Soundcraft Spirit Live 42 User Manual

CONTENTS

Warranty.........................3

Introduction .......................4

Basic Principles of PA Mixing .............5

Installation & Safety Precautions ...........7

Sicherheitshinweise ...............9

Precautions ...................10

Sicurezza ....................11

Precauciones de Seguridad ..........12

Connecting It Up....................13

Wiring It Up ......................14

Getting to Know Your Console ............18

Mono Inputs ...................18

Stereo Inputs ..................21

Group Section..................23

Master Section .................24

Using Your Spirit Live 4 Console ..........26

2

Applications ......................28

Care Of Your Mixer ..................34

Glossary ........................34

Typical Specifications .................36

Dimensions ......................37

System Block Diagram ................38

Panel Layout ......................39

Mark-up Sheets ....................40

Typical Connecting Leads ..............42

USERS GUIDEUSERS GUIDEUSERS GUIDEUSERS GUIDE

24

25

26

1 GRP 2

3 GRP 4

IImmppoorrttaanntt

For your own safety and to avoid invalidation of the warranty please read this

manual carefully before connecting your Mixer and Power Supply Unit for the

first time.

SSaaffeettyy SSyymmbbooll GGuuiiddee

For your own safety and to avoid invalidation of the warranty all text marked with these Symbols should be

read carefully.

CAUTIONS

These must be followed carefully to avoid bodily injury.

WARNINGS

Must be observed to avoid damage to your equipment.

NOTES

Contain important information and useful tips on the

operation of your equipment.

© Soundcraft 1995, 2001
All rights reserved
Parts of the design of this product may be protected by worldwide patents

Part No. ZM0111 Issue 2

Soundcraft is a trading division of Harman Intrnational Industries Ltd. Information in this manual is
subject to change without notice and does not represent a commitment on the part of the vendor.
Soundcraft shall not be liable for any loss or damage whatsoever arising from the use of information
or any error contained in this manual.

No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form
or by any means, electronic, electrical, mechanical, optical, chemical, including photocopying and
recording, for any purpose without the express written permission of Soundcraft.

Harman International Industries Ltd.,
Cranborne House,
Cranborne Road,
Potters Bar,
Hertfordshire,
EN6 3JN,
U.K.

Tel: [phone]
Fax: [phone]

http://www.soundcraft.com

Page 3

WWaarrrraannttyy

1 Soundcraft is a trading division of Harman International Industries Ltd .

End User means the person who first puts the equipment into regular operation.
Dealer means the person other than Soundcraft (if any) from whom the End User purchased

the Equipment, provided such a person is authorised for this purpose by Soundcraft or its
accredited Distributor.

Equipment means the equipment supplied with this manual.

2 If within the period of twelve months from the date of delivery of the Equipment to the End

User it shall prove defective by reason only of faulty materials and/or workmanship to such an
extent that the effectiveness and/or usability thereof is materially affected the Equipment or the
defective component should be returned to the Dealer or to Soundcraft and subject to the
following conditions the Dealer or Soundcraft will repair or replace the defective components.
Any components replaced will become the property of Soundcraft.

3 Any Equipment or component returned will be at the risk of the End User whilst in transit (both

to and from the Dealer or Soundcraft) and postage must be prepaid.

4 This warranty shall only be valid if:

a) the Equipment has been properly installed in accordance with instructions contained in
Soundcrafts manual; and

b) the End User has notified Soundcraft or the Dealer within 14 days of the defect appearing;
and

c) no persons other than authorised representatives of Soundcraft or the Dealer have
effected any replacement of parts maintenance adjustments or repairs to the Equipment; and

d) the End User has used the Equipment only for such purposes as Soundcraft recommends,
with only such operating supplies as meet Soundcrafts specifications and otherwise in all
respects in accordance Soundcrafts recommendations.

5 Defects arising as a result of the following are not covered by this Warranty: faulty or negligent

handling, chemical or electro-chemical or electrical influences, accidental damage, Acts of God,
neglect, deficiency in electrical power, air-conditioning or humidity control.

6 The benefit of this Warranty may not be assigned by the End User.

7 End Users who are consumers should note their rights under this Warranty are in addition to

and do not affect any other rights to which they may be entitled against the seller of the
Equipment.

Page 4

IINNTTRROODDUUCCTTIIOONN

C

ongratulations on your purchase of a SPIRIT LIVE 42mixer. Owning a Soundcraft console
brings you the expertise and support of one of the industrys leading manufacturers and

the results of over 22 years experience supporting some of the biggest names in the business.

Designed by engineers who understand the individual needs of musicians, SPIRIT LIVE 4

2

has been built to the highest standards using quality components and employing automated
assembly techniques beyond the reach of most manufacturers of compact mixers.

A rugged steel chassis is combined with moulded side trims to give protection and distinctive
appearance. Custom moulded controls, designed for the best `feel and visual clarity comple­ment the styling, resulting in a truly professional product which is ideal for both touring and
fixed PA installations.

SPIRIT LIVE 42is available in 12, 16, 24 & 32 channel frame sizes. All frame sizes incorporate
removeable side cheeks to enable the console to be fitted compactly in a flight case.

SPIRIT LIVE 42incorporates circuit technology identical to that used on some of the most
sophisticated Soundcraft consoles. The input channels are able to accept a wide range of
Microphone and Line level signals from separate input sockets. Every channel features a wide
range gain control, Phase switch, 4-band Equalisation with swept Hi and Lo Mid ranges, plus a
Hi-Pass Filter, 6 Auxiliary Sends (2 pre-fade, 2 pre or post and 2 post-fade), PFL(Pre Fade
Listen), Peak LED, Panning to a Stereo Bus and routing in pairs to four Output Groups. Each
channel has a separate Direct Output and is controlled by a high-quality long throw fader. All
input channels may be assigned to a choice of four Mute Groups..

All frame sizes are provided as standard with dedicated stereo inputs. 1 stereo input is
included on the 12 channel frame and 2 stereo inputs on all other frame sizes. Each stereo
input comprises two separate input sections, one provided with comparable facilities to the
mono inputs, and one more basic input for a cassette or CD player which routes to the stereo
mix and two of the Aux outputs only.

The four Output Groups provide submixing to the Mix L/R, either as stereo pairs or as
mono sends to L & R. The Group outputs are available on separate connectors to feed external
equipment directly. Each Group section incorporates matrix sends, PFL monitoring & bargraph
metering. Four external Stereo Return inputs are provided for effects or submixing from exter­nal sources and these route to Mix or to a pair of Groups.

Two Matrix outputs receive sends from each Group or Mix L & R as required.

The Master section provides master level control for the Left, Right, Matrix and Auxiliary
Send buses, with separate AFL monitoring on each Matrix and Auxiliary output.

The Mix L/R and Group outputs all have insert points for the connection of external signal
processing or graphic equalisation.

Comprehensive Talkback facilities are provided, which allow a talkback microphone to be
routed to Mix L/R, Groups and Auxes 1-2 or 3-4. Six 12-segment, 3-colour peak reading LED
bargraph meters provide clear display of Mix L/R, Group and PFL signals. Pressing any PFL or
AFL switch puts the selected signal onto both sides of the headphones output and the L & R
bargraph meters in place of the Mix signal. Two LEDs monitor the status of the console power
supply.

SPIRIT LIVE 42is designed to be as user-friendly as possible, but a few minutes spent read­ing through this manual will help you become familiar with the product away from the pressure
of a live session, and allow you to gain full benefit from the superb performance offered by your
new mixer.

Above all, remember that your SPIRIT mixer is designed to extend your creativity. The
more you explore the controls and the effect they have on the sound output, the more you will
appreciate how you can influence and enhance the final sound.

Page 5

BBAASSIICC PPRRIINNCCIIPPLLEESS OOFF PPAA MMIIXXIINNGG

T

here was a time when the P.A. system and the operator existed only to increase the

overall volume of the performers, so that they could be heard in a large room or
above high ambient noise levels. This just isnt true any more. The sound system and the
sound engineer have become an integral part of the performance, and the artists are
heavily dependent on the operators skill and the quality of the equipment.

The following introduction to the basics of mixing are included for the benefit of
those users who may not have any significant familiarity with sound equipment, and who
are baffled by the endless jargon used by engineers and artists alike.

TThhee MMiixxeerr

As one would expect, the main purpose of the mixer is to combine sounds, but under
precise control. This is why long-throw faders are essential on any professional mixer, to
give a responsive and smooth feel to the operator. The faders provide you with clear
and instinctive control of the final sound balance and like an artist playing an instrument
you should listen to the effect of your fader movements, not look at your hands.

Your SPIRIT LIVE 42mixer accepts a wide range of input signals via the microphone
input, for very low level signals, or a line input, for higher level signals from, for instance,
tape machines, effects processors, etc.

The mixer is split into two sections. The Inputs receive, match and process individ-
ual source signals, and distribute them at precise mix levels to either a stereo Mix output
or to one of the Groups. The Master section allows overall level control of all outputs,
and provides monitoring of the audio signal at many points in the mixer, either on head­phones or meters.

The Equaliser controls are the most flexible and potentially destructive feature of
the mixer. They have a similar effect on the frequency response of the input channel as
the tone controls on a hi-fi system, but with much greater precision, and allow particular
characteristics of the input signal to be emphasised or reduced. It is very important that
you become familiar with the effect each control has on the sound and this is best
achieved by spending time listening to the effect of each control on a well-known track
played through the mixer.

The Auxiliary Sends provide a way of routing the input signals to a number of sec­ondary outputs, for artists foldback, echo units or additional speaker outputs.

The Pan control adjusts the position of the input signal within the stereo mix, and
can be swept from full left, through to full right. This allows particular artists to retain
their correct spatial position within the mix, and can be valuable for live effects.

Pre-Fade-Listen(PFL) allows you to monitor the signal at many points in the mixer.
Pressing any PFL switch places the signal at that particular point onto the headphones
and the right meter, to check the quality of the signal or to pin-point problems. Using
PFL will not affect the signals on the outputs from the desk.

Each mono input channel and the Mix and Group outputs have an Insert `A gauge
jack socket, which is a break point in the signal path. It allows the signal to be taken out
of the mixer, through an external piece of equipment and then back into the mixer
directly after its original exit point. The Insert point is normally bypassed by the `A
gauge jack socket contacts, and is only brought into operation when a plug is inserted.
Typical uses would include Effects Processors, Limiters, additional Equalisers or Delay
units. In addition, each channel has a Direct output which may also be used to feed
external equipment such as multitrack tape machines or effects devices.

Page 6

The terms PRE and POST are often used in the context of Inserts, Equalisers and
Auxiliary Sends, and describe whether that facility is placed before (Pre) or after (Post)
another particular section. This is explained further in the Glossary.

A mixer is often judged, amongst other factors, by the amount of Headroom avail­able. This is a measure of the reserve available to cope with sudden peaks in the input
signal, without distortion caused by Clipping, when the signal becomes so high that it
would exceed the power supply rail voltages and is as a result limited. This commonly
occurs where gain settings are incorrectly set or where sources are improperly matched
to the mixer input. If the source signal is too high, clipping and distortion results. If the
signal is too low it becomes masked by the background noise which is present to some
degree in all mixers. The diagram below illustrates this point.

Clipped

Signal

Noise

If the signal level is too high, clipping distortion
may occur.

Signal

If the signal level is too low it may be masked
by the noise.

Noise

Page 7

IInnssttaallllaattiioonn aanndd SSaaffeettyy PPrreeccaauuttiioonnss

IInnssttaalllliinngg tthhee MMiixxeerr

C

orrect connection and positioning of your mixer is important for successful and trouble­free operation. The following sections are intended to give guidance with cabling, connec-

tions and configuration of your mixer.

o Choose the mains supply for the sound system with care, and do not share sockets or earth-

ing with lighting dimmers.

o Position the mixer where the sound can be heard clearly, preferably within the audience.

o Run audio cables separately from dimmer wiring, using balanced lines wherever possible. If

necessary, cross audio and lighting cables at right angles to minimise the possibility of inter­ference. Keep unbalanced cabling as short as possible.

o Check your cables regularly and label each end for easy identification.

SSAAFFEETTYY PPRREECCAAUUTTIIOONNSS

For your own safety and to avoid invalidation of the warranty

please read this section carefully.

The SPIRIT LIVE 42mixer must only be connected through the

Power Supply supplied.

The wires in the mains lead are coloured in accordance with the following code:

Earth: Green and Yellow (Green/Yellow - US)

Neutral: Blue (White - US)

Live: Brown (Black - US)

As the colours of the wires in the mains lead may not correspond with the coloured markings
identifying the terminals in your plug, proceed as follows:

The wire which is coloured Green and Yellow must be connected to the terminal in the plug
which is marked with the letter E or by the earth symbol.

The wire which is coloured Blue must be connected to the terminal in the plug which is
marked with the letter N.

The wire which is coloured Brown must be connected to the terminal in the plug which is
marked with the letter L.

Ensure that these colour codings are followed carefully in the event of the plug being changed.

To avoid the risk of fire, replace the mains fuse only with the

correct value fuse, as indicated on the power supply.

Page 8

CCAAUUTTIIOONNSS

 Do not install near any heat sources such as radiators, heat resistors, stoves, or other apparatus (including

amplifiers) that produce heat.

 Do not use this apparatus near water.

 Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles

and the point where they exit from the apparatus.

 Only use cables and hardware specified by the manufacturer.

 Unplug this apparatus during lightning storms or when unused for long periods of time.

 Refer all servicing to qualified service personnel.

 It is recommended that all maintenance and service on the product should be carried out by Soundcraft or

its authorised agents. Soundcraft cannot accept any liability whatsoever for any loss or damage caused by
service, maintenance or repair by unauthorised personnel.

WARNINGS

 Read these instructions.

 Keep these instructions.

 Heed all warnings.

 Follow all instructions.

 This unit contains no user serviceable parts. Refer all servicing to a qualified service engineer, through the

appropriate Soundcraft dealer.

 Clean only with a damp cloth.

 DO Install in accordance with the manufacturers instructions.

Page 9

SSIICCHHEERRHHEEIITTSSHHIINNWWEEIISSEE

Das SPIRIT LIVE 42darf nur an das entsprechend mitgelieferte Netzgerät

angeschlossen werden !

Die Verdrahtung der Hauptleitungen stimmt mit folgendem Farbcode überein:

Grün/gelb Gehäuseschutzleiter
Blau Mittelpunktsleiter
Braun Phase

Falls diese Festlegung nicht mit der Belegung der Steckkontakte in der Steckdose übereinstimmt, gehen Sie bitte
folgendermaßen vor:

l Die grün/gelbe Leitung muß an den mit dem Erde-Symbol bzw. Buchstabe E gekennzeichneten Steckkontakt

angeschlossen werden.

l Die braune Leitung ist mit der Anschlußklemme zu belegen, die mit dem Buchstaben L gekennzeichnet ist. An

diesem Pol liegt liegt die Phase an (stromführender Pol).

l Die blaue Leitung ist mit der Anschlußklemme zu belegen, die mit dem Buchstaben N gekennzeichnet ist.

Achten Sie auch bei einem Steckdosenwechsel auf den Farbcode an den Steckkontakten der Steckdose.
Die mitgelieferten Netzgeräte enthalten keine Komponenten, die vom Benutzer gewechselt werden könnten.
Eventuelle Serviceleistungen nur qualifiziertem Fachpersonal oder dem SPIRIT-Fachmann überlassen !

Um die Gefahr eines Elektrobrandes zu verhindern, dürfen nur Hauptsicherungen am

Netzgerät ersetzt werden, wie sie entsprechend auf dem Gerätegehäuse aufgeführt

sind.

WWAARRNNUUNNGGEENN

 Betreiben Sie das Gerät nicht in direkter Nähe von Wärmequellen wie Radiatoren,

Wärmespeichern, Heizkörpern oder anderen Vorrichtungen (inklusive Leistungsverstärkern), die
Wärme produzieren

 Schützen Sie das Gerät vor Feuchtigkeit und betreiben Sie es nicht in der Nähe von fließendem

Wasser.

 Verlegen Sie das Netzkabel so, daß es keinen äußeren Belastungen ausgesetzt ist. Achten Sie

besonders darauf, daß die Stecker nicht gequetscht werden oder an den Netz- bzw.
Gerätebuchsen unter Zug stehen.

 Verwenden Sie ausschließlich vom Hersteller empfohlene Kabel und Hardware.

 Entfernen Sie das Gerät vom Netz im Falle eines Gewitters oder wenn Sie es für längere Zeit nicht

benutzen werden.

 Wenden Sie sich im Servicefall ausschließlich an qualifiziertes Fachpersonal.

 Es wird empfohlen, alle Wartungsarbeiten und Reparaturen direkt von Soundcraft oder einem

autorisierten Vertreter ausführen zu lassen. Soundcraft kann keine Verantwortung für Verluste
oder Schäden in jeglicher Form übernehmen, die aufgrund von Serviceleistungen,
Wartungsarbeiten oder Reparaturen durch unqualifiziertes Personal auftreten.

HHIINNWWEEIISSEE

 Lesen Sie diese Anleitung sorgfältig durch.
 Bewahren Sie diese Anleitung auf.

 Leisten Sie allen Hinweisen in jedem Fall Folge.

 Leisten Sie allen Informationen in dieser Anleitung unbedingt Folge.

 Dieses Gerät enthält keine Bauteile, die vom Anwender ausgetauscht werden können. Wenden Sie

sich im Reparaturfall an Ihren Soundcraft-Händler bzw. an qualifiziertes Fachpersonal.

 Reinigen Sie das Gerät nur mit einem trockenen Tuch.

 FÜHREN SIE die Installation gemäß den Anleitungen des Herstellers durch.

Page 10

PPRREECCAAUUTTIIOONNSS

La console SPIRIT LIVE 42doit impérativement être connectée avec lalimentation

fournie.

Les conducteurs du câble secteur sont identifiés comme suit :

Vert/Jaune Terre
Bleu Neutre
Brun Phase

Pour éviter tout risque dincendie, remplacez le fusible uniquement avec un fusible de la

valeur correcte indiquée sur lalimentation.

PPRREECCAAUUTTIIOONNSS

 N'installez pas l'appareil à proximité de sources de chaleur telles que radiateurs, résistances chauf-

fantes, réchauds ou autres appareils susceptibles de produire de la chaleur (y compris les amplifica­teurs) .

 N'utilisez pas cet appareil près d'un point d'eau.

 Veillez à ce que le cordon d'alimentation ne soit ni écrasé ni pincé, en particulier au niveau de l'ap-

pareil et de la prise secteur murale.

 Veillez à n'utiliser que les câbles, connecteurs et accessoires recommandés par le fabricant.

 Débranchez l'appareil en cas d'orage ou d'inutilisation prolongée.

 Adressez-vous à un technicien qualifié pour toute réparation.

 La maintenance et les réparations doivent être assurées par un revendeur agréé par Soundcraft ou

son distributeur. La garantie ne pourra pas s'appliquer en cas de dommage causé par un réparateur
non agréé.

AAVVEERRTTIISSSSEEMMEENNTTSS

 Lisez attentivement ces instructions.

 Conservez ces instructions

 Tenez compte de ces instructions.

 Suivez toutes les instructions.

 Aucun élément de cet appareil n'est réparable par l'utilisateur. Adressez-vous à un technicien qual-

ifié pour toute réparation par l'intermédiaire du distributeur Soundcraft.

 Nettoyez l'appareil avec un chiffon sec.

 L'installation doit être conforme aux instructions des fabricants.

Page 11

SSIICCUURREEZZZZAA

Il mixer SPIRIT LIVE 42deve essere collegato

allalimentatore in dotazione.

I cavi nella presa sono colorati secondo il seguente codice:

Terra: Verde e Giallo

(Verde/Giallo - US)

Neutro: Blu

(Bianco - US)

Vivo: Marrone

(Nero - US)

Poichè i colori potrebbero non corrispondere a quelli dei terminali nella presa, procedere come segue:

l Il cavo Verde e Giallo va collegato al terminale indicato con E o con il simbolo di terra
l Il cavo Blu va collegato al terminale indicato con N.
l Il cavo Marrone va collegato al terminale indicato con L

Assicurarsi che questi colori siano rispettati in caso di sostituzione della spina.

Per evitare il rischio di incendi sostituire il fusibile solo con uno del valore indicato.

AAVVVVEERRTTEENNZZEE

 Non installare vicino a fonti di calore come radiatori, caloriferi, stufe o altre apparecchiature che

producono calore (amplificatori inclusi).

 Non utilizzare queste apparecchiature vicino all'acqua.

 Non manomettere in alcun modo il cavo di alimentazione.

 Proteggere il cavo da evenutali calpestii ed evitare di strappare il cavo dalla presa.

 Usare solo cavi indicati dal fabbricante.

 Scollegare l'alimentazione durante i temporali o quando l'apparecchio non viene utilizzato per

lunghi periodi di tempo.

 Per l'assistenza rivolgersi solo a personale qualificato.

 Si raccomanda che la manutenzione ed il servizio assistenza sul prodotto siano eseguiti da

Soundcraft o dai suoi distributori autorizzati. Soundcraft non accetta nessuna responsabilita per
alcuna perdita o danno causati da assistenza e riparazioni eseguiti da personale non autorizzato.

AATTTTEENNZZIIOONNEE

 Leggere queste istruzioni.

 Conservare queste istruzioni.

 Fare attenzione a tutte le avvertenze.

 Seguire tutte le istruzioni.

 Questa unita non contiene parti di ricambio. Fare riferimento ai centri di assistenza qualificati attra-

verso il rivenditore Soundcraft autorizzato.

 Pulire solo con un panno morbido ed asciutto.

 Installare seguendo le indicazioni fornite dal costruttore.

Page 12

PPRREECCAAUUCCIIOONNEESS DDEE SSEEGGUURRIIDDAADD

La consola SPIRIT LIVE 42debe ser conectada únicamente a la fuente de alimentación

suministrada.

Los conductores en el terminal de red se encuentran codificados por co-lores del siguiente modo:

Tierra: Verde y Amarillo
Neutro: Azul
Vivo: Marrón

En caso de que los colores de los conductores del terminal de red no coincidan con los colores de las marcas que
identifican los terminales en su enchufe, proceda del siguiente modo:

l El conductor de color verde y amarillo debe conectarse al terminal del enchufe que este marcado con la letra E

o por el símbolo de tierra.

l El conductor de color azul debe conectarse al terminal del enchufe que este marcado con la letra N, o sea, de

color negro.

l El conductor de color marrón debe conectarse al terminal del enchufe que este marcado con la letra L, o sea,

de color rojo.

Asegúrese de seguir cuidadosamente este código de colores en caso de que deba sustituirse el enchufe.

Para evitar riesgos de incendio, al reemplazar un fusible deberá tratar siempre de man-

tener su valor, tal como se indica en la fuente de alimentación.

PPRREECCAAUUCCIIOONNEESS

 No instalar cerca de fuentes de calor, tales como radiadores, resistencias de calor, estufas u otro

aparato emisor de calor (incluyendo amplificadores).

 No usar este aparato cerca del agua.

 Proteger el cable de alimentación para que no sea pisado o pellizcado, especialmente en los conec-

tores y en el punto de la salida del aparato.

 Utilizar solamente cables y accesorios especificados por el fabricante.

 Desconectar este aparato durante tormentas eléctricas o cuando no se vaya a utilizar por un largo

período de tiempo.

 Cualquier reparación tiene que efectuarse por personal cualificado.

 Se recomienda que el mantenimiento y cualquier reparación del producto sea efectuado por

Soundcraft o sus distribuidores autorizados. Soundcraft no aceptará ninguna reclamación por pér­didas o daños causados en mantenimiento, reparaciones u otro servicio efectuado por personas no
autorizadas.

AADDVVEERRTTEENNCCIIAASS

 Lea estas instrucciones atentamente.

 Guarde estas instrucciones para futuras consultas.

 Haga caso de todas las advertencias.

 Siga todas las instrucciones

 Esta unidad no contiene partes reparables por el usuario. Llame al servicio técnico del represen-

tante de Soundcraft en su zona.

 Limpiar solo con un paño húmedo.

 Instalar de acuerdo con las instrucciones del fabricante.

Page 13

CCOONNNNEECCTTIINNGG IITT UUPP

WWIIRRIINNGG IITT UUPP

MMIICC IINNPPUUTT

The mic input accepts XLR-type connectors and is designed to suit a wide range of
BALANCED or UNBALANCED low-level signals, whether from delicate vocals
requiring the best low-noise performance or close-miked drum kits needing maximum
headroom. Professional dynamic, condenser or ribbon mics are best because these
will be LOW IMPEDANCE. While you can use low-cost HIGH IMPEDANCE mics,
you do not get the same degree of immunity to interference on the microphone cable
and as a result the level of background noise may be higher. If you turn the PHAN­TOM POWER on, the socket provides a suitable powering voltage for professional
condenser mics.

DO NOT use unbalanced sources with the phantom power switched on. The

voltage on pins 2 & 3 of the XLR connector may cause serious damage.

The input level is set using the INPUT SENS knob.

The LINE input offers the same gain range as the MIC input, but at a higher input
impedance. This is suitable for most line level sources, and provides the gain needed
for lower level keyboards and high impedance microphones.

WARNING - Start with the INPUT SENS knob at the 0 position when

plugging high level sources into the LINE input to avoid overloading the

input channel or giving you a very loud surprise!

LLIINNEE IINNPPUUTT

Accepts 3-pole `A gauge jacks, or 2-pole mono jacks which will automatically
ground the cold input. Use this input for sources other than mics, such as keyboards,
drum machines, synths, tape machines or guitars. The input is BALANCED for low
noise and immunity from interference, but you can use UNBALANCED sources by
wiring up the jacks as shown, although you should then keep cable lengths as short as
possible to minimise interference pick-up on the cable. Refer to the section How to
Prevent Interference later in this manual. Note that the ring must be grounded if the
source is unbalanced. Set the input level using the INPUT SENS knob, starting with
the knob turned fully anticlockwise. Plugging into the LINE input automatically cuts off
the MIC input.

IINNSSEERRTT PPOOIINNTT

The unbalanced, pre-EQ insert point is a break in the channel signal path, allowing
limiters, compressors, special EQ or other signal processing units to be added in the
signal path. The Insert is a 3-pole A gauge jack socket which is normally bypassed.
When a jack is inserted, the signal path is broken, just before the EQ section.

The signal from the channel appears on the TIP of the plug and is returned on the
RING, with the sleeve as a common ground.

Page 14

2. Hot(+ve)

3. Cold(-ve)

2. Hot(+ve)

Link 3

to 1

Balanced

3 pole Jack

Hot (+ve)

Cold (-ve)

Gnd/Screen

Ring

Ring

Balanced Mic

XLR

1. Screen

Unbalanced Mic

XLR

Unbalanced

3 pole Jack

Signal
Gnd/Screen
Gnd/Screen

Tip

Sleeve

Inserts

Signal Send
Signal Return
Gnd/Screen

Tip

Sleeve

1. Screen