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Owner’s Manual
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X 18R / X 20R Owner’s Manual Important Precautions Service Information This symbol is used to alert 1 the operator to follow important Should you ever need to ship the unit, procedures and precautions use only the original factory packing. Opening the unit will expose you to poten- detailed in documentation. tially dangerous voltages. There are no user For replacement packaging, call Crest Audio’s This symbol is used to warn opera- serviceable parts inside. Customer Service
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Intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. Risk of electrical shock — DO NOT OPEN! To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servi
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When using electrical products, basic cautions should always be followed, including the following: 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any of the ventilation openings. Install in accordance with manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including
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Beim Einsatz von Elektrogeräten müssen u.a. grundlegende Vorsichtsmaßnahmen befolgt werden: 1. Lesen Sie sich diese Anweisungen durch. 2. Bewahren Sie diese Anweisungen auf. 3. Beachten Sie alle Warnungen. 4. Befolgen Sie alle Anweisungen. 5. Setzen Sie dieses Gerät nicht in der Nähe von Wasser ein. 6. Reinigen Sie es nur mit einem trockenen Tuch. 7. Blockieren Sie keine der Lüftungsöffnungen. Führen Sie die Installation gemäß den Anweisungen des Herstellers durch. 8. Installieren Sie das G
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L’utilisation de tout appareil électrique doit être soumise aux precautions d’usage incluant: 1. Lire ces instructions. 2. Gardez ce manuel pour de futures références. 3. Prétez attention aux messages de précautions de ce manuel. 4. Suivez ces instructions. 5. N’utilisez pas cette unité proche de plans d’eau. 6. N’utilisez qu’un tissu sec pour le nettoyage de votre unité. 7. N’obstruez pas les systèmes de refroidissement de votre unité et installez votre unité en fonction des instructions de
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Cuando use productos electrónicos, debe tomar precauciones básicas, incluyendo las siguientes: 1. Lea estas instrucciones. 2. Guarde estas instrucciones. 3. Haga caso de todos los consejos. 4. Siga todas las instrucciones. 5. No usar este aparato cerca del agua. 6. Limpiar solamente con una tela seca. 7. No bloquear ninguna de las salidas de ventilación. Instalar de acuerdo a las instrucciones del fabricante. 8. No instalar cerca de ninguna fuente de calor como radiadores, estufas, hornos u ot
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Table Of Contents Mono Input Channels P. 12 Introduction 1 Stereo Input Channels P.22 2 Master Section P .32 3 Specifications P. 53 4
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X 18R/20R Block Diagram
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How To Use This Manual Format This manual uses a format that is intended to be easy to read, yet technical enough for those who need to know all the details. For feature descriptions, this is done by devoting the left side of each page to 1) an overall module picture, 2) a block diagram, and 3) a control closeup. These images all pertain to the features and control descriptions on the right side of the page. The intention is to make the manual easy to read while including all the technical d
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1 Module Controls Block Diagram
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1 Front Panel Features
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1 Module Controls Block Diagram
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1 Front Panel Features Equalizer (EQ)
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1 Module Block Diagram Controls
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1 AUX Send Features
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1 Module Block Diagram Controls
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1 Bus Assignment Features
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1 Connectors Rear Panel Block Diagram