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manual abstract
If noise occurs, use the telephone away from the unit. • XLR-type connectors are wired as follows: pin 1: ground, pin 2: hot (+), and pin 3: cold (-). • The performance of components with moving contacts, such switches, rotary controls, faders, and connectors, deteriorates over time. The rate of deterioration depends on the operating environment and is unavoidable. Consult your dealer about replacing defective components. MV12/6 — Owner’s Manual 2 MV12/6 Features Contents • The MV12/6 offers 12 input channels that can be mixed into stereo, monaural, or to four group outputs. • A MONITOR jack offers easy connection to a sub amp for monitoring. It allows monitoring of the main stereo output, TAPE IN input and the signals from groups 1-2, 3-4. • The mixer is equipped with a highly efficient, built-in digital effects section. The built-in effects allow you to create professional sounding mixes without the need of additional equipment. An EFFECT SEND jack is also supplied to allow the use of external effectors. • Two AUX SEND/RETURN jacks are provided. Two separate AUX buses can be used as sends for external effectors or a monitor system. • The mixer supplies phantom power to provide easy connection of condenser microphones that require an external power source. • The mixer is equipped with INSERT IN, INSERT OUT jacks for input channels 1-4 allowing individual effects to be inserted into individual channels. • Input Channels 1-8 are equipped with XLR type input jacks. A three- way selector switch allows compatibility with a wide range of sources such as condenser microphones that need an external power source, regular dynamic microphones, line level devices, etc. Input Channels 9-12 are equipped with stereo line input jacks • The main input and output jacks are also equipped with Euro-block connectors. These connectors facilitate the installation of the mixer as a permanent fixture in halls, etc. • TAPE IN jacks and REC OUT jacks offer easy connection of tape decks for playback and recording. Front & Rear Panels ............................ 3 Channel Control Section ........................ 3 Master Control Section .......................... 5 Connector Panel .................................... 7 About the Accessories ...................... 11 Applications .......................................... 12 Supplement .......................................... 14 Specifications ....................................... 14 Dimensions .......................................... 16 Block and Level Diagrams.................... 17 Caution: When the unit is installed in a rack The main unit’s power switch is located on the rear panel of the unit. When installed in a rack, please use the external power switch on a power distributor, etc. Power distributor, etc. MV12/6 — Owner’s Manual Front & Rear Panels 3 Front & Rear Panels 3 s Channel Control Section Channels 1-8 Channels 9-12 q GAIN Control (Monaural) (Stereo) Adjusts the input level of the signal entering the mixer to an optimum level. To obtain an optimum balance between the S/N ratio and qytoueirw dynamic range, adjust the level so that the PEAK Indicator w occasionally lights. -60 to -16 indicates the MIC input adjustment level, -34 to +10 indicates the LINE input adjustment level. * The Input Select Switch located on the Connector Panel provides settings for the type of mic or device that is connected to the INPUT jack (refer to page 7). w PEAK Indicator The indicator detects peaks in the signal after it has passed the EQ. The indicator will light red when the level reaches +17dB to warn that clipping is imminent. e Equalizer Provides +/-15dB of control over high, mid and low frequency t ranges at the center frequencies listed below. HIGH : 10kHz (shelving) MID : 2.5 kHz (peaking) LOW : 100Hz (shelving) Frequency response will be flat when the knob is positioned at “G”. r +20 +15 +10 20 100 1k 10k 20k Response [dB] +5 i 0 –5 –10 –15 –20 Frequency [Hz] r AUX1, AUX2 Controls t POST Switch Individually controls the level of the signal sent from each channel to the AUX1 and AUX2 buses. The signal taken from before the channel fader is sent to AUX1. Depending upon the POST switch setting, the signal taken from either before (POST Switch = ?) or after (POST Switch = >) the channel fader is sent to AUX2. When a stereo channel is used, L and R signals are combined and sent to the AUX1 and AUX2 buses. MV12/6 — Owner’s Manual 4 Front & Rear Panels y EFFECT Control Controls the level of the signal sent from each channel to the EFFECT bus. This control is located after the channel fader so its level will also be affected by the channel fader setting. When a stereo channel is used, L and R channel signals are combined and sent to the EFFECT bus. u PAN Control (CH1-8) BAL Control (CH9-12) The PAN control knobs set the position within the stereo field of each signal that is sent to the GROUP bus 1-2, GROUP bus 3-4 and STEREO bus L-R. The BAL control knobs set the balance between lef...