Alesis 12R manual Connections, Inputs, Cable common sense

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Connections

CONNECTIONS

Inputs

Cable common sense

Make all connections to the Multimix 12R with the power turned off wherever possible. If you must connect or disconnect inputs while power is on, make sure the channel fader and [TRIM] are turned all the way down to avoid sudden pops and clicks which may damage speakers or other equipment.

Use good-quality cable: 99% of all mixer problems turn out to be cable or connector problems. Use the best quality cable you can, for highest reliability and lowest noise. If something goes wrong, check the cable and its connection to the mixer first. If the connectors are dirty or corroded, clean them with isopropyl alcohol or other approved electrical contact cleaner before inserting them into the Multimix 12R. High quality cables are low-capacitance shielded cables with a stranded (not solid) internal conductor and a low-resistance shield. Although quality cables cost more, they do make a difference.

Route cables in your system correctly by observing the following precautions:

•Do not bundle audio cables with AC power cords.

•Avoid running audio cables, or placing the Multimix 12R itself, near sources of electromagnetic interference such as transformers, monitors, computers, etc.

•Never unplug a cable by pulling on the wire itself. Always unplug by firmly grasping the body of the plug and pulling directly outward.

•Do not place cables where they can be stepped on. Stepping on a cable may not cause immediate damage, but it can compress the insulation between the center conductor and shield (degrading performance), or reduce the cable’s reliability.

•Avoid twisting the cable or having it make sharp, right angle turns.

Multimix 12R Reference Manual

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Contents Reference Manual Page Important Safety Instructions Page Page Page Page Page CE Declaration Of Conformity Front Panel Table of Contents Applications Dimensional DrawingIntroduction Using this manualAlesis Multimix 12R Microphone Preamplifier/Mixer ConventionsGrounding Instructions Unpacking InstallationAC power Mounting Use clean powerPower switch Cable common sense ConnectionsInputs Microphone Inputs Phantom power Line-level devices synthesizers, CD players, video Phantom Power will not be Used Tape in jacks Phonograph turntables About stereo effect devices How to connect effect devices and signal processorsEffects via Aux Send and Aux Return Using Aux 1 as an effects send Connecting an in-line processor Connections To a stereo PA system or instrument amplifier OutputsTo a mono system To a stage monitor foldback systemTo a stereo tape recorder To another mixerIn-line Adat recording To an Adat multitrack recorderUsing two Multimix 12Rs for more flexibility Connections Monitor Out PhonesConnections Before turning the mixer on, zero out the controls Operating InstructionsPeak LED method Setting input trim levelsMetering/Unity Gain method Unity gain points Typical Fader and Control LevelsTrim gain ranges Aux Send levelsProper gain staging of other equipment AUX System Effects Send/Receive How to Set Aux Send and Return LevelsPage Output distortion Using the meterSystem noise ground loops, hum, induced noise Avoiding noise① to Eliminate HUM if the Above has Failed Page Operating Instructions Tracking/Overdubbing ApplicationsMultitrack recording Mixdown Using the High and LOW EQ controls Monitoring AUX 1 in the Phones jack Troubleshooting Index TroubleshootingPage Refer All Servicing to Qualified Technicians Maintenance/ServiceExterior cleaning Frequency Response SpecificationsConnectors Impedance LevelsDistortion THD+N PowerNoise performance typical Dimensional Drawing Block Diagram Level diagram Tape IndexWarranty / Contact Alesis Contact Information
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