Samson Txm16, TXM20 User Manual

1000 WATT POWERED MIXERS

WITH 24BIT DIGITAL EFFECTS

Powered Mixers

Safety Instructions/Consignes de sécurité/Sicherheitsvorkehrungen

WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. To reduce the hazard of electrical shock, do not remove cover or

back. No user serviceable parts inside. Please refer all servicing to qualified personnel.The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

Important Safety Instructions

1. Please read all instructions before operating the unit.

2. Keep these instructions for future reference.

3. Please heed all safety warnings.

4. Follow manufacturers instructions.

5. Do not use this unit near water or moisture.

6. Clean only with a damp cloth.

7. Do not block any of the ventilation openings. Install in accordance with the manufacturers instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or third prong is provided for your safety. When the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on and pinched particularly at plugs, convenience receptacles and at the point at which they exit from the unit.

11. Unplug this unit during lightning storms or when unused for long periods of time.

12. Refer all servicing to qualified personnel. Servicing is required when the unit has been damaged in any way, such as power supply cord or plug damage, or if liquid has been spilled or objects have fallen into the unit, the unit has been exposed to rain or moisture, does not operate normally, or has been dropped.

ATTENTION: Pour éviter tout risque d’électrocution ou d’incendie, ne pas exposer cet appareil à la pluie ou à l’humidité. Pour éviter tout risque d’électrocution, ne pas ôter le couvercle ou le dos du boîtier. Cet appareil ne contient aucune pièce remplaçable par l'utilisateur. Confiez toutes les réparations à un personnel qualifié. Le signe avec un éclair dans un triangle prévient l’utilisateur de la présence d’une tension dangereuse et non isolée dans l’appareil. Cette tension constitue un risque d’électrocution. Le signe avec un point d’exclamation dans un triangle prévient l’utilisateur d’instructions importantes relatives à l’utilisation et à la maintenance du produit.

Consignes de sécurité importantes

1. Veuillez lire toutes les instructions avant d’utiliser l’appareil.

2. Conserver ces instructions pour toute lecture ultérieure.

3. Lisez avec attention toutes les consignes de sécurité.

4. Suivez les instructions du fabricant.

5. Ne pas utiliser cet appareil près d’une source liquide ou dans un lieu humide.

6. Nettoyez l’appareil uniquement avec un tissu humide.

7. Veillez à ne pas obstruer les fentes prévues pour la ventilation de l’appareil. Installez l’appareil selon les instructions du fabricant.

8. Ne pas installer près d’une source de chaleur (radiateurs, etc.) ou de tout équipement susceptible de générer de la chaleur (amplificateurs de puissance par exemple).

9. Ne pas retirer la terre du cordon secteur ou de la prise murale. Les fiches canadiennes avec polarisation (avec une lame plus large) ne doivent pas être modi fiées. Si votre prise murale ne correspond pas au modèle fourni, consultez votre électricien.

10. Protégez le cordon secteur contre tous les dommages possibles (pincement, tension, torsion,, etc.). Veillez à ce que le cordon secteur soit libre, en particulier à sa sortie du boîtier.

11. Déconnectez l’appareil du secteur en présence d’orage ou lors de périodes d’inutilisation prolongées.

12. Consultez un service de réparation qualifié pour tout dysfonctionnement (dommage sur le cordon secteur, baisse de performances, exposition à la pluie, pro jection liquide dans l’appareil, introduction d’un objet dans le boîtier, etc.).

ACHTUNG: Um die Gefahr eines Brandes oder Stromschlags zu verringern, sollten Sie dieses Gerät weder Regen noch Feuchtigkeit aussetzen.Um die Gefahr eines Stromschlags zu verringern, sollten Sie weder Deckel noch Rückwand des Geräts entfernen. Im Innern befinden sich keine Teile, die vom Anwender gewartet werden können. Überlassen Sie die Wartung qualifiziertem Fachpersonal.Der Blitz mit Pfeilspitze im gleichseitigen Dreieck soll den Anwender vor nichtisolierter “gefährlicher Spannung” im Geräteinnern warnen. Diese Spannung kann so hoch sein, dass die Gefahr eines Stromschlags besteht. Das Ausrufezeichen im gleichseitigen Dreieck soll den Anwender auf wichtige Bedienungs- und Wartungsanleitungen aufmerksam machen, die im mitgelieferten Informationsmaterial näher beschrieben werden.

Wichtige Sicherheitsvorkehrungen

1. Lesen Sie alle Anleitungen, bevor Sie das Gerät in Betrieb nehmen.

2. Bewahren Sie diese Anleitungen für den späteren Gebrauch gut auf.

3. Bitte treffen Sie alle beschriebenen Sicherheitsvorkehrungen.

4. Befolgen Sie die Anleitungen des Herstellers.

5. Benutzen Sie das Gerät nicht in der Nähe von Wasser oder Feuchtigkeit.

6. Verwenden Sie zur Reinigung des Geräts nur ein feuchtes Tuch.

7. Blockieren Sie keine Belüftungsöffnungen. Nehmen Sie den Einbau des Geräts nur entsprechend den Anweisungen des Herstellers vor.

8. Bauen Sie das Gerät nicht in der Nähe von Wärmequellen wie Heizkörpern, Wärmeklappen, Öfen oder anderen Geräten (inklusive Verstärkern) ein, die Hitze erzeugen.

9. Setzen Sie die Sicherheitsfunktion des polarisierten oder geerdeten Steckers nicht außer Kraft. Ein polarisierter Stecker hat zwei flache, unterschiedlich breite Pole. Ein geerdeter Stecker hat zwei flache Pole und einen dritten Erdungsstift. Der breitere Pol oder der dritte Stift dient Ihrer Sicherheit. Wenn der vorhandene Stecker nicht in Ihre Steckdose passt, lassen Sie die veraltete Steckdose von einem Elektriker ersetzen.

10. Schützen Sie das Netzkabel dahingehend, dass niemand darüber laufen und es nicht geknickt werden kann. Achten Sie hierbei besonders auf Netzstecker, Mehrfachsteckdosen und den Kabelanschluss am Gerät.

11. Ziehen Sie den Netzstecker des Geräts bei Gewittern oder längeren Betriebspausen aus der Steckdose.

12. Überlassen Sie die Wartung qualifiziertem Fachpersonal. Eine Wartung ist notwendig, wenn das Gerät auf irgendeine Weise, beispielsweise am Kabel oder Netzstecker beschädigt wurde, oder wenn Flüssigkeiten oder Objekte in das Gerät gelangt sind, es Regen oder Feuchtigkeit ausgesetzt war, nicht mehr wie gewohnt betrieben werden kann oder fallen gelassen wurde.

Instrucciones de seguridad / Istruzioni di Sicurezza

PRECAUCION: Para reducir el riesgo de incendios o descargas, no permita que este aparato quede expuesto a la lluvia o la humedad. Para reducir el riesgo de

descarga eléctrica, nunca quite la tapa ni el chasis. Dentro del aparato no hay piezas susceptibles de ser reparadas por el usuario. Dirija cualquier reparación al servicio técnico oficial. El símbolo del relámpago dentro del triángulo equilátero pretende advertir al usuario de la presencia de “voltajes peligrosos” no aislados dentro de la carcasa del producto, que pueden ser de la magnitud suficiente como para constituir un riesgo de descarga eléctrica a las personas. El símbolo de exclamación dentro del triángulo equilátero quiere advertirle de la existencia de importantes instrucciones de manejo y mantenimiento (reparaciones) en los documentos que se adjuntan con este aparato.

Instrucciones importantes de seguridad

1. Lea todo este manual de instrucciones antes de comenzar a usar la unidad.

2. Conserve estas instrucciones para cualquier consulta en el futuro.

3. Cumpla con todo lo indicado en las precauciones de seguridad.

4. Observe y siga todas las instrucciones del fabricante.

5. Nunca utilice este aparato cerca del agua o en lugares húmedos.

6. Limpie este aparato solo con un trapo suave y ligeramente humedecido.

7. No bloquee ninguna de las aberturas de ventilación. Instale este aparato de acuerdo a las instrucciones del fabricante.

8. No instale este aparato cerca de fuentes de calor como radiadores, calentadores, hornos u otros aparatos (incluyendo amplificadores) que produzcan calor.

9. No anule el sistema de seguridad del enchufe de tipo polarizado o con toma de tierra. Un enchufe polarizado tiene dos bornes, uno más ancho que el otro. Uno con toma de tierra tiene dos bornes normales y un tercero para la conexión a tierra. El borne ancho o el tercero se incluyen como medida de seguridad. Cuando el enchufe no encaje en su salida de corriente, llame a un electricista para que le cambie su salida anticuada.

10. Evite que el cable de corriente quede en una posición en la que pueda ser pisado o aplastado, especialmente en los enchufes, receptáculos y en el punto en el que salen de la unidad.

11. Desconecte de la corriente este aparato durante las tormentas eléctricas o cuando no lo vaya a usar durante un periodo de tiempo largo.

12. Dirija cualquier posible reparación solo al servicio técnico oficial. Deberá hacer que su aparato sea reparado cuando esté dañado de alguna forma, como si el cable de corriente o el enchufe están dañados, o si se han derramado líquidos o se ha introducido algún objeto dentro de la unidad, si esta ha quedado expuesta a la lluvia o la humedad, si no funciona normalmente o si ha caído al suelo.

ATTENZIONE: per ridurre il rischio di incendio o di scariche elettriche, non esponete questo apparecchio a pioggia o umidità. Per ridurre il pericolo di scariche elettriche evitate di rimuoverne il coperchio o il pannello posteriore. Non esistono all'interno dell'apparecchio parti la cui regolazione è a cura dell'utente. Per eventuale assistenza, fate riferimento esclusivamente a personale qualificato. Il fulmine con la punta a freccia all'interno di un triangolo equilatero avvisa l'utente della presenza di "tensioni pericolose" non isolate all'interno dell'apparecchio, tali da costituire un possibile rischio di scariche elettriche dannose per le persone. Il punto esclamativo all'interno di un triangolo equilatero avvisa l'utente della presenza di importanti istruzioni di manutenzione (assistenza) nella documentazione che accompagna il prodotto.

Importanti Istruzioni di Sicurezza

1. Prima di usare l'apparecchio, vi preghiamo di leggerne per intero le istruzioni.

2. Conservate tali istruzioni per una eventuale consultazione futura.

3. Vi preghiamo di rispettare tutte le istruzioni di sicurezza.

4. Seguite tutte le istruzioni del costruttore.

5. Non usate questo apparecchio vicino ad acqua o umidità.

6. Pulite l'apparecchio esclusivamente con un panno asciutto.

7. Evitate di ostruire una qualsiasi delle aperture di ventilazione. Posizionatelo seguendo le istruzioni del costruttore. Non posizionatelo vicino a sorgenti di calore come radiatori, scambiatori di calore, forni o altri apparecchi (amplificatori compresi) in grado di generare calore.

9. Non disattivate la protezione di sicurezza costituita dalla spina polarizzata o dotata di collegamento a terra. Una spina polarizzata è dotata di due spinotti, uno più piccolo ed uno più grande. Una spina dotata di collegamento a terra è dotata di due spinotti più un terzo spinotto di collegamento a terra. Questo terzo spinotto, eventualmente anche più grande, viene fornito per la vostra sicurezza. Se la spina fornita in dotazione non si adatta alla vostra presa, consultate un elettricista per la sostituzione della presa obsoleta.

10. Proteggete il cavo di alimentazione in modo che non sia possibile camminarci sopra né piegarlo, con particolare attenzione alle prese, ai punti di collegamento

e al punto in cui esce dall'apparecchio.

11. Staccate l'apparecchio dalla alimentazione in caso di temporali o tempeste o se non lo usate per un lungo periodo.

12. Per l'assistenza, fate riferimento esclusivamente a personale qualificato. È necessaria l'assistenza se l'apparecchio ha subito un qualsiasi tipo di danno, come danni al cavo o alla spina di alimentazione, nel caso in cui sia stato versato del liquido o siano caduti oggetti al suo interno, sia stato esposto a pioggia o umidità, non funzioni correttamente o sia stato fatto cadere.

Copyright 2006-2007 - Samson Technologies Corp. Printed JAnuary, 2007 v3.0 Samson Technologies Corp. 45 Gilpin Avenue Hauppauge, New York 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 631-784-2201 www.samsontech.com

Table Of Contents

ENGLISH

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

TXM16 and TXM20 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

MONO INPUT CHANNEL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

STEREO INPUT CHANNEL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

24 BIT DIGITAL EFFECT SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Stereo Line Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

38 - AUX 1 - control knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Master Auxiliary Send Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

PHONES and CD/TAPE IN Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

MONO/SUBWOOFER Output Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

MAIN Output Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

POWER AMP SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

TXM16 and TXM20 Input and Output Connections . . . . . . . . . . . . . . . . . . . . . . . .14

REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

SPEAKER CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Operating the TXM16 and TXM20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

USING THE DIGITAL EFFECTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

SENDING AN INDEPENDENT MIX TO THE MONITOR SPEAKERS . . . . . . . . . . . . .19

USING AN EXTERNAL EFFECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

RECORDING YOUR PERFORMANCE FROM THE TXM16 and TXM20 . . . . . . . . . .21

Using the MONO OUTPUT to Drive a Subwoofer System . . . . . . . . . . . . . . . . . . .21

TXM16 and TXM20 System Set-Ups

TXM16 and TXM20 Wiring Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

FRANÇAIS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

TXM16 et TXM20 - Caractéristiques générales . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Réglages et fonctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

SECTION DES VOIES D'ENTRÉE MONO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

SECTION DES VOIES D'ENTRÉE STÉRÉO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

SECTION DES EFFETS NUMÉRIQUES 24 BITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Entrée ligne stéréo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

38 - Bouton AUX 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Section du départ auxiliaire général . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Section de l'embase casque PHONES et de l'entrée CD/TAPE IN . . . . . . . . . . . .34

45 - Bouton PHONES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Section de la sortie MONO/SUBWOOFER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Section de sortie principale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

SECTION D'AMPLIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

TXM16 et TXM20 - Connecteurs d'entrée et de sortie . . . . . . . . . . . . . . . . . . . . . .38

FACE ARRIÈRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

CONNEXION DES ENCEINTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Utilisation des TXM16 et TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

UTILISATION DES EFFETS NUMÉRIQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

POUR ACHEMINER UN MIXAGE INDÉPENDANT AUX RETOURS DE SCÈNE . . .43

UTILISATION D'UN EFFET EXTERNE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

ENREGISTREMENT D'UN CONCERT AVEC LES TXM16 ET TXM20 . . . . . . . . . . . .45

Utilisation de la sortie MONO OUTPUT pour alimenter un Subwoofer . . . . . .45

TXM16 et TXM20 - Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

TXM16 et TXM20 - Guide de câblage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Caractéristiques techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Synoptique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

DEUTSCHE

Einleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

TXM16 und TXM20 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Regler und Funktionen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

MONO-EINGANGSKANALSEKTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

STEREO-EINGANGSKANALSEKTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

24-BIT DIGITALEFFEKTSEKTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Stereo Line-Eingang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

38 - AUX 1 - Drehregler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Master Aux Send-Sektion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

PHONES- und CD/TAPE IN-Sektion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

MONO/SUBWOOFER-Ausgangssektion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

MAIN-Ausgangssektion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

ENDSTUFEN-SEKTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

TXM16 und TXM20 Eingänge und Ausgänge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

RÜCKSEITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

BOXENANSCHLUSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

TXM16 und TXM20 betreiben . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

DIGITALEFFEKTE EINSETZEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

UNABHÄNGIGE MISCHUNG ZU DEN MONITORBOXEN LEITEN . . . . . . . . . . . . . .67

EXTERNEN EFFEKT EINSETZEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

DARBIETUNG ÜBER DEN TXM16 und TXM20 AUFNEHMEN . . . . . . . . . . . . . . . . .69

Subwoofer-System mit MONO-AUSGANG betreiben . . . . . . . . . . . . . . . . . . . . . .69

TXM16 und TXM20 System-Einrichtungen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

TXM16 und TXM20 Verdrahtungsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Technische Daten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Blockdiagramm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

ESPAÑOL

Introducción . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Características del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Controles y funciones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

SECCION DE CANAL DE ENTRADA MONO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

SECCION DE CANAL DE ENTRADA STEREO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

SECCION DE EFECTOS DIGITALES DE 24 BITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Entrada de línea stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

38 - Control AUX 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Sección de envío auxiliar master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Sección PHONES y CD/TAPE IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Sección de salida MONO/SUBWOOFER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Sección de salida PRINCIPAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

SECCION DE ETAPA DE POTENCIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Conexiones de entrada y salida del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . .86

Conexiones de entrada y salida del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . .87

Conexiones de entrada y salida del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . .88

PANEL TRASERO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Conexiones de entrada y salida del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . .89

CONEXION DE ALTAVOCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Manejo del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Manejo del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

USO DE LOS EFECTOS DIGITALES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

ENVIO DE UNA MEZCLA INDEPENDIENTE A LOS MONITORES . . . . . . . . . . . . . .91

Manejo del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

USO DE UN EFECTO EXTERNO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

Manejo del TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

GRABACION DE SU INTERPRETACION DESDE EL TXM16 Y TXM20 . . . . . . . . . . .93

Uso de la salida MONO OUTPUT para dar señal a un sistema Subwoofer . . .93

Configuraciones de sistemas con el TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . .94

Guía de cableado de la TXM16 y TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Especificaciones técnicas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Diagrama de bloques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

ITALIANO

Introduzione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

TXM16 e TXM20 - Caratteristiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

SEZIONE DEGLI INGRESSI DI CANALE MONO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

SEZIONE DEGLI INGRESSI DI CANALE STEREO . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

SEZIONE EFFETTI DIGITALI A 24 BIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

INGRESSI DI LINEA Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

38 - Controllo AUX 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

SEZIONE GENERALE DELLE MANDATE AUSILIARIE . . . . . . . . . . . . . . . . . . . . . . . 105

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

SEZIONE CUFFIE E INGRESSO CD/TAPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

SEZIONE DI USCITA MONO/SUBWOOFER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Sezione delle uscite principali (mAIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

SEZIONE DEL FINALE DI POTENZA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Controlli e Funzioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

SEZIONE DEGLI EQUALIZZATORI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

IL PANNELLO POSTERIORE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

IL COLLEGAMENTO DELLE CASSE ACUSTICHE . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

L'Uso del TXM16 e del TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

L'USO DEGLI EFFETTI DIGITALI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

COME INVIARE UN MIX INDIPENDENTE ALLE CASSE MONITOR . . . . . . . . . . . 115

L'Uso del TXM16 e del TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

L'USO DI UN EFFETTO ESTERNO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

L'Uso del TXM16 e del TXM20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

LA REGISTRAZIONE DELLE ESECUZIONI DAL TXM16 E DAL TXM20 . . . . . . . 117

L'UsO DELL'USCITA MONO PER ALIMENTARE UN SISTEMA DI SUBWOOFER 117

TXM16 e TXM20 - Configurazioni di Sistema . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

TXM16 e TXM20 - Guida al Cablaggio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Specifiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Diagramma a Blocchi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Introduction

Congratulations on your purchase of the Samson TXM16 or TXM20 powered mixer! The TXM16 and TXM20 are sixteen and twenty channel, powered mixers in ergonomically correct, attractively appointed, tabletop enclosures. Both TXM models feature the same massive 1000-watt power amplifier, which is capable of running in 2 x 500-watt stereo, 500-watt Main plus 500-watt monitor, or 1000-watt bridge mono operating modes. To set the overall tonal response of your mix, the TXM mixers feature a Nine-band Stereo Graphic Equalizer for the Main Left and Right outputs, plus a separate Nine-band Graphic Equalizer for your monitor mix. Connecting all your microphones and instruments is simple, with eight mic/line inputs plus four additional stereo channels on the TXM16, and twelve mic/line inputs plus four additional stereo channels on the TXM20. There are also dedicated stereo effects returns for the onboard digital effects. And the effects! You can add one of the TXM16’s 100 dazzling digital studio quality effects, which include Delays, Chorus, Flanging, and of course, lush Reverbs to your vocals or instruments using the onboard 24-bit Multi-Effects Processor. It’s easy to dial up your favorite effects preset with the large seven-segment LED display. Need more effects? The TXM20 employs two onboard 100 24-bit MultiEffects Processors. Plus, the TXM mixers have extensive auxiliary busses allowing you to have complex combinations of effects on all the channels, or two different effects on different groups of channels. The auxiliary buses are also extremely flexible when it comes to monitor mixes. The TXM16 and TXM20 will give you clean, clear sound reproduction thanks to the high quality, low noise microphone preamps, super clean, low impedance mix bus, two on-board 9-band graphic equalizers and the high output/low distortion power amplifier. The units are easy to transport with their compact size and oversized, sure-grip handle. In addition, the TXM16 can be rack mounted using the included eleven-space rack mount kit.

The super-tough steel construction ensures reliable, high quality sound from venue-to-venue and performance-to-performance day in, and night out. Optimized for live sound reinforcement and commercial installations, the TXM16 and TXM20 are ideal mixer and power amp solutions that offer plenty of inputs, sweet sounding effects and big sound in a compact package.

With proper care and adequate air circulation, your TXM mixer will operate trouble free for many years. We recommend you record your serial number in the space provided below for future reference.

Serial number: _________________________

Date of purchase: _______________________

Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping your unit to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON (1-800-372-6766) for a Return Authorization number prior to shipping your unit. Please retain the original packing materials and if possible, return the unit in the original carton and packing materials. If you purchased your Samson prod-

uct outside the United States, please contact your local distributor for warranty information and service.

Also, be sure to check out our website (www.samsontech.com) for complete information about our full product line.

ENGLISH

TXM16 and TXM20 Features

ENGLISH

The Samson TXM16 and TXM20 powered mixers are comprehensive, all-in-one mixer/power amplifier solutions for a variety of live sound applications. Here are some of their main features:

• The TXM16 and TXM20 are sixteen and twenty channel powered mixers in ergonomically correct, table-top enclosures providing easy to see and easy to operate front panel controls. In addition, the TXM16 can be rack mounted using the included eleven-space rack mount kit.

• Both TXM mixers use the same massive 1000-watt

power amplifier section, featuring three modes of operation; 2 x 500-watts Stereo Main, or 500watt Mono Main/500-watt Monitor, or 1000-watts Bridged Mono. And those power ratings are true RMS, measured at full bandwidth.

• Ample inputs, the TXM16 has eight mic/line inputs plus four stereo line inputs, while the TXM20 features twelve mic/line inputs plus four stereo line inputs. Plus dedicated stereo returns for the onboard effects.

• Each of the TXM16 and TXM 20’s mic / line channels feature a convenient Insert Point jack to patch in external effects and a Three-band Equalizer with variable mid-range control enabling you to tailor the tonal response of each input.

• The TXM 16 has three auxiliary sends. Two Aux sends on each channel for building two independent monitor mixes, plus a third EFX send for sending signal to the internal Multi-effects Processor. The TXM 20 has 4 auxiliary sends. One dedicated Aux send for monitors, plus a second Aux send that can be set up to be either a monitor send or an effects send using the Pre/Post switch, and two additional EFX sends for sending to the dual internal multi-effects processors.

• A Stereo 9-band Graphic Equalizer for the Main left and right outputs, plus a Mono 9-band for the Monitor output, allow the TXM mixers to be set-up for maximum gain before feedback.

• Mono/ Subwoofer Output with variable Low-pass Filter.

• The TXM16 has a built-in, 24-bit DSP (Digital Signal Processor) Multi-effects Processor with 100 selectable presets offering dazzling studio quality effects including Reverb, Delay and Chorus and Flanging. The TXM20 feature two 24-bit DSP’s, each with 100 selectable presets of studio quality effects on each input.

• The TXM series mixers feature high-quality, lownoise microphone pre-amplifiers that can accept a signal from most any standard microphone. With the mixer’s XLR connectors, connecting standard low impedance dynamic mics is simple, and condenser microphones are connected easily using the available 48 Volt Phantom Power.

• A convenient Tape/CD Input is provided so you connect a stereo device for accompaniment or background music.

• The brilliant sound quality is achieved thanks to the advanced circuit design, utilizing low-noise operational amplifiers and low impedance busing.

• Durable steel enclosure is road tough insuring reli able performance from night to night and venue to venue.

• The convenient, oversize grip handle make the units easy to carry.

• Three-year extended warranty.

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Controls and Functions

MONO INPUT CHANNEL SECTION

The following section details each part of the TXM16 and TXM20’s INPUT CHANNELS including the 3-BAND EQ, the MONITOR and EFX sends, PAN, GAIN and VOLUME controls.

1 - SIGNAL LED

The TXM16 and TXM20’s MIC/LINE pre-amp also includes a SIGNAL LED which, when illuminated, indicates that the signal is present at the input.

2 - GAIN Control Knob

The TXM16 and TXM20’s pre-amp stage has a variable GAIN control with a range of -6 to -50dB on the MIC input and +14 to -30dB on the LINE input.

3 - LOW CUT Switch

Each of the TXM’s channels include a LOW CUT (or high pass) filter which rolls off the low frequencies from 75Hz and below at the rate of 18dB per octave.

4 - Channel Equalizer

The TXM16 and TXM20 mic/line input channels incorporate a 3-band, swept-mid equalizer allowing you to adjust the high, mid-range, and low frequencies independently on each channel. The frequency centers, range of boost or cut, and equalizer type for each band are described in the following section.

HF (HIGH FREQUENCY) 12kHz +/- 15dB Shelving type

The channel’s HIGH frequency response is flat when the knob is in the “12:00” position. Rotating the knob towards the right will boost the channel's high frequency response at 12 kHz by 15dB, and rotating it towards the left will cut the high frequency by 15dB.

MF (MID FREQUENCY) CUT & BOOST

The MID CUT & BOOST knob is used in conjunction with the MID FREQUENCY knob to create the tonal shape in the mid-range frequency when using the mono channel’s equalizers. You can adjust the frequency on the midrange control with the FREQ knob, and use the MF CUT & BOOST to either boost or cut that frequency by plus or minus 15dB. The channel’s MID frequency response is flat when the MF knob is in the “12:00” position.

FREQ (MID FREQUENCY) Variable 100Hz – 8K

The MID FREQUENCY is a control enabling you enhanced capabilities in the tonal shaping of the input channel signal. Thanks to the MID FREQUENCY control, you have a variable mid-range equalizer, allowing you to pin point the exact frequency you want to boost or cut. The MID SWEEP has a “fixed Q” of two octaves (the amount, or width, of frequencies around the center point that are effected by the MID CUT & BOOST control) and can be set in a range from 100Hz to 8Khz.

LF (LOW FREQUENCY) 80Hz +/- 15dB shelving type

The channel’s LOW frequency response is flat when the

ENGLISH

Controls and Functions

MONO INPUT CHANNEL SECTION - continued

knob is in the “12:00” position. Rotating the knob towards the right will boost the channel's low frequency response at 80 Hertz by 15dB, and rotating it towards the left will cut the frequency by 15dB.

Auxiliary Busses ( 5 - 9 )

ENGLISH

The TXM series include several auxiliary signal paths, or buses, that can be used to create independent mixes for sending to the internal or external effects processors, or to an external monitor system. These buses start by sending the signal from each individual channel, which is set with one of the auxiliary control knobs. Then, the mix of all the channels auxiliary level is ultimately sent to either an internal effects processor, or to an output jack to connect to an external effect or monitor system. To help you control your effects and monitor mixes, the TXM16 has three auxiliary buses, while the TXM20 has four auxiliary buses.

PRE….? POST….? What’s That?

In order to operate your mixer correctly, it is important to understand the concept of PRE and POST fader sends. An auxiliary bus that is set up as PRE Fader routes, or sends, the signal to its output from a point in the channels’ circuit that is electronically before the channel Fader. That means the channel Fader has no effect on the PRE aux level. A Pre Fader send is what you want to use for a monitor mix, so when the level is changed for the mix in the main PA speakers using the channel Fader, the level in the monitor set by the aux control knob remains the same. An auxiliary bus that is set up as POST Fader routes, or sends, the signal to its output from a point in the channels’ circuit that is electronically after the channel Fader. That means that the channel Fader also affects the level of a POST aux send. A POST Aux bus is what you want to use (almost always) for sending to an effects processor, either internal or external. When using the POST aux sends, (while turning the channel Fader up or down) the level of effects will track the channel level correctly.

5 – AUX 1- Pre Fader Send

Each of the TXM16 and TXM20’s Mono Input channels include an AUX 1 send, which controls the amount of that channel’s signal that is sent to the AUX 1 Output. The signal feeding Aux 1 is sent before, or pre, the channel Fader, so the channel Fader has no effect on the Aux 1 level. The Aux 1 buss is usually used to create a separate mix for a floor monitor system.

Note: If the AMP MODE switch is set to either MONO - AUX 1, or AUX 1 - - AUX 2, the signal from AUX 1 bus will be sent through the Master Aux 1 Send and then directly to the internal power amplifier. For more information on the POWER AMP MODE switch, see the section "POWER AMP MODE Switch” on page 12 in this manual.

6 – AUX 2 - Pre Fader Send TXM16 / PRE/POST TXM20

Each of the TXM16 and TXM20’s Mono Input channels include an AUX 2 send, which controls the amount of that channel’s signal that is sent to the AUX 2 Output. On the TXM16, the signal that feeds Aux 2 is sent before, or pre, the channel Fader, so the channel Fader has no effect on the Aux 2 level. On the TXM20, Aux 2 can be configured for pre or post fader send using the PRE/POST switch. The Aux 2 bus is usually used to create a separate mix for a floor monitor system, but you can set the Pre/Post switch on the TXM20 to Post to use the send as en effects bus to an external processor. Note: If the POWER AMP MODE switch is set to AUX 1 - AUX 2, the signal from AUX 2 bus will be sent directly to the internal power amplifier. For more information on the POWER AMP MODE switch, see the section "POWER AMP MODE Switch” on page 12 in this manual.

7 - PRE/POST - switch (TXM20 only)

The PRE/POST switch is used to select the point that the Aux 2 bus uses to send the signal. When the PRE/POST switch is set to PRE, the signal feeding Aux 2 is sent before the fader, so the channel Fader has no effect on that level. This is the normal setting when using Aux 2 as a monitor send. When the PRE/POST switch is set to POST, the signal feeding Aux 2 is sent after the fader, so the channel Fader has an effect on that level, meaning the Aux level tracks up and down with the channel Fader. This is the normal setting for using Aux 2 as an effects send, since when you set the channel louder you normally want the effect to get louder.

NOTE: The channel’s EFX signal is sent to the EFX bus from a location in the signal path after the VOLUME control.

8 – AUX 3/EFX1 - Post Fader Send

The TXM16 and TXM20 provides high quality, 24 Bit digital effects, and the level of effects can be set independently on each channel. The channel’s EFX knob controls the amount of signal that is sent to the EFX bus. The signal of the EFX bus is routed to the DSP EFX section for on-board signal processing. On the TXM20 the EFX1 signal can also be sent to an external effect device connected to the EFX 1 SEND jack located on the front panel jack field.

9 – AUX 4/EFX 2 Effects Send (TXM20 only)

The TXM16 and TXM20 provides high quality, 24 Bit digital effects, and the level of effects can be set independently on each channel. The channel’s EFX (Effects) knob controls the amount of signal that is sent to the EFX bus. The signal of the EFX bus is routed to the DSP EFX section for on-board signal processing. The EFX2 signal can also be sent to an external effect device connected to the EFX 2 SEND jack located on the front panel jack field.

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Controls and Functions

MONO INPUT CHANNEL SECTION - continued

NOTE: The signal feeding EFX1 and EFX2 is sent after the channel Fader (14), so the channel Fader has an effect on that level, meaning the Aux level tracks up and down with the channel Fader. This means that the amount of signal that is sent to the EFFECTS bus will be affected not only by the setting of the EFX knob control, but it will also be affected by the setting of the channel Fader volume con-

trol.

10 - PAN Control

The TXM16 and TXM20’s PAN control is used to place or position the mono signal into the stereo main Left and Right MIX bus. You can create a stereo image by panning some input signals to the left and others to the right. The TXM16 and TXM20’s PAN control is a Power-Pan circuit, which includes a 3dB dip in the center position. This is desirable since there’s a 3dB increase in gain when the mono input signal is heard in both the Left and Right MIX

bus.

11 - MUTE switch

The Mono Input channels feature a large, backlit MUTE switch allowing you to easily turn that channel on or off. When MUTE switch is illuminated, the channel is off, conversely, when the backlight is off, the channel is on.

STEREO INPUT CHANNEL SECTION

ENGLISH

12 - PFL (Pre Fader Listen) switch

The Mono Input channel’s PFL, or Pre Fader Listen switch allows you to listen, or “solo” a channel or group of channels in the headphones. When the PFL switch is pressed down, the channel is assigned to the solo bus and can be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. Since the signal is sent pre fader, you can hear the signal regardless of the position of the channel volume Fader. This allows you to listen to a channel by itself: (let's say) to see if an artist is out of tune, or to cue up a channel without having to play it through the main PA speakers.

13 - PEAK LED

The TXM16 and TXM20’s MIC/LINE pre-amp also includes a PEAK LED which when illuminated, indicates that the signal is peaking or overloading. To reduce distortion, lower the GAIN control to keep this LED from staying on.

14- VOLUME - Fader Level Control

The VOLUME Fader control adjusts the level of each mono input channel.

Controls and Functions

STEREO INPUT CHANNEL SECTION

The TXM16 and TXM20 feature stereo input channels for connected stereo line level devices like keyboards and drum machines, as well as the outputs from effects processors and digital guitar modelers. The TXM 16 has two sets of stereo inputs which make up channels 9/10

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and 11/12, while the TXM20 has four sets of stereo inputs which make up channels 9/10, 11/12, 13/14 and 15/16. The Stereo input channels have a three-band fixed equalizer and AUX and EFX sends and are laid out the same as the mono inputs. The following section details the stereo input controls:

15 – SIGNAL LED

The TXM16 and TXM20’s Stereo Input also includes a SIGNAL LED which, when illuminated, indicates that a signal is present at the input.

16 - GAIN Control

The TXM16 and TXM20’s pre-amp stage has a variable GAIN control with a range of -20 to +20dB on the stereo LINE input.

17 - HIGH/MID/LOW - Channel Equalizer

The TXM16 and TXM20 Stereo input channels feature a 3-band equalizer allowing you to adjust the high, mid, and low frequencies independently on each channel. The stereo channel equalizer is laid out like a mono input on the control panel input strip, but internally, the equalizer is affecting a stereo signal path. The channel’s frequency response is flat when the knobs are in the “12:00” position. Rotating the knob towards the right will boost the corresponding frequency band by 12dB/15dB, and rotating it towards the left will cut the frequency by 12dB/15dB. The frequency centers, range of boost or cut, and equalizer type for each band are as follows:

High: 12kHz +/- 15dB shelving type Mid: 2.5kHz +/- 12dB peaking type Low: 80Hz +/- 15dB shelving type

Auxiliary Busses ( 18 - 22 )

In order to operate your mixer correctly it is important to understand the concept of PRE and POST fader sends. For more information on Pre and Post aux sends, see the previous section “Pre…?, Post?… What’s that?” Located on

page 4 of this manual.

18 – AUX 1- Pre Fader Send

Each of the TXM16 and TXM20’s stereo input channels include an AUX 1 send, which controls the amount of that channel’s signal that is sent to the AUX 1 Output. The signal feeding Aux 1 is sent before, or pre, the channel Fader, so the channel Fader has no effect on the Aux 1 level. The Aux 1 bus is usually used to create a separate mix for a floor monitor system.

Note: If the AMP MODE switch is set to either MONO - AUX 1, or AUX 1 - - AUX 2, the signal from AUX 1 bus will be sent directly to the internal power amplifier. For more information on the AMP MODE switch see the section “Using the AMP MODE Switch” on page 12 in this manual.

19 – AUX 2 - Pre Fader Send TXM16 / PRE/POST TXM20

Each of the TXM16 and TXM20’s stereo input channels include an AUX 2 send, which controls the amount of that channel’s signal that is sent to the AUX 2 Output. On the TXM16, the signal that feeds Aux 2 is sent before, or pre, the channel Fader, so the channel Fader has no effect on the Aux 2 level. On the TXM20, Aux 2 can be configured for pre or post fader send using the PRE/POST switch. The Aux 2 bus is usually used to create a separate mix for a floor monitor system, but you can set the Pre/Post switch on the TXM20 to Post to use the send as an effects bus to an external processor

Note: If the AMP MODE switch is set to AUX 1 - - AUX 2, the signal from AUX 2 bus will be sent directly to the internal power amplifier. For more information on the AMP MODE switch see the section “Using the AMP MODE Switch” on page 12 in this manual.

20 - PRE/POST - switch (TXM20 only)

21 – AUX 3/EFX1 - Post Fader Send

The TXM16 and TXM20 provides high quality, 24 Bit digital effects, and the level of effects can be set independently on each channel. The stereo channel’s EFX knob controls the amount of signal that is sent to the EFX bus. The signal of the EFX bus is routed to the DSP EFX section for onboard signal processing. On the TXM20, the EFX1 signal can also be sent to an external effect device connected to the EXF 1 SEND jack located on the front panel jack field.

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Controls and Functions

STEREO INPUT CHANNEL SECTION - continued

22 – AUX 4/EFX 2 Effects Send (TXM20 only)

The TXM16 and TXM20 provides high quality, 24 Bit digital effects, and the level of effects can be set independently on each channel. The stereo channel’s EFX (Effects) knob controls the amount of signal that is sent to the EFX bus. The signal of the EFX bus is routed to the second DSP EFX section for on-board signal processing. The EFX2 signal can also be sent to an external effect device connected to the EXF 2 SEND jack located on the front panel jack field.

23 - BALANCE - Control

The TXM16 and TXM20’s BALANCE control is used to place, or position, the stereo signal into the main Left and Right stereo mix field. You can create a stereo image by panning some input signals to the left and others to the right.

24 BIT DIGITAL EFFECT SECTION

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24 - MUTE switch

The Stereo Input channels feature a large backlit MUTE switch allowing you to easily turn that channel on or off. When the MUTE switch is illuminated, the channel is off, conversely, when the backlight is off, the channel is on.

25 - PFL (Pre Fader Listen) switch

The Stereo Input channel’s PFL, or Pre Fader Listen switch allows you to listen, or “solo” a channel or group of channels in the headphones. When the a stereo input channel’s PFL switch is pressed down, that channel’s signal is assigned to the solo bus and can be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. Since the signal is sent pre fader, you can hear the signal regardless of the position of the channel volume Fader. This allows you to listen a channel by itself, let's say, to see if an artist is out of tune, or to cue up a channel without having to play it through the main PA speakers.

26 – PEAK LED

The TXM16 and TXM20’s MIC/LINE pre-amp also includes a PEAK LED which, when illuminated, indicates that the signal is peaking or overloading. To reduce distortion, lower the GAIN control to keep this LED from staying on.

27- VOLUME - Fader Level Control

The VOLUME Fader control adjusts the level of the stereo channel.

Controls and Functions

24BIT DIGITAL EFFECT SECTION

The TXM16 and TXM20 feature built-in, 24 Bit Digital Multi-effects Processor(s) with 100 dazzling, studio quality effects like Delay, Chorus, Flanging and lush Reverbs including Halls, Plates and Rooms. In addition, there are multi-effects presets that have two effects combined together. For example, Delay and Reverb or Reverb and

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Chorus, to name a few. The following section describes the features control knobs and layout of the powerful onboard digital Multi-effects section.

28 - Program Effects Display

The TXM series mixers Multi-effects Processors feature a dual digit, seven-segment numerical Effects Display for showing the effects PROGRAM number from 00 - 99. You will see the PROGRAM numbers change as you scroll through the effects pre-set using the DSP SELECT control. When the Effects Display shows two straight lines through the center of each segment, the effects are turned off and the EFX ON switch is in the out position. See section number 31 below.

29 - Effect PROGRAM List

This section identifies the ten banks of built-in DSP effects presets. The first bank of 10 presets have been programmed with common effects for live performance, and the following banks are set up in groups by the types of effects.

34 - EFX SEND - Master Effect Send

The master EFX SEND control is used to send the effect mix bus to an external effect device connected to the EFX OUT SEND jack.

35 - EFX RTN 1 PFL (Pre Fader Listen) - switch

The EXF RTN 1’s PFL, or Pre Fader Listen switch allows you to listen, or “solo” the EFX 1 Return or group of channels in the headphones. When a stereo input channel’s PFL switch is pressed down, the EFX RTN 1 signal is assigned to the solo bus and can be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. Since the signal is sent pre fader, you can hear the signal regardless of the position of the EXF RTN 1 volume Fader. This allows you to listen a EFX RTN 1 by itself: (let's say) to see if a reverb is long enough, or to cue up an echo without having to play it through the main PA.

36 – EFX RTN 1 FADER - Effects Level Control

The EFX RTN 1 fader control is used to adjust the level of the effects from the built-in digital Multi-effect that’s being sent to the MAIN mix bus. This allows you to hear the DSP effects in your MAIN speakers.

37 – TXM20’s Effect 2 control strip

Same as functions 28 – 36 for DSP Multi-effects number 2.

30- SELECT control knob

The SELECT control knob is a continuously variable encoder, or tweaker, that allows you to call up one of the 100 built-in digital effects presets. Simply rotate the SELECT knob to scroll through the preset programs using the Effects Display to choose the effect number you want.

31 – EFX ON switch

The EFX ON switch is used to turn the internal Digital Effect on and off. The effects are by-passed when the switch is in the out position and the Effects Display shows two dashes.

32 - AUX 1 RTN - Effects Return to Aux 1 control knob

The AUX 1 RTN control is used to adjust the level of the effects from the built-in digital Multi-effect that’s being sent to the Aux 1 monitor bus. This allows you to add the DSP effects to the signal in your monitor speakers. Turn this knob up if you want to hear the effect in the AUX 1 monitor mix.

33 - AUX 2 RTN - Effects Return Control

The AUX 2 RTN control is used to adjust the level of the effects from the built-in digital Multi-effect being that’s being sent to the Aux 2 monitor bus. This allows you to add the DSP effects to the signal in your monitor speakers. Turn this knob up if you want to hear the effect in the AUX 2 monitor mix.

Stereo Line Input

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38 - AUX 1 - control knob

Each of the TXM16 and TXM20’s Mono/Stereo Line channels include an AUX 1 send, which controls the amount of that channel’s signal that is sent to the AUX 1 Output. The signal feeding Aux 1 is sent before, or pre, the channel Level control, so the channel Level has no effect on the Aux 1 level. The Aux 1 bus is usually used to create a separate mix for a floor monitor system.

39 - AUX 2- control knob

Each of the TXM16 and TXM20’s Mono/Stereo Line channels include an AUX 2 send, which controls the amount of that channel’s signal that is sent to the AUX 2 Output. The signal feeding Aux 2 is sent before, or pre, the channel Level control, so the channel Level has no effect on the Aux 2 level. The Aux 2 bus is usually used to create a separate mix for a floor monitor system.

Note: If the AMP MODE switch is set to either MONO - AUX 1, or AUX 1 - - AUX 2, the signal from AUX 1 bus will be sent through the Master Aux 1 Send and then directly to the internal power amplifier. For more information on the AMP MODE switch see the section “Using the AMP MODE Switch” on page 12 in this manual.

Controls and Functions

40 - LEVEL – control knob

The Level control adjusts the level of each mono/stereo input channel.

41 - PFL switch

The Stereo Line Input channel’s PFL, or Pre Fader Listen switch allows you to listen, or “solo” a channel or group of channels in the headphones. When the stereo input channel’s PFL switch is pressed down, that channel’s signal is assigned to the solo bus and can be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. Since the signal is sent pre fader, you can hear the signal regardless of the position of the channel Level control. This allows you to listen to a channel by itself: (let's say), to check the reverb decay time, or to cue up an echo without having to play it through the main PA speakers.

Master Auxiliary Send Section

42 - AFL switch

The Aux 1 master send output’s AFL, or After Fader Listen switch allows you to listen, or “solo” a channel or group of channels in the headphones. When the Aux 1 AFL switch is pressed down, that Aux’s signal is assigned to the solo bus and can be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. This allows you to listen to an Aux send by itself, let’s say, to check that a signal is not distorted before it gets to the power amplifier. Since the signal is sent after the Aux 1 level fader, you hear the signal with the added gain from the Aux 1 Level control.

43 - AUX 1 - Master Send Fader

To control the overall output of the Aux 1 bus, the TXM mixers have an Aux 1 Master fader. Each of the channels Aux 1 signals are mixed together and sent Aux 1 Output. Use the Aux 1 level control to set the amount of signal being sent to Aux 1 Output.

44 - LINE IN / AUX 2

Same functions as 38 through 43.

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Controls and Functions

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PHONES and CD/TAPE IN Section

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48 - PFL switch

The CD/TAPE input channel’s PFL, or Pre Fader Listen switch allows you to listen, or “solo” the CD/TAPE input in the headphones. When the CD/TAPE input channel’s PFL switch is pressed down, that channel’s signal is assigned to the solo bus and can be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. Since the signal is sent pre fader, you can hear the signal regardless of the position of the channel Level control. This allows you to listen to a channel by itself: (let's say), to cue up a song on a CD player without having to play it through the main PA speakers.

49 -CD/TAPE – Fader control

The TXM16 and TXM20 have a dedicated line level CD/ TAPE input to connect a CD, Tape or MP3 player. The CD/ TAPE level fader control is used to adjust the volume of the signal connected to the CD/TAPE input.

MONO/SUBWOOFER Output Section

The TXM16 and TXM20 have a MONO output that can be used to send to a secondary speaker zone. You can also configure the MONO Output to drive a subwoofer system by using the built-in variable Low Pass Filter.

45 - PHONES – Control knob

This control adjusts the level of Headphone Output.

46 -MAIN MIX 2 – control knob

The TXM mixers provide a second set of output connectors carrying a duplicate of the MAIN MIX signal for the purpose of feeding another speaker zone or recorder. The MAIN MIX 2 control knob is used to set the volume of the MAIN Mix 2 output.

47 - Mute CH 1 - 8 (12) - switch

You can turn off channels 1 through 8 on the TXM16 and 1 through 12 on the TXM20 with a press of a single button using the MUTE CH 1 – 8(12) switch. This is especially convenient when you take a break and want to leave all the levels set so they are ready when you begin to use your PA system again. The MUTE 1-8 does not turn off channels 7/8 9/10, 11/12 and 13/14, and does not turn off the CD/TAPE inputs. So, when the MUTE CH 1 – 8(12) switch is on, you still have a 2-channel DJ mixer with two available mic inputs. The MUTE switch features an electronic circuit for silent switching that ramps the signal up and down to prevent pops when the switch is turned on and off.

Controls and Functions

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50 - FREQUENCY – control knob

The TXM mixers have a onboard Low Pass Filter to make it simple to connect a subwoofer. Use the FREQUENCY control to adjust the crossover point for the Low Pass Filter in a range of 20 Hz to 200 Hz. The FREQUENCY control knob is active when the SUBWOOFER ON/OFF switch is set to ON.

51 - SUBWOOFER ON/OFF – switch

Used to engage the Low Pass Filter and turn the MONO output into a subwoofer output.

52 - AFL - switch

The MONO output’s AFL, or After Fader Listen switch allows you to listen, or “solo” the MONO in the headphones. When the MONO AFL switch is pressed down, the left/right mix will be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. Since the signal is sent after the MONO level fader, you hear the signal with the added gain from the MONO Level control.

53 - MONO - Level fader

The MONO level fader control is used to adjust the volume of the signal connected to the MONO/SUB output.

MAIN Output Section

54 - PEAK LEDs

The left and right PEAK LED’s illuminate when the signal from the MAIN mix is beginning to reach a level where distortion occurs. If the PEAK lights stay on, your mix is too hot and you need to lower the MAIN mix volume. It is okay for the PEAK light to occasionally light, however they should go off quickly and not stay on.

55 - LED VU METER

The OUTPUT LEVEL METER allows you to monitor the level of the signal, which is being sent to the MIX OUT jacks.

NOTE: To avoid distortion, adjust the MAIN level control so that the 0 indicator LED lights occasionally.

56 - AFL (MAIN MIX) – switch

The MAIN MIX output’s AFL, or After Fader Listen switch allows you to listen, or “solo” the MAIN MIX in the headphones. When the MAIN MIX AFL switch is pressed down, the left/right mix will be heard in any optional headphones plugged in to the PHONES connector located in the front panel jack field. This allows you to listen to the stereo mix , (let’s say), to check that a signal is not distorted before it gets to the power amplifier. Since the signal is sent after the MAIN MIX level fader, you hear the signal with the added gain from the MAIN MIX Level control.

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57 -MAIN MIX (left and right) - Level fader

The MAIN MIX Level fader adjusts the level of MAIN left and right stereo mix.

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Controls and Functions

POWER AMP SECTION

The TXM16 and TXM20’s power amplifier section includes the Power Amp MODE switch, the PEAK limiter and Phantom Power switch, as well as LED indicators for the Protection Circuit and Main power. Using the power amp MODE switch, the TXM mixers’ power amplifier can be configured to operate several ways depending on wheth-

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er you want to run your Main speakers in stereo, or if you want to run mono Mains and use one side of the power amp for the Monitor mix. The PHANTOM POWER switch engages the power supply to allow you to connect condenser microphones. The PEAK LIMITER helps you keep the sound clean by using an active circuit to automatically control the system dynamics. And the Protection Circuit will help your TXM run trouble free for years. The section below describes the TXM mixers’ MODE switch, PEAK LIMITER, PHANTOM POWER and PROTECTION CIRCUIT.

58 – PEAK LIMITER - Switch

In order to keep the sound loud and clean, the TXM mixers incorporate an on-board Limiter which is a dynamic processor that helps keep the signal from clipping the power amplifier. When you press the PEAK LIMITER switch in, the red LED will illuminate indicating that the dynamics processing is engaged.

IMPORTANT NOTE: Unless you are using an external limiter, it is highly recommended that the LIMITER switch be engaged at all times. This will ensure the cleanest possible output, and will protect your speaker system when it accidentally receives a clipped signal from your mixer.

59 - Phantom Power - Switch

The TXM16 and TXM20 feature an onboard, 48-Volt Phantom power supply to operate condenser microphones. When the switch is engaged, the LED will illuminate indicating that phantom power is now available at the microphone pre-amps.

IMPORTANT NOTE: To avoid a loud pop, be sure to turn down the master level controls before plugging and unplugging the mic cables when the phantom power is active. Be sure the MAIN level fader is turned all the way down before activating the Phantom Power to prevent pops from entering any external device connected to the mixer. Also, be sure the Phantom Power is OFF when connecting or disconnecting microphones.

60 - Power Amp Mode switch

The TXM16 and TXM20 have two internal power amplifiers, which can run in stereo or as two separate mono amplifiers. Depending on the position of the MODE switch, the amplifiers received their input signals from the MAIN, AUX 1 or AUX 2 monitor bus. The MODE switch is used to select one of four different operating modes, MAIN L-MAIN R, MONO-AUX 1, AUX 1 - AUX 2 and MONOBRIDGE. The switch has been recessed under the panel to avoid accidental switching during normal use. Use the end of a plastic ballpoint pen or a plastic screwdriver to change the position of the switch. The following is a description of each of the POWER operating modes:

CAUTION! Only change the power amp mode switch when the TXM16 and TXM20’s power is SWITCHED OFF!

MAIN L - MAIN R

The TXM mixers are shipped with the POWER AMP MODE switch is set to MAIN L– MAIN R for normal stereo operation. In this mode, the signal from the MAIN left and right mix will be routed separately to the two internal 500-watt amplifiers.

MONO – AUX 1

You can use one of the internal 500-watt amplifiers for the MAIN mix in mono, and the other 500-watt amplifier for the Monitor Mix by setting the TXM mixers’ POWER AMP MODE switch to MONO – AUX 1. In this mode, the signal from the MAIN mix in mono and the Aux 1 mix will be routed, separately, to the two internal 500-watt amplifiers. If you want to use one of the internal power amps to power your monitors, choose the MONO – AUX 1 position on the POWER AMP MODE switch using a plastic screwdriver.

AUX 1 – AUX 2

You can use one of the internal 500-watt amplifiers for the Aux 1 monitor mix, and the other 500-watt amplifier for the Aux 2 monitor mix by setting the TXM mixer's POWER AMP MODE switch to AUX 1 – AUX 2. In this mode, the signal from the Aux 1 and Aux 2 mix will be routed separately to the two internal 500-watt amplifiers. If you want to use both of the internal power amps to power two monitor mixes, choose the Aux 1 – AUX 2 position on the POWER AMP MODE switch using a plastic screwdriver.

MONO - BRIDGE

With this setting, the two power amp channels (1 and 2) will be connected in bridge mode. Only the MAIN bus signal will be output from the BRIDGE jack.

61 – MAIN POWER LED

The POWER LED will illuminate when the unit is plugged in to a power outlet with the proper voltage and main power switch is set to the ON position.

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Controls and Functions

62 - PROTECT LEDs

The TXM mixers have a protection circuit to help prevent damage to the power amplifiers when it is presented with a clipped signal for an unsafe duration. The TXM mixer's PROTECT LED’s will illuminate indicating the protection circuit is active to help avoid serious damage to the amplifier section. There are individual PROTECT LED’s for the left and right power amplifiers. If either of the PROTECT LED’s illuminate, turn the main volume down and wait for the LED’s to go off. This is your indication that it is safe to return to normal operation. In order to keep the amplifier from going into PROTECT mode, be sure to keep the PEAK LEDS in the MAIN meter section from lighting.

65 – MAIN STEREO EQUALIZER

The TXM16 and TXM20 provide a nine-band MAIN STEREO EQUALIZER allowing you to contour the frequency response of the MAIN stereo mix bus signal. Providing a maximum of 12dB of cut/boost for each frequency band, the TXM mixer's Graphic EQ is also extremely useful tool for cutting the frequencies that cause annoying feedback. The frequency response is flat when the sliders are in the center position. Moving a slider in the positive direction will boost that frequency by as much as 12dB, and moving the slider in the negative direction will cut that frequency by up to 12dB. And since the MAIN Graphic Equalizer is stereo, the EQ curve is applied to both the left and right signal at the internal power amp input, the MAIN MIX out, MAIN INSERT, as well as the MAIN MIX OUT 2 output.

66 – MAIN EQ ON/OFF switch

The EQ ON/OFF switch is used to engage or bypass the MAIN EQUALIZER. When the switch is in the down position, the EQ is on and when the switch is up, the EQ is bypassed.

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63 – MONITOR EQUALIZER

The TXM16 and TXM20’s nine-band MONITOR EQUALIZER allows you to contour the frequency response of the AUX 1 mix bus signal. Providing a maximum of 12dB of cut/boost for each frequency band, the TXM mixer's Graphic EQ is also extremely useful tool for cutting the frequencies that cause annoying feedback. The frequency response is flat when the sliders are in the center position. Moving a slider in the positive direction will boost that frequency by as much as 12dB, and moving the slider in the negative direction will cut that frequency by up to 12dB. The response curve set using the Graphic Equalizer is also applied to the signal at the AUX 1 output.

64 – MONITOR EQ ON/OFF - switch

The EQ ON/OFF switch is used to engage or bypass the MONITOR EQUALIZER. When the switch is in the down position, the EQ is on and when the switch is up, the EQ is bypassed.

TXM16 and TXM20 Input and Output Connections

CHANNEL 1 – 8 (12) MONO MIC/LINE INPUTS

The TXM mixers offer plenty of mono mic/line and stereo line input channels, sixteen on the TXM16 and twenty on the TXM20’s, for connecting a variety of signal sources from microphones to line level devices such as synthesizers, drum machines and direct boxes.

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The mono mic/line inputs each have a LINE level, HiZ (High Impedance) input , a MIC level, Low-Z (Low Impedance) input; and an Insert connector for effects. Both LINE and MIC inputs are balanced, with MIC inputs compatible with microphones of output impedance 50-600 Ohms and LINE inputs compatible with line level devices of 600 Ohms. Following is a description of the Mic/Line input connectors:

A - MIC - Microphone Input

Use these inputs to connect Low Impedance microphones and low-level signals from direct boxes. The MIC inputs have a nominal operating level of –50dBV through

-20dBV. The MIC inputs also feature +48V phantom power, allowing you to use condenser microphones. The Phantom Power is switched on/off simultaneously for channels 1 through 8(12). XLR connector pin-out - Pin 1: Ground, Pin 2: Hot (+), Pin 3: Cold (-)

B – LINE - Line Level Input

Use these inputs to connect high impedance microphones, synthesizers and drum machines. The LINE inputs have a nominal operating level of -40dBV through

- 10dBV. TRS phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+), Ring: Cold (-)

NOTE: It is not possible to simultaneously use both the

C – INSERT - Send and Return jack

The TXM16 and TXM20 have a 1/4-inch, TRS (TIP/RING/ SLEEVE) Insert jack for connecting outboard effects processors directly on the channel input. The signal is sent on the tip (the Send) and returns on the ring (the Return) of the connector.

LINE and MIC inputs on the same channel. For each channel, use only one of the inputs as appropriate for the input source.

Stereo Input Channels - 1/4-inch and RCA

Each of the TXM mixers has two sets of full-featured stereo input channels, Channels 9/10 and 11/12 on the TXM16 and Channels 13/14 and 15/16 on the TXM20. Use these for connecting stereo signals like those from CD or MP3 players, electronic keyboards, drum machines and other line level signals. These inputs have both 1/4-inch and RCA connectors for connecting your gear. Following is a desciption of the Mic/Line input connectors:

D - Stereo Inputs - RCA jacks

The TXM stereo channel ‘s RCA connectors accept signals from stereo line devices. The RCA line level inputs have a nominal operating level of -40dBV through - 10dBV.

E - Stereo Inputs - 1/4-inch jacks

The TXM16 and TXM20 have two pairs of 1/4-inch jacks for connecting stereo line level sources. For stereo inputs use the LINE L to connect the left channel and the LINE R to connect the right channel. Use these inputs to connect high impedance microphones, synthesizers and drum machines. The LINE inputs have a nominal operating level of -40dBV through - 10dBV. TRS phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+), Ring: Cold (-)

Stereo Input Channels - 1/4-inch

Each of the TXM mixers has two sets of basic stereo line level input channels, Channels 13/14 and 15/16 on the TXM16 and Channels 17/18 and 19/20 on the TXM20, for connecting stereo signals like those from CD or MP3 players, electronic keyboards, drum machines and other line level signals.

F - Stereo Inputs - 1/4-inch jacks

The TXM16 and TXM20 have two pairs of 1/4-inch jacks for connecting stereo line level sources. For stereo inputs, use the LINE L to connect the left channel and the LINE R to connect the right channel. If you are using the inputs for a mono line input, use the LINE L input, (channels 13 or 15 on the TXM16 and channels 17 or 19 on the TXM20), only so that the signal feeds both the right and left Main mix bus. Use these inputs to connect high impedance microphones, synthesizers and drum machines. The LINE inputs have a nominal operating level of -40dBV through

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TXM16 and TXM20 Input and Output Connections

- 10dBV. TRS phone jack connector pin-out - Sleeve: Ground, Tip:

Hot (+), Ring: Cold (-)

CD/TAPE IN and RECORD OUT

You can interface a cassette recorder, computer sound card or other recorders using the TXM16 and TXM20’s CD/ TAPE and RECORD OUT.

G - CD/TAPE Inputs - RCA jacks

The TXM mixers feature a stereo line level input, on RCA connectors, for connecting the output of devices such as MP3, CD, computer soundcard, cassette player, or any other line level device.

H - Record Out - RCA jacks

The signal present at this connector is the MAIN bus signal before it has passed through the MASTER level control and graphic equalizer. The nominal output level is -10dBV and the impedance is 100 Ohms.

Master Input and Output Section

The TXM mixer's Master Input and Output section has the connectors for interfacing the PHONES, FOOTSWITCH, MAIN OUT, MAIN OUT 2, MAIN INSERT POINTS, AMP IN, and the master AUX OUT’s.

I – FOOTSWITCH - 1/4-inch jack

With a footswitch connected to this jack, you can turn on and off the on-board digital effects by simply stepping on the footswitch.

J- EFX OUT- 1/4-inch jack

The EFX OUT (AUX 3) output is used to send a signal to an

external signal processor such as a delay or reverb. The signal present at the AUX 3 output is sent from the AUX3/ DSP bus, which is fed from the AUX3/DSP send on the input channels. TR phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+), Ring: Cold (-).

K- AMP IN (Left and Right) - 1/4-inch jacks

The Left and Right AMP IN 1/4-inch phone jacks are used to make a direct connection to the TXM’s internal power amplifiers. You can connect a stereo source like the output from an external mixer here. TR phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+).

L - MAIN INSERT (Left and Right) - 1/4-inch Send and Return jack

Send and return patch point on TRS (TIP/RING/SLEEVE) jack for interfacing external effects processors on Left and Right MIX bus. The signal is sent on the tip (the Send) and returns (the Return) on the sleeve of the connector.

M – PHONES - 1/4-inch jack

Connect standard stereo headphone, 60 to 600 Ohms, here.

N - MONO/SUB OUT- 1/4-inch jack

The Left and Right Mix outputs are summed together and sent to the MONO/SUB output. The volume of the Mono signal can be adjusted using the MONO/SUB OUT level fader control and used to feed a speaker zone in a fixed installation. For added flexibility, the MONO/SUB OUT can be used to a feed a subwoofer using the onboard variable Low Pass Filter. TR phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+).

O - AUX OUT (1 and 2) - 1/4-inch jacks

The signal present at the AUX 1and Aux 2 outputs are sent from the AUX 1 and AUX 2 bus, which is fed from the AUX 1 and AUX 2 control knobs on the input channels. The AUX 1 and AUX 2 are normally used as a MONITOR MIX bus in a live sound situation by connecting the output to a power amp and monitor speaker. TR phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+).

P - MAIN OUT - 1/4-inch jacks

In a live sound application, you can drive a second speaker system using MAIN OUT outputs connected to a power amplifier or powered speakers. The signal at the MAIN OUT jacks follows the MAIN volume fader. TR phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+).

Q - MAIN OUT 2- 1/4-inch jacks

In a live sound application, you can drive a second speaker system using the MAIN OUT 2 outputs connected to a power amplifier or powered speakers. In a recording application, the MAIN OUT 2 outputs are used to connect a stereo device such as computer sound card, MP3, or cassette recorder. The signal at the MAIN OUT jacks follows the MAIN OUT 2 level control knob allowing you to set a different level to the recorder. TR phone jack connector pin-out - Sleeve: Ground, Tip: Hot (+).

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TXM16 and TXM20 Input and Output Connections

REAR PANEL

The TXM16 and TXM20 contain two mono power amplifiers and depending on the power amp operating mode, the two amplifiers can be used independently (maximum output 500W + 500W) or in BRIDGE mode (maximum output 1000W).

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If the two power amplifiers are used for MAINS operation, two 8 Ohm speakers can be connected to the AMP 1 1/4inch jack and Speakon connectors and two more to the AMP 2 1/4-inch jack and Speakon connectors, for a total of four speakers.

NOTE: When using the 1/4-inch jacks and Speakon connectors simultaneously, connect 8 through 16 Ohm speakers.

The total impedance load for each amplifier must not exceed 4 Ohms, therefore in the example above, one speaker with an impedance of 8 ohms is connected to each amp’s 1/4-inch jack or Speakon connector. (The 1/4-inch jack or Speakon connector jacks are wired in "Parallel", so the total impedance when two 8 Ohm speakers are connected is 4 Ohms.)

If you wish to use two amplifiers independently, let’s say for Main and Monitor operation, but only connect a single speaker to the 1/4-inch jack or Speakon connector, use a 4 through 8 Ohm speaker. Again, the total impedance load for each amplifier must not exceed 4 Ohms, therefore one speaker with an impedance of 4 ohms can be connected to each amp’s 1/4-inch jack or Speakon connector.

connector, which are powered outputs used to connect your left side main PA speaker when using the TXM16 and TXM20 in stereo mode.

When operating in MAIN / AUX1 mode, the AMP 2 powered output connectors are used to connect to floor or side fill monitors facing the performers. When operating in AUX1/ AUX2 mode, the AMP 1 and AMP2 powered output connectors are used to connect to floor or side fill monitors facing the performers. Below is a wiring diagram for the Speakon connection.

The TXM16 and TXM20's internal amplifier can run in mono BRIDGE mode by changing the POWER AMP MODE switch. In this mode, the internal power amp reconfigures itself to mono and outputs the signal on the POWER AMP 1's Speakon connector. In BRIDGE mode, the AMP1 Speakon uses different pinouts. Therefore, when using the TXM16 and TXM20 in mono BRIDGE mode, you must use a specially wired Speakon cable to make the connection. Below is a wiring diagram for the Speakon connector wired for BRIDGE MONO operation.

If the two amplifiers are used in a BRIDGE mode, only one speaker can be connected to the AMP 1 Speakon connector. The total impedance load while operating in Bridge mode must not be less than 8 Ohms. If you are connecting a speaker to the BRIDGE jack, use an 8 through 16 Ohm speaker.

CAUTION: When using a bridge connection, do not con-

nect anything to the AMP 2 jacks.

R- AMP 1 – Powered Speaker Outputs

The AMP 1 output has a 1/4-inch jack and a Speakon

NOTE: Use the POWER AMP MODE switch to activate BRIDGE mode , and to select which signal is sent to the speaker output jacks.

S- AMP 2– Powered Speaker Outputs

The AMP 2 output has 1/4-inch jack and a Speakon connector, which are powered outputs used to connect your right side main PA speaker when using the TXM16 and TXM20 in stereo mode. When operating in MAIN / AUX1 mode, the AMP 2 powered output connectors are used to connect monitor speakers.

TXM16 and TXM20 Input and Output Connections

SPEAKER CONNECTION

The TXM16 and TXM20’s power amplifier section can be configured to operate several ways depending on the setting of the power amp MODE switch located on the front panel. This allows you to choose whether you need MAIN plus MONITOR amplifiers to power your speakers, or if you just need more power for the MAIN speakers. For more

information on the POWER AMP MODE switch, see the section POWER AMP SECTION on page 12 of this manual.

There are three ways in which speakers can be connected to the TXM16 and TXM20: A single speaker can be connected to either the 1/4-inch jack or a Speakon connector of AMP 1 and AMP 2, two speakers can be connected in parallel to both the 1/4-inch jack and a Speakon connector of AMP1 and AMP 2, or a single speaker can be connected to the BRIDGE jack (bridge connection). For each of these, the required speaker impedance will differ. Refer to the following diagrams, and make sure that the speaker impedance is not less than the specified value.

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When connecting two speakers to POWER AMP 1 and two speaker to POWER AMP 2, use speakers with a 8 – 16 ohm impedance rating.

Additional, or alternative amplifiers and speakers, or powered speakers can be connected to the MAIN MIX OUT , MAIN MIX OUT2, AUX 1, AUX 2 SEND jacks on the top panel.

When connecting one speaker to POWER AMP 1 and one speaker to POWER AMP 2, use speakers with a 4 – 8 ohm impedance rating.

When the POWER AMPS are in BRIDGE MODE, use speakers with an 8 – 16 ohm impedance rating.

Operating the TXM16 and TXM20

BASIC OPERATION

The following section explains the basic operation of the TXM16 and TXM20.

CONNECTING MICROPHONES AND INSTRUMENTS

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1. Before connecting mics or instruments, make sure that the power of all your system's components, including the TXM mixer, is turned off. Also, make sure that the volume and gain controls of each channel of the TXM16 or TXM20 and the MAIN, MONO, AUX1 and AUX2 level faders are turned all the way down.

2. Next, make the connection to your speakers using heavy gauge, un-shielded speaker cable.

3. Connect the cables to your microphones and instruments, and insert the other end of the cable firmly into the appropriate input on the TXM16 or TXM20.

4. Switch on the power of any peripheral devices, and then power up the TXM16 and TXM20.

NOTE: Since the TXM16 and TXM20 contain two internal power amplifiers, it is important to remember the Golden Rule of audio … "LAST ON, FIRST OFF". Translated, this means that when powering up your PA system, you should always turn your power amplifiers on LAST, and when power your system down, turn your power amps off FIRST.

This helps avoid any loud pops caused by in-rush current at power up or power down, which can sometimes damage loudspeakers.

5. Make sure the channel faders are all down, then set the MAIN level fader control to the “0” position.

6. Before you turn up a channel, you want to make sure you set a good level, with no distortion, on the channel input GAIN. While speaking into the mic (or playing the instrument), adjust the channel GAIN control so that the “PEAK” LED of the channel lights occasionally, then back it down slightly.

7. Once you have set the GAIN control, slowly adjust the channel LEVEL fader control until the desired level is reached.

8. If you wish to adjust the tone of each channel, adjust the equalizer controls as desired. You may have to readjust the channel volume.

9. Use the MAIN STEREO GRAPHIC EQ section graphic equalizer and MASTER control to adjust the overall volume and tone. You can increase the overall level of your system by cutting certain frequencies that cause feedback.

Operating the TXM16 and TXM20

USING THE DIGITAL EFFECTS

The TXM mixers feature a built-in, high quality, 24-bit Multi Effect Processor, (two on the TXM20), offering studio grade effects. The EFX section features clean Delay, lush Reverbs and multi-effects like Chorus + Delay or Chorus + Reverb. You can add a broad range of studio quality effects by simply dialing through the 100 presets. The following details the operation of the internal DSP effects in the EFX section:

1. Connect a mic or instrument to the desired channel, adjust the level and equalizer to your liking and make sure the MAIN fader level is set so you can hear it in your

5. If you want to hear the effects in the monitors, turn up the AUX1 RTN and/or AUX2 RTN until you have the level of effects you want in those mixes. For more information on setting up a monitor mix, see the following section.

NOTE: If the effect sound is distorted even though the EFX RTN is turned down low, lower the EFX 1 controls of each channel.

6. Repeat the steps above for the second EFX section on the TXM20 using the EXF 2 auxiliary send instead of EFX

SENDING AN INDEPENDENT MIX TO THE MONITOR SPEAKERS

The TXM16 and TXM20 allow you to operate the power amplifiers in a MONO/ AUX1 mode. This lets you use one amplifier for speakers facing the audience, and the other amplifier for the monitor speakers facing the musicians. You can also use an external power amp to power your monitors when running the TXM Mixer in stereo. Either way, you’ll want to make a separate mix for the monitor system that’s different fro the MAIN mix, let say to hear more vocals than instruments. Follow these simple steps to set up your monitor mix. For this example we assume that you will be using an external power amp.

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speakers.

2. Now select the desired EFX program using the SELECT control knob located in the middle of the EFX channel strip. Set the DSP SELECT switch to one of the 100 effects. You can check the EFX Program List to find the effect perfect for your performance. The first bank of 10 presets have been programmed with common effects for live performance, and the following banks are set up in groups by the types of effects.

3. Once you have selected the desired EFX program, raise the EFX 1 control on the channels you wish to apply the digital effect to.

4. Now use the EFX RTN fader control to adjust the effects return level. The EFX RTN fader control sets the overall level control for the DSP EFX processor.

1. Connect the AUX 1 Output to the input of your monitor power amplifier. Connect your amplifier to your monitor speakers according the amplifier operating instructions.

2. Make sure that the AUX 1 Send level fader is all the way down.

3. Raise the AUX 1 controls for the channels that you wish to hear from the monitor speakers.

NOTE: The MONITOR controls are not affected by the level settings of each channel. This allows you to create a mix for the monitor that is independent of the MAIN mix.

Now raise the AUX 1 Send fader up until you get a good level. If feedback occurs, back down on the AUX 1 Send fader.

4. You can use the MONITOR GRAPHIC EQUALIZER to cut the frequencies that cause feedback. Setting the equalizer to get the most gain before feedback requires a good ear, but mostly, a lot of painful experience. If you are just starting out use the standard “smile” EQ curve where the mids are cut down and the lows and high are slightly boosted.

Operating the TXM16 and TXM20

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SENDING AN INDEPENDENT MIX TO THE MONITOR SPEAKERS - continued.

5. Use the graphic equalizer and AUX 1 Send fader level control in combination to adjust the overall volume and tone.

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6. For a second monitor mix, repeat the steps above for using the AUX 2 monitor bus.

USING AN EXTERNAL EFFECT

If you prefer to use an external device for effects processing, you can easily connect the unit using the TXM16 and TXM20 EFX bus. Follow the simple steps below to interface your processor:

1. Connect your processor by using a standard shielded cable from the TXM mixer’s EFX OUT jack to the input of the external effect. Now, you can use any of the TXM mixer’s stereo line input channels to connect the output of the effects, using the same type of cables.

2. Set the EFX ON/OFF switch to the “OFF” position to disable the internal DSP.

3. Raise the EFX 1 controls for the channels to which you want the external effect to be applied, and set them to about half way, or to the “5” position.

4. Next you need to set the main EFX send level using the SEND control knob located in the middle of the EFX channel strip. To start, you can set the level to about half way up, or to the “5” position.

5. Set the input level of the external effect so that the sound is not distorted and so that the effect’s input meter does not indicate a clipped signal.

6. Now, raise the stereo input level faders on the channel that you have the effects outputs connected to until you hear enough effect return.

INSERT POINTS AS AN EFFECTS LOOP

You can use the TXM16 and TXM20’s MAIN Left and Right Insert points as effects loops for connecting an external signal processor. This will allow you to apply an effect on the entire main stereo mix. You may want to use an external dynamics processor like a compressor. The following section details the hook up:

1. Using standard 1/4-inch insert Y cable, connect the MAIN Insert to the Left input and output of a stereo compressor like a Samson C com 16 or S com plus.

2. Using another standard 1/4-inch insert Y cable, connect the MAIN Insert to the Right input and output of a stereo compressor like a Samson C com 16 or S com plus.

3. Now, follow the directions in your compressor users manual to set the correct gain structure and to adjust the parameters for compressing your signal.

Operating the TXM16 and TXM20

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RECORDING YOUR PERFORMANCE FROM THE TXM16 and TXM20

You can record the audio from the TXM16 and TXM20’s mixer section including the MIC, LINE, TAPE IN and AUX inputs to a cassette deck, MP3, MD, DAT or any other type of recorder using the record outputs. Simply connect the TXM16 and TXM20’s CD 2/ TAPE OUT jacks to the input jacks of the recorder as shown in the diagram below. For playback, connect the recorder's outputs to the CD/TAPE input.

Using the MONO OUTPUT to Drive a Subwoofer System

The TXM16 and TXM20’s MONO OUT can be used to drive a subwoofer system by engaging the SUBWOOFER ON/OFF switch located in the MONO output strip. When the SUBWOOFER ON/OFF switch is pressed in, the variable Low Pass, (high-cut), filter is active. Now you can use the FREQUENCY control knob to set the high frequency limit of the MONO/SUBWOOFER OUT. The TXM mixer’s FREQUENCY control has a range from 20Hz to 200Hz allowing you to tune the output for a variety of subwoofers. You can check your subwoofer’s owners manual for the manufacturers recommended cut off frequency, or use your ears while slowly sweeping the cut off point using the FREQUENCY control knob to find the correct setting for your system.

Connect the TXM16 or TXM20’s MONO OUT to the input of the power amp driving your subwoofer as illustrated in the drawing below.

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TXM16 and TXM20 System Set-Ups

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TXM16’s AUX OUT con-

nected to an external

monitor amp.

This system shows the

TXM16 power amp

operating in MAIN/MAIN

mode, with one speaker

connected to POWER

AMP 1 and one speaker

connected to POWER

AMP 2. The AUX OUT is

connected to an exter-

nal power amp, which

is driving 2 monitor

speakers. For inputs,

four microphones are

connected to channel

1 and 2’s low-imped-

ance inputs, and the

output of the Bass Direct

Box is also connected

to the Low-Impedance

input on channel 5. The

Keyboards, as well as

the Lead and Rhythm

Guitar signal processors’

outputs, are connected to

the TXM16’s line inputs.

TXM16 and TXM20 System Set-Ups

ENGLISH

This system shows the

TXM16 power amp oper-

ating in MONO/AUX1

mode, with two speakers

connected to POWER

AMP 2 and two moni-

tor speakers connected

to POWER AMP 1. For

inputs, four microphones

are connected to channel

1 and 2’s low-imped-

ance inputs, and the

output of the Bass Direct

Box is also connected

to the Low-Impedance

input on channel 5. The

Keyboards, as well as

the Lead and Rhythm

Guitar signal processors’

outputs, are connected to

the TXM16’s line inputs.

TXM16 and TXM20 Wiring Guide

CONNECTING THE TXM16 and TXM20

There are several ways to interface the TXM16 and TXM20 to support a variety of applications. The TXM16 and TXM20 feature balanced inputs and outputs, so connecting balanced and unbalanced signals is possible.

Unbalanced 1/4” Connector

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Balanced TRS 1/4” Connector

XLR Balanced Wiring Guide

1/4” Insert Cable

Introduction

Merci d'avoir choisi les consoles de mixage amplifiées Samson TXM16 ou TXM20 ! Les TXM16 et TXM20 sont des consoles amplifiées 16 entrées/20 entrées offrant une organisation intuitive et un format pratique. Les deux modèles sont équipés d'un amplificateur de puissance impressionnant de 1000 Watts pouvant être configuré en stéréo (2 x 500 Watts), en mode façade/retour (500 Watts pour chaque mixage) ou en mono bridgé (1000 Watts). Les consoles TXM sont équipées d'un égaliseur graphique 9 bandes stéréo permettant de corriger la réponse en fréquence du mixage de façade (sorties principales gauche et droite), et d'un égaliseur graphique 9 bandes indépendant pour le mixage des retours. La connexion des micros et des instruments s'effectue facilement grâce aux huit entrées micro/ligne et quatre entrées stéréo supplémentaires de la TXM16, et aux douze entrées micro/ ligne et quatre entrées stéréo supplémentaires de la TXM20. Vous disposez également de retours stéréo dédiés aux effets numériques intégrés. Et les effets ! Le processeur d'effets 24 bits intégré de la TXM16 permet de sélectionner l'un des 100 effets numéri ques de qualité studio offerts (dont des délais, des Chorus, des Flanger et de superbes réverbérations) et de l'appliquer au signal d'un micro ou d'un instrument. L'écran LCD 7 segments surdimensionné permet de sélectionner vos Presets d'effets préférés avec facilité. Vous avez besoin d'encore plus d'effets ? La TXM20 est pourvue de deux processeurs d'effets 24 bits intégrés. Les consoles de la série TXM disposent également de plusieurs bus auxiliaires permettant d'utiliser des combinaisons d'effets complexes sur chaque voie, ou d'assigner deux effets différents à des groupes de voies indépendants. Ces bus auxiliaires offrent également une polyvalence inégalée pour les mixages de retour. Les TXM16 et TXM20 permettent une reproduction sonore fidèle et détaillée grâce à leurs préamplificateurs micro faible bruit, leurs bus de mixage faible impédance au son cristallin, leurs deux égaliseurs graphiques 9 bandes intégrés et leur amplificateur haute puissance/faible distorsion. Leur format compact et leurs poignées surdimensionnées à prise sûre facilitent le transport. De plus, la TXM16 peut être montée en Rack à l'aide du kit fourni (11 U de hauteur de Rack).

Le boîtier en acier ultra-résistant assure une fiabilité à toute épreuve afin de garantir un son de haute qualité soir après soir, concert après concert. Optimisées pour les systèmes de sonorisation et les installations commerciales, les TXM16 et TXM20 sont les consoles amplifiées par excellence, offrant une multitude d'entrées, des effets de qualité et un son imposant, le tout dans un format compact.

Avec un entretien adapté et une ventilation suffisante, votre console TXM vous donnera satisfaction pendant de très nombreuses années. Prenez le temps de noter le numéro de série et la date d'achat pour toute référence ultérieure.

Numéro de série : _________________________

Date d'achat : _______________________

Si vous devez faire réparer votre appareil, vous devez tout d’abord obtenir un numéro de retour auprès de Samson. Sans ce numéro, l’appareil ne sera pas accepté. Appelez Samson aux USA au : 1-800-3SAMSON (1-800-372-6766) pour obtenir ce numéro. Conservez l’emballage d’origine afin de l’utiliser en cas de retour. Contactez votre revendeur pour de plus amples informations sur la garantie.

Pensez à consulter notre site Internet (www.samsontech.com) pour obtenir une information complète sur toute notre gamme de produits.

FRANÇAIS

TXM16 et TXM20 - Caractéristiques générales

FRANÇAIS

Les Samson TXM16 et TXM20 sont des conoles amplifiées complètes parfaites pour la plupart des applications de sonorisation. Voici quelques-unes de leurs caractéristiques :

• Les TXM16 et TXM20 sont des consoles amplifiées 16 entrées/20 entrées offrant un format pratique et une disposition intuitive permettant de contrôler facilement les réglages. De plus, la TXM16 peut être montée en Rack à l'aide du kit fourni (11 U de hauteur de Rack).

• Les deux consoles TXM sont équipées d'un ampli

ficateur offrant une puissance impressionnante de 1000 Watts efficace (mesurée sur toute la bande passante), pouvant être configuré en stéréo (2 x 500 Watts), en mode façade mono/retour mono (500 Watts pour chaque mixage) ou en mono bridgé (1000 Watts).

• Plusieurs entrées : La TXM16 comporte huit entrées micro/ligne et quatre entrées stéréo supplémentaires, et le TXM20, douze entrées micro/ ligne et quatre entrées stéréo supplémentaires. Vous disposez également de retours stéréo dédiés aux effets numériques intégrés.

• La TXM16 est munie d'un processeur multi-effets DSP 24 bits intégré offrant 100 Presets d'effets de qualité studio, dont des réverbérations, des délais, des Chorus et des Flangers. La TXM20 est équipée de deux processeurs DSP 24 bits, offrant chacun 100 Presets de qualité studio pour chaque entrée.

• Les consoles TXM sont munies de préamplifica teurs micro à faible bruit de haute qualité pouvant accepter les signaux de la plupart des micros standard. Les entrées XLR facilitent la connexion des micros dynamiques faible impédance, et l'alimentation fantôme 48 V permet d'utiliser des micros à condensateur.

• Chacune des voies micro/ligne des TXM16 et TXM20 est équipée d'un Jack d'insertion pratique permettant de relier des effets externes, et d'un égaliseur 3 bandes avec médiums paramétriques servant à corriger la réponse en fréquence du signal de chaque entrée.

• La TXM 16 dispose de trois départs auxiliaires : Les deux départs Aux sur chaque voie permettent de produire deux mixages de retour indépendants, et le départ EFX sert à acheminer le signal au pro-

cesseur multieffets intégré. La TXM 20 est équipée de quatre départs auxiliaires : Un départ Aux sert pour le mixage de retour, un deuxième départ Aux peut être utilisé pour les retours ou les effets (selon la position de la touche Pre/Post), et deux départs EFX supplémentaires permettent d'acheminer le signal aux deux processeurs.

• Un égaliseur graphique 9 bandes stéréo pour les sorties principales gauche et droite, et un égaliseur graphique mono 9 bandes pour la sortie Monitor, permettant d'obtenir un gain maximum avant Larsen.

• Une sortie Mono/Subwoofer avec filtre passe-bas réglable.

• Une entrée Tape/CD très pratique permettant de relier une source stéréo pour diffuser des morceaux ou de la musique de fond.

• Les circuits perfectionnés font appel à des ampli ficateurs opérationnels à faible bruit et des bus faible impédance permettant de garantir un son de qualité exceptionnelle.

• Le boîtier en acier ultra-résistant assure une fiabi lité inégalée soir après soir, concert après concert.

• Leur format compact et leurs poignées surdimen sionnées à prise sûre facilitent le transport.

• Une garantie étendue de trois ans.

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