block with one with an interpolated Level parameter, such as Effect 2 Volume.

In the following effect descriptions, a bar showing the processing requirements, in steps, of each effect in relation to the total possible number of steps (190) is shown at the end of each description.

Interpolated parameters are indicated by an asterisk (*) following the parameter name.

Tone

Lo ± 25dB Clean low frequency boost/cut Mid +12/-25dB Clean mid frequency boost/cut Hi ± 25dB Clean high frequency boost/cut InLvl -64 to 0dB Input level (headroom) Level 0dB to 64dB Output level

The Effects and Parameters

Gain Effects

Tone is a set of analog Tone controls which can be used as a clean-boost stomp box in front of your amp, or as a simple clean preamp when the MPX G2 is used without an external guitar amp. When used as a stomp box, Tone can radically alter the sonic character of you guitar amp, providing an alternative channel. When used without an external amp, Tone can sculpt some dramatic clean sounds. Try boosting Lo and Hi while cutting Mid to produce acoustic-like timbres from a single coil neck pickup.

0 190

NO PROCESSING STEPS USED

Crunch

Lo ±25dB Low frequency Drive Mid ±25dB Mid frequency Drive Hi 0-50dB High frequency Drive InLvl -64 to 0dB Input level (Drive sensitivity)

Level 0dB to 64dB Output level

* = Interpolated; ( ) = Option of preceding parameter

Crunch is an overdrive effect

with separate drive controls for low, mid and high frequencies. Designed to be used like a stomp box (in front of your amp), Crunch works well in combination with other pregain effects like wah, phase shift, compression, and octave fuzz.

0 190

NO PROCESSING STEPS USED

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MPX G2 User Guide

Screamer

Screamer is an analog model of a vintage Tube Screamer overdrive (powered by a fresh carbonzinc battery). Care has been taken to make the behavior of this effect accurate both sonically and electronically. The ranges of Drive and Tone match those of the vintage effect and it will push your amp into high gear just like the original. We’ve also added Lo, Mid and Hi tone controls. For truly authentic sounds, leave them set flat (zero), but feel free to dial in some additional colors unobtainable with the original.

0 190

NO PROCESSING STEPS USED

Lexicon

Lo ± 5dB Low frequency boost/cut Mid ±5dB Mid frequency boost/cut Hi 0-5dB High frequency boost Drive 0-40 Amount of overdrive Tone 0-25 High frequency roll-off Level 0dB to 64dB Output level

7-4

* = Interpolated; ( ) = Option of preceding parameter

Overdrive

Lo ± 15dB Low frequency boost/cut Mid ±15dB Mid frequency boost/cut Hi 0-15dB High frequency boost InLvl -64 to 0dB Input level (Drive sensitivity) LoCut 0-20 Pre-Drive low frequency roll off Feel 0-64 Overdrive dynamics Drive 0-40 Amount of overdrive Tone 0-25 High frequency roll-off (Post-Overdrive) Level 0dB to 64dB Output level

The Effects and Parameters

A more aggressive overdrive effect than Screamer, Overdrive is designed to be used as a stomp box — to push a clean amp channel into bluesy overdrive, or to take a high-gain amp channel over the top. Lo, Mid and Hi controls provide a considerable amount of gain.

InLvl determines overall Drive sensitivity. When cranked up, Lo, Mid and Hi behave like individual distortion controls. When throttled back to -15dB or so, Lo, Mid and Hi behave more like traditional EQ controls.

LoCut rolls off low frequencies before they hit the overdrive circuit (and your amp). This can be very useful if your stage sound is muddy and you need to cut through the band.

The Feel parameter is a unique feature of Lexicon’s Dynamic Gain analog alogrithms. In this effect, it mimics the subtle changes in distortion dynamics caused by different power supplies. When set to 0, the amount of compression/distortion produced during the attack of notes is relatively constant. As this value is increased, you’ll notice a difference in the feel of the attack when using overdrive and moderate amounts of distortion. The first attack of a phrase of rapid picking is a bit cleaner and has more bite than those that follow. This mimics the different “power sag” envelopes characteristic of different stomp box power sources. 0 corresponds to the uniform response of an AC adapter (9V). Values 1-32 approximate the increasinglly dynamic responses produced by various batteries — from a fresh alkaline battery (9.3V), to a fresh carbon-zinc battery (9.8V). Values above 32 mimic tube-rectified power supplies.

Tone provides high frequency roll-off after the overdrive stage. Level should be used to compensate for gain added by InLvl, the Tone controls and Drive.

* = Interpolated; ( ) = Option of preceding parameter

0 190

NO PROCESSING STEPS USED

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MPX G2 User Guide

Distortion

Need more than just Overdrive? Distortion provides more than 100dB of analog gain — and it has an additional set of Bass and Treble controls following the distortion stage. Although not based on any particular pedal, this effect has a sonic kinship with several classic distortion pedals and fuzz boxes.

0 190

NO PROCESSING STEPS USED

Preamp and SplitPreamp

Lexicon

Lo -25dB to +18dB Low frequency Drive Mid -25dB to +18dB Mid frequency Drive Hi 0-18dB High frequency Drive Drive 0-50 Amount of distortion Tone 0-25 High frequency roll-off Bass ± 25dB Post-Drive bass control Trebl ± 25dB Post-Drive treble control Level 0dB to 64dB Output level

* = Interpolated; ( ) = Option of preceding parameter

7-6

Lo ± 25dB Low frequency boost/cut Mid ±25dB Mid frequency boost/cut Hi 0-50dB High frequency boost InLvl -64 to 0dB Input level (Drive sensitivity) LoCut 0-20 Pre-Drive low frequency roll off Feel 0-64 Overdrive dynamics Drive 0-60 Amount of overdrive Tone 0-35 High frequency roll-off Bass ± 25dB Post-Drive bass control Trebl ± 25dB Post-Drive treble control Level 0dB to 64dB Output level

* = Interpolated; ( ) = Option of preceding parameter

Unlike the other MPX G2 Gain effects, Preamp was not designed to function as a stomp box to use in front of your amplifier. It is a fully featured, programmable analog guitar preamp. Use Preamp for stand-alone applications (direct recording without an amp, or to drive a power amp and cabs). When using Preamp for direct recording, be sure to turn on the Speaker Simulator (Edit Select, Speaker Sim, Simulator: On).

InLvl (Input Level) determines the amount of clean headroom the preamp has. The setting of this single control will have a great impact on the overall behavior and sound of the preamp. At higher values, the preamp will distort very easily — for example, with a Mid tone control boost of only 5dB. At lower levels, the tone controls behave more like EQ controls — making low, mid and high guitar frequencies louder (or softer) without adding distortion.

The Effects and Parameters

As a general guideline, set InLvl to approximately -15dB when working on clean or crunch sounds. Use higher values when you’re going for more over-the-top distortion.

Be aware that this preamp can produce well over 120dB of analog gain.

Depending on the settings of InLvl and Drive, the three tone controls will behave like EQs or distortion controls. Unlike many preamps, these controls are active — meaning that they can boost the signal (add gain) as well as cut it. Each control can add up to 25dB of gain boost. Pay attention to the total amount of boost — in most cases, a little goes a long way.

The LoCut control is used to roll-off low end before hitting the drive section of the preamp. The higher the value, the fewer low frequencies in the distortion. This control can be helpful in removing “mud” from high gain sounds, allowing them to stand out in a mix.

The Feel parameter is a unique feature of Lexicon’s Dynamic Gain analog alogrithms. In the Preamp effect, Feel is used to model the subtle changes in distortion dynamics caused by different types of power-amp rectifier circuits. When set to zero, the amount of compression/distortion produced during the attack of notes is relatively constant. As this value is increased, you’ll notice a difference in the feel of the attack of notes and chords when using overdrive and moderate amounts of distortion. The first attack of a phrase of rapid picking is a bit cleaner and has more bite than those that follow. This mimics the different “power sag” envelopes that are characteristic of different power amp rectifier circuits. A setting of 0 corresponds to the uniform response of a tight, solid state rectifier cricuit. Values between 1 and 32 produce increasingly dynamic responses - but are generally within the realm of those produced by power amps with solid-state rectifiiers. Values above 32 are more in keeping with the dynamic feel produced by tube -rectified power amps.

Drive sets the amount of overall gain in the preamp. The cleanest sounds are produced with Drive set to 0. Distortion increases as the value of Drive is increased.

Tone is a post-distortion high frequency rolloff control. Use it to control the high frequency harmonics generated by the distortion. As Bass and Treble are also post-distortion, they can further shape the sound by cutting or boosting top and bottom without affecting the distortion.

Level is the master volume for the entire preamp. Use it to compensate for gain cut or boost added by the combination of InLvl, the Tone controls and Drive. When going for high gain sounds, lower the Level control to compensate for increases in InLvl and Drive. A good way to set the Level control is to press the Gain button to bypass the preamp so you can match the Preamp level with the bypass level.

Split Preamp is the same analog effect as Preamp, except that it has a built-in parallel path that feeds the direct, clean guitar to the MPX G2’s post-gain section. This allows you to create programs that have preamp and right channel direct guitar sounds simultaneously.

As with any preamp, a little time taken to learn how the controls interact with one another will pay off when you’re searching for "the sound".

One of the fundamental distinctions between different types of preamps is how clean or dirty it is. This distinction is generally determined by the preamp’s input sensitivity — which roughly translates to “How hard do I have to hit this thing to make it break up?” In most preamps this attribute is fixed for each channel. (The clean channel is less sensitive than the lead channel.)

The tone controls of a preamp’s clean channel generally behave like EQ controls on a mixer. They make changes in what we hear as bright, dark and warm without adding distortion. It’s a different story when you adjust the tone controls of many preamps’ lead channel. On these, the tone controls interact with the gain section and changing the tone settings will often make significant changes to the distortion characteristics of the sound. In the lead channel of many preamps, the Mid control can be used as a distortion control. Turn it up to add more distortion — down to make the sound cleaner.

The analog Preamp effect in the MPX G2 has all of these attributes. Because it is completely programmable, it is not limited to clean or lead channels with fixed input sensitivity. Careful adjustment of its parameters can yield many tonal variations from clean and slinky, to blues overdrive and beyond, to a high gain roar.

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NO PROCESSING STEPS USED

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MPX G2 User Guide

Lexicon

Effect1 and Effect2

Detune (M), Detune (S) and Detune (D)

Detune effects are useful for thickening up sounds by adding delayed/pitch shifted versions of the original source. They can be particularly effective when used to simulate double-tracking. They are also great alternatives to chorus effects as a detuner can add the richness of a chorus effect without the audible sweep caused by the chorus rate. Detuners are also traditionally used to turn a sixstring guitar into a twelve-string, or an in-tune piano into a honky-tonk. The MPX G2 detuners are optimized to provide very fine amounts of pitch shift.

Effect descriptions for all of the effects contained in Effect1 and Effect2 are combined in this section.

Effect1 and Effect2 contain identical effects, except for the first seven effects in Effect1. These are Pitch effects: Detune (M), (S) and (D), Shift (M), (S) and (D) and Diatonic Hmy. In these effects, Tune controls the amount of pitch shift. The Optimize parameter (an option of Tune) allows balancing of any artifacts vs. the amount of delay through the effect. Higher settings of Optimize are good for chords and low notes, lower settings minimize the delay through the effect.

Detune (M) Detune (S)

Detune (D)

Detune (M) is a single-channel

detuner that creates a pair of signals, pitch-shifted up and down from the input. The pair is always mixed together, and presented equally to the outputs.

Detune (S) creates a pair of signals, pitch-shifted up and down from the inputs. The left and right channels are separate.

Detune (D) sums left and right inputs to mono,then creates two pairs of signals, pitch-shifted up and down from the inputs by Tune1 and Tune 2. The first pair goes out the left, the second pair out the right.

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Detune (M)

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Detune (S)

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Detune (D)

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Mix 0-100% Dry/Wet ratio Level Off, -89 to +6dB Amount of effect in the processed signal Tune, Tune1, 2 0-100 Pitch shift (Optimize) 10-60ms (M), (D) An option of Tune 1 — Adjusts the amount of delay in

P Dly 0-70ms (M), (D) Amount of delay before the onset of the effect

As the detune effects use up relatively few processing resources, they can be combined with reverb and many other effects. When creating effects that don’t require pitch shifting by large intervals (semitones) the detuners are the most efficient choice.

* = Interpolated; ( ) = Option of preceding parameter

10-40ms (S) the tuner

0-25ms (S)

Shift (M), Shift (S) and Shift (D)

Shift (M) Shift (S)

Shift (D)

Mix 0-100% Dry/Wet ratio Level Off, -89 to +6dB Amount of effect in the processed signal Tune -4800 to +1900 cents Pitch shift (Optimize) 0-100 Adjusts the amount of delay in the pitch shifter Glide Off, On Coarse, fine resolution of pitch shift

These effects use more processing resources than the detuners. Shift (S) and Shift (D) are among the largest effects in the MPX G2.

The Effects and Parameters

The pitch shift effects are designed to provide both fine (1 cent resolution) and coarse (semitone resolution) pitch shift effects. Use them to create harmonizations, detuning, or special effects. The Tune parameters can be glided smoothly across their entire range. Try controlling Tune with a foot pedal or MIDI controller for “whammy-bar” and pedal steel effects.

Shift (M) is a single-channel pitch shifter.

Shift (S) is a stereo version of Shift (M) with synchronized crossfades.

Shift (D) provides mono input to two independent pitch shifters controlled by Tune1 and Tune 2. The first shifter goes to the left output, the second to the right output.

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Shift (M)

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* = Interpolated; ( ) = Option of preceding parameter

Shift (S)

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Shift (D)

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Lexicon MPX G2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual