Installation, Unpacking, AC power | Alesis 12R manual

Installation

INSTALLATION

Unpacking

The Multimix 12R box should contain:

1.The mixer itself

2.A packet of literature along with this manual

3.An AC power cable

AC power

READ ALL SAFETY WARNINGS IN THE PREVIOUS SECTION OF THIS MANUAL TO ENSURE SAFE OPERATION OF THIS UNIT. Connect the Multimix 12R to the specified power using the AC cable supplied with the unit. The AC cable is removable. If the distance to your AC outlet is longer or shorter than the supplied cable, you may substitute an approved standard NEMA-to-CEE power cable of the correct length, available from most electronics stores.

Grounding

CONNECT THE MULTIMIX 12R TO A PROPERLY GROUNDED OUTLET ONLY. DO NOT USE ADAPTERS WHICH REMOVE THE SAFETY GROUND PROTECTION OR CUT OFF THE GROUNDING PRONG ON THE POWER CORD. Proper grounding is essential for user safety and low noise. If you experience 60-cycle hum in your sound system as a result of different ground potentials between different units in your system, plug all units into the same AC circuit (if the total power load allows) and make sure other devices in the system are properly grounded themselves. The Multimix 12R features balanced inputs and outputs, so if it is properly connected to other balanced units, AC ground potentials will not affect the audio. If you cannot get rid of ground loops, consult a professional electrician familiar with sound system power designs.

Multimix 12R Reference Manual

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Alesis 12R manual Installation, Unpacking, AC power

Contents

Reference Manual Page Important Safety Instructions Page Page Page Page Page CE Declaration Of Conformity Front Panel Table of Contents Applications Dimensional Drawing Conventions Using this manualIntroduction Alesis Multimix 12R Microphone Preamplifier/Mixer Grounding Instructions Installation AC powerUnpacking Use clean power Power switchMounting Connections InputsCable common sense Microphone Inputs Phantom power Line-level devices synthesizers, CD players, video Phantom Power will not be Used Tape in jacks Phonograph turntables How to connect effect devices and signal processors Effects via Aux Send and Aux ReturnAbout stereo effect devices Using Aux 1 as an effects send Connecting an in-line processor Connections To a stage monitor foldback system OutputsTo a stereo PA system or instrument amplifier To a mono system To a stereo tape recorder To another mixer In-line Adat recording To an Adat multitrack recorder Using two Multimix 12Rs for more flexibility Connections Monitor Out Phones Connections Before turning the mixer on, zero out the controls Operating Instructions Peak LED method Setting input trim levels Metering/Unity Gain method Aux Send levels Typical Fader and Control LevelsUnity gain points Trim gain ranges Proper gain staging of other equipment AUX System Effects Send/Receive How to Set Aux Send and Return LevelsPage Output distortion Using the meter System noise ground loops, hum, induced noise Avoiding noise ① to Eliminate HUM if the Above has Failed Page Operating Instructions Applications Multitrack recordingTracking/Overdubbing Mixdown Using the High and LOW EQ controls Monitoring AUX 1 in the Phones jack Troubleshooting Index TroubleshootingPage Maintenance/Service Exterior cleaningRefer All Servicing to Qualified Technicians Specifications ConnectorsFrequency Response Impedance Levels Power Noise performance typicalDistortion THD+N Dimensional Drawing Block Diagram Level diagram Tape Index Warranty / Contact Alesis Contact Information