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MIXER Owner’s Manual Thank you for purchasing the YAMAHA MV12/6 Mixer. The MV12/6 mixer is designed to provide the user with an ideal balance of operability, functionality, and simplicity. In order to get the most out of your MV12/6 mixer and its functions, and to enjoy years of trouble-free use, please read this Owner’s Manual thoroughly and keep it in a safe place for future reference. Keep This Manual For Future Reference.  FCC INFORMATION (U.S.A.) 1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class “B” digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit “OFF” and “ON”, please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena Park, CA 90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries. WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or coloured GREEN and YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. * This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.) LTD. MV12/6 — Owner’s Manual  Important 1 Important Read the following before operating the MV12/6 Warnings • Do not place a container with liquid or small metal objects on top of this unit. Liquid or metal objects inside this unit are a fire and electrical shock hazard. • Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result. • Connect this unit’s power cord only to an AC outlet of the type stated in this Owner’s Manual or as marked on the unit. Failure to do so is a fire and electrical shock hazard. • Do not scratch, bend, twist, pull, or heat the power cord. A damaged power cord is a fire and electrical shock hazard. • Do not place heavy objects, including this unit, on top of the power cord. A damaged power cord is a fire and electrical shock hazard. In particular, be careful not to place heavy objects on a power cord covered by a carpet. • If you notice any abnormality, such as smoke, odor, or noise, or if a foreign object or liquid gets inside the unit, turn it off immediately. Remove the power cord from the AC outlet. Consult your dealer for repair. Using the unit in this condition is a fire and electrical shock hazard. • Should this unit be dropped or the cabinet be damaged, turn the power switch off, remove the power plug from the AC outlet, and contact your dealer. If you continue using the unit without heeding this instruction, fire or electrical shock may result. • If the power cord is damaged (i.e., cut or a bare wire is exposed), ask your dealer for a replacement. Using the unit with a damaged power cord is a fire and electrical shock hazard. • Do not remove the unit’s cover. You could receive an electrical shock. If you think internal inspection, maintenance, or repair is necessary, contact your dealer. • Do not modify the unit. Doing so is a fire and electrical shock hazard. • If lightning begins to occur, turn off the power switch of the unit as soon as possible, and unplug the power cable plug from the electrical outlet. • If there is a possibility of lightning, do not touch the power cable plug if it is still connected. Doing so may be an electrical shock hazard. Cautions • When rack-mounting the unit, allow enough free space around the unit for normal ventilation. This should be: 10 cm at the sides, 15 cm behind, and 15 cm above. For normal ventilation during use, remove the rear of the rack or open a ventilation hole. If the airflow is not adequate, the unit will heat up inside and may cause a fire. • Hold the power cord plug when disconnecting it from an AC outlet. Never pull the cord. A damaged power cord is a potential fire and electrical shock hazard. • Do not touch the power plug with wet hands. Doing so is a potential electrical shock hazard. Operating Notes • Using a mobile telephone near this unit may induce noise. 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. Front & Rear Panels ............................ 3 • 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. Channel Control Section ........................ 3 • 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. Master Control Section .......................... 5 Connector Panel .................................... 7 About the Accessories ...................... 11 Applications .......................................... 12 Supplement .......................................... 14 Specifications ....................................... 14 Dimensions .......................................... 16 Block and Level Diagrams .................... 17 • Input Channels 1-8 are equipped with XLR type input jacks. A threeway 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. 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 Channel Control Section Channels 1-8 (Monaural) q GAIN Control Channels 9-12 (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 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. q w * 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). e 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. r t e Equalizer t y Provides +/-15dB of control over high, mid and low frequency 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”. u +20 +15 +10 i i Response [dB] r +5 0 –5 –10 –15 –20 o 20 100 1k Frequency [Hz] 10k 20k 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 left and right channels and assigns the signals that are received at INPUT L (CH9, 11) to GROUP buses 1/3 or STEREO bus L, and the signals received at INPUT R (CH10, 12) to GROUP buses 2/4 or STEREO bus R. i GROUP, ST Select Switches Used to send the signal of each channel to the GROUP bus 1-2, GROUP bus 3-4 and STEREO bus L-R. When the switch is ON (>), the signal is sent to the relative bus. o Channel Fader Controls the output level of the input channel signal and adjusts the volume balance between channels. MIC(+48V) MIC LINE GROUP1 GROUP2 GROUP3 GROUP4 STEREO L STEREO R AUX1 AUX2 EFFECT * Levels of unused faders should be lowered. +48V [0dB] 1-2 PEAK PAN INPUT [-60~+10dB] PAD [0dB] HA Hi Lo GAIN Mid 1~4ch BA 3-Stage EQ CH INPUT [0dB] 3-4 Ch.Fader [-10dB] ST [-60dB~-16dB] [-34dB~+10dB] INSERT OUT [0dB] [-6dB] AUX1 INSERT IN BA [0dB] POST AUX2 EFFECT MIC(+48V) MIC LINE +48V [0dB] 1-2 PEAK PAN INPUT CH INPUT [-60~+10dB] PAD [0dB] HA BA 3-Stage EQ [0dB] 3-4 Hi Lo GAIN Mid 5~8ch Ch.Fader [-10dB] ST [-60dB~-16dB] [-34dB~+10dB] [-6dB] AUX1 POST AUX2 EFFECT [0dB] Hi GAIN L BA 3-Stage EQ Lo [0dB] Mid HA ST Ch.Fader PEAK [-10dB] [-34dB~+10dB] ST INPUT [0dB] 1-2 BAL 3-4 ST BA 9/10ch, 11/12ch [-34~+10dB] [-6dB] R HA AUX1 3-Stage EQ SUM POST AUX2 EFFECT MV12/6 — Owner’s Manual  Front & Rear Panels 5 Master Control Section q ST Master Fader !4 !1 Controls the level of the signal that is sent to the ST OUT jacks. !2 !5 w MONO Control Controls the level of the signal (the monaural signal that is formed by combining the signals from the STEREO bus) that is sent to the MONO OUT jack. e GROUP 1-4 Faders r TO ST Switch !3 o y !0 t u i w Controls the level of the GROUP 1-4 signals, and sends the signals to their respective GROUP OUTPUT 1-4 jacks. Also, when the TO ST switch is ON (>), the signals whose levels are controlled by the GROUP faders are also sent to the STEREO bus. t SEND • AUX1, AUX2 Controls Controls the individual levels of the AUX1 and AUX2 signals that are sent to the AUX1 SEND jack and AUX2 SEND jack. • EFFECT Control Controls the level of the EFFECT bus signal that is sent to the EFFECT SEND jack. * This control is not related to, and has no affect on the signal that is sent from the EFFECT bus to the built-in digital effects. y RETURN • AUX1, AUX2 Controls Controls the levels of the signals (mixed, L with R) that are sent to the AUX1 and AUX2 buses from the RETURN L (MONO) and R jacks. q e r • GROUP/ST Control Controls the level of the signal that is sent from the RETURN L(MONO)/R jacks to the GROUP buses 1-4 and the stereo bus. • GROUP, ST Select Switches Sends the signal from the RETURN L(MONO)/R jacks to GROUP buses 1-4 and the Stereo bus. When the switch is ON (>), the signal is sent to its corresponding buses. * The signal from the RETURN L jack is sent to GROUP buses 1 and 3, and the signal from the RETURN R jack is sent to GROUP buses 2 and 4. * When only the RETURN L(MONO) jack is used, the same signal is also sent to the STEREO bus L/R and GROUP buses 1-4. MV12/6 — Owner’s Manual  6 Front & Rear Panels u DIGITAL EFFECT • PROGRAM Select Switch Selects a program from the built-in digital effects. VOCAL ECHO 1 VOCAL ECHO 2 VOCAL ECHO 3 VOCAL ECHO 4 VOCAL REVERB 1 VOCAL REVERB 2 VOCAL REVERB 3 VOCAL REVERB 4 HALL 1 HALL 2 HALL 3 ROOM PLATE 1 PLATE 2 PLATE 3 GATE REVERB • PARAMETER Control Controls parameters (effect level, speed, etc.) of the selected effect program. • ON Switch Switches the built-in digital effect ON (>) or OFF (?). When set to OFF, the signal from the built-in effect is not sent. • AUX1, AUX2 Control Controls the level of the signal that is sent from the built-in digital effects to the AUX1 and AUX2 buses. • GROUP/ST Control Controls the level of the signal that is sent from the built-in digital effects to GROUP buses 1-4 and the STEREO bus. • GROUP, ST Select Switches Sends the signal from the built-in digital effects to GROUP buses 1-4 and the STEREO bus. When the switch is ON (>), the signal is sent to its corresponding buses. i TAPE IN Control Controls the level of the signal that is sent from the TAPE IN jack to the STEREO bus. o ST GRAPHIC EQUALIZER A stereo 7-band graphic equalizer that offers tone adjustment to the signal that is output to the ST OUT jacks. A +/-12dB boost or cut is provided at each of the frequency bands 125, 250, 500, 1k, 2k, 4k and 8kHz. !0 PHONES/MONITOR Output and Meter Select Switch Selects the signal that is sent to the MONITOR jack, PHONES jack and the level meter. The three switches are used in combination to select TAPE IN, ST, GROUP 1-2 and GROUP 3-4 signals. Signal TAPE IN ST GROUP 1-2 GROUP 3-4 ? 1-2 > 3-4 N/A N/A ? 1-2 > 3-4 Switch > GROUP N/A ? ST > GROUP > GROUP ? ST ? > TAPE IN > TAPE IN ? ? ? !1 PHONES/MONITOR Control Controls the level of the signal that is sent to the MONITOR jack and PHONES jack. !2 PHONES Jack This is a stereo phone type jack for connecting a pair of headphones (nominal output/impedance of 3mW/40Ω). Use the !0 PHONES/MONITOR output and meter select switch to select the source to be monitored with the headphones. !3 LEVEL Meter The LEDs indicate the output level of the signal selected with the PHONES/MONITOR output and Meter Select Switch !0. “0” indicates a nominal level, and the PEAK indicator will light when clipping is imminent. !4 POWER Indicator The indicator will light when the main unit’s power is ON. !5 LAMP Connector A XLR type lamp (AC or DC12V, 0.5A Max) can be attached here. Refer to the Block Diagram on page 17. MV12/6 — Owner’s Manual  Front & Rear Panels 7 Connector Panel y t i u !0 w er o !1 !3 !0 !2 !1 o w q q INPUT Jacks (CH 1-8) Both balanced XLR type and Euro-block connectors are supplied. • XLR Type (1:Ground, 2:Hot, 3:Cold) • Euro-block connectors ( : Hot, : Cold, G: Ground) Use Input Select Switch to match the input to the type of mic or device connected to the INPUT jack. • MIC (+48V) Allows the connection of condenser mics, etc. Phantom power (DC +48V) is supplied to the No. 2 and No. 3 pins of the XLR jack and to the / pins on the Euro-block connector. * When phantom power is not used, make sure that the Input Select Switch is set to any position other than MIC (+48V). • MIC: Compatible with 50-600Ω microphones. • LINE: Compatible with 600Ω line level devices. w ST INPUT Jacks (CH 9-12) Both unbalanced RCA phono type stereo line input jacks and unbalanced Euro-block connectors are supplied. Both types are compatible with 600Ω line level devices. e INSERT IN Jacks (CH 1-4) r INSERT OUT Jacks (CH 1-4) These are input/output jacks that are positioned between the equalizer and fader of the Input Channel. The INSERT IN jacks are balanced phone type jacks with a nominal input/impedance of 0dB/600Ω. The INSERT OUT jacks are impedance balanced phone type jacks with a nominal output/impedance of 0dB/10kΩ. These jacks can be used to connect a graphic equalizer, compressor, noise filter, etc. MV12/6 — Owner’s Manual  8 Front & Rear Panels t SEND Jacks • AUX1, AUX2 These are impedance balanced phone type output jacks with a nominal output/impedance of +4dB/ 600Ω. The AUX1, 2 bus signals are output from their respective jacks. These jacks can be used to send the signal to monitor system such as a cue-box. • EFFECT This is an impedance balanced phone type output jack with a nominal output/impedance of +4dB/ 600Ω. The signal from the EFFECT bus is output from this jack. This jack can be used to send the signal to an external effector, etc. y RETURN L (MONO), R Jacks These are unbalanced phone type line input jacks with a nominal input level/impedance of +4dB/ 600Ω. The signal received by this jack is sent to GROUP buses 1-4, the STEREO bus and AUX1, AUX 2 buses. Normally these jacks are used to receive the return signal from an external effector such as reverb, delay, etc. but they can also be used as auxiliary stereo inputs. When only the L(MONO) jack is connected, the same signal is sent to both the R and L jacks as a monaural signal. u TAPE IN (L, R) Jacks These are line input jacks for monitoring an external DAT recorder or CD player. The signal that is received by these jacks is sent to the stereo bus. In this case, the TAPE IN control is used to adjust the input level. It is also possible to monitor directly from the MONITOR jack or PHONES jack by using the PHONES/MONITOR output and the Meter Select Switch (Master Control Section) to make the appropriate selection. i REC OUT (L, R) Jacks With an external DAT recorder or cassette recorder connected to these jacks, you can record the same signal that is sent from the ST OUT jacks. The signal sent from these jacks is not affected by the ST Mater Fader or Graphic EQ settings. Make recording level adjustments on the recording device. o GROUP OUT (1-4) Jacks Sends the signal from the GROUP 1-4 buses. These jacks are used to connect to the input jack on an MTR or an external mixer. Two types of jacks are provided; balanced phone type and Euro-block connectors. • Phone type (Tip: Hot, Ring: Cold, Sleeve: Ground) Nominal output/impedance +4dB/600Ω • Euro-block connector ( : Hot, : Cold, G: Ground) Nominal output/impedance +4dB/600Ω !0 ST OUT (L, R) Jacks These jacks deliver the stereo output of the mixed signal and are connected to a power amplifier, etc. that drives the main speakers. The output can also be used for recording of the signal with the level of the signal being controlled by the ST Master Fader. Two types of jacks are provided; balanced XLR type and Euro-block connectors. • XLR type (1: Ground, 2: Hot, 3: Cold) Nominal output/impedance +4dB/600Ω • Euro-block connector ( : Hot, : Cold, G: Ground) Nominal output/impedance +4dB/600Ω MV12/6 — Owner’s Manual  Front & Rear Panels 9 !1 MONO OUT Jack This signal is the monaural mix of the STEREO bus’s stereo signal. Its level is controlled with the MONO control. Two types of jacks are provided; balanced XLR type and Euro-block connectors. • XLR type (1: Ground, 2: Hot, 3: Cold) Nominal output/impedance +4dB/600Ω • Euro-block connector ( : Hot, : Cold, G: Ground) Nominal output/impedance +4dB/600Ω !2 MONITOR (L, R) Jacks This is an unbalanced Euro-block connector output jack for connecting a monitor system, etc. with a nominal output/impedance of +4dB/10kΩ. Use the PHONES/MONITOR output and meter select switch (Master Control Section) to select the source to be monitored. !3 POWER Switch When the switch is in the ON position, the unit is powered. When turning the power ON, first turn on the mixing console, then turn on the power amp or powered speakers that are connected to the mixer. Also, when turning the power OFF, turn off the power amp or powered speakers before turning off the mixing console. Connector polarity INPUT INPUT, ST OUT, MONO OUT Pin 1: ground Pin 2: hot (+) Pin 3: cold (–) INSERT IN, INSERT OUT, GROUP OUT, AUX 1/AUX 2/EFFECT SEND Tip: hot (+) Ring: cold (–) Sleeve: ground PHONES Tip: L Ring: R Sleeve: ground RETURN Tip: hot Sleeve: ground OUTPUT Ring Sleeve Tip Sleeve Tip MV12/6 — Owner’s Manual  10 Front & Rear Panels ■ Changing the connector panel’s location. The mixer allows attachment of the connector panel to either the rear or to the top-side of the mixer to provide optimum location of the connectors when installing the unit. The connector panel is attached on the rear of the unit when it is shipped from the factory. Remove the screws as shown in the illustration to change the location to the top-side. Please do not perform this operation yourself. ■ Attach a protector cover Use the nine screw holes located on the control panel to attach a protector cover as shown below. Please use M4 diameter screws with a length of 12mm or less. 8 190 226 8 Less than 12mm Control Panel 112.5 56.5 Less than 10mm 11 128 M4 Diameter MV12/6 — Owner’s Manual Units: mm  About the Accessories 11 About the Accessories Euro-block Connectors If you decide to use Euro-block connectors, please use the supplied connectors and attach as shown in the illustration below. q Turn the POWER switch OFF. w Loosen the screws holding the cover in place and remove the cover. e Attach the Euro-block connectors. Secure with a minus (-) driver. Euro-block connector 1. If the hole for the wire is closed, turn the screw on the top of the connector to the left to open. 2. Insert the wires according to the jack’s pole display, and turn the upper screw to the right to secure the wire. 3. Connect the Euro-block connector to the mixer’s jack. r Replace the cover and re-attach it in its original location. Caution: Electric shock may occur if the Euro-block connectors are used without the cover attached. Feet Four rubber feet are supplied with the mixer. According to the orientation that the device is installed, attach the rubber feet to the surface that is at the “bottom” of the mixer. After wiping any dust and grime on the surface of the mixer, remove the adhesive’s protective cover on the top of the feet and attach to the mixer. MV12/6 — Owner’s Manual  12 Applications Applications Example 1) Basic Setup Main Speakers Sub Woofer, etc. Monitor Speakers Effector Power Amplifier Power Amplifier INSERT OUT AUX 1 SEND Headphones AUX 2 (PRE) SEND Power Amplifier INSERT IN ST OUT MONO OUT PHONES TAPE IN CD Recorder, DAT, etc. REC OUT PHONES/MONITOR Output and Meter Select Switch Set the POST Switch to “?” (AUX2=PRE). GROUP, ST Select Switches Channel Faders ST Master Fader INPUT Microphone, Line Input GROUP 1-4 Faders Procedure q Connect line input devices or microphones to the INPUT jacks and connect a power amp, that is connected to the main speakers, to the ST OUT Jacks. w Use the GAIN Control on each channel to adjust the level of the input signal from the device or microphone that is connected to the input channel (refer to page 3), and use the Channel Fader to adjust the level of the output signal that is sent to the Master Section. Basically, you should set the Channel Fader close to the “0” position. e Press each channel’s “ST” GROUP, ST Select Switch. r Use the ST Master Fader to adjust the level of the signal sent to the power amplifier. Basically, you should set the Master Fader close to their “0” position. t Use the volume control(s) on the power amp to adjust the volume of the speakers. If necessary, use a monitoring device (a pair of headphones, monitor speakers, etc.). MV12/6 — Owner’s Manual  Applications 13 Example 2) Banquet Room Setup Using Independent Speakers Main Speaker R Side Speakers 2 4 Monitor Speakers 1 3 Side Speakers Main Speaker L Main Speakers Side Speakers Monitor Speakers Power Amplifier AUX 1 SEND CD recorder, tape deck, etc. Power Amplifier AUX 2 (PRE) SEND ST OUT REC OUT GROUP OUT  1  2  3  4 4CH Power Amplifier, etc. TAPE IN PHONES/MONITOR Output and Meter Select Switch Set the POST Switch to “?” (AUX2=PRE). Headphones GROUP, ST Select Switches PHONES Channel Faders ST Master Fader INPUT Microphone, Line Input GROUP 1-4 Faders Procedure q Connect line input devices or microphones to the INPUT jacks and connect a power amp, that is connected to the main speakers, to the ST OUT Jacks. Also, connect a 4CH Power Amplifier, etc. that drives the side speakers to the GROUP OUT (1-4) Jacks. w Use the GAIN Control on each channel to adjust the level of the input signal from the device or microphone that is connected to the input channel (refer to page 3), and use the Channel Fader to adjust the level of the output signal that is sent to the Master Section. Basically, you should set the Channel Fader close to the “0” position. e Press the “ST”, “1-2”, “3-4” GROUP, ST Select Switches on each channel. r Use the ST Master Fader and the GROUP 1-4 Faders to adjust each signal’s output level that is sent to the power amp. The fader’s “0” position is an average level. t Use the volume control on the power amp to adjust the speaker’s volume. If it is necessary, use monitor devices (a pair of headphones, monitor speaker, etc.) or recording devices. MV12/6 — Owner’s Manual  14 Supplement Supplement Specifications ■ General specifications Frequency response (CH MIC INPUT to ST, GROUP OUT/AUX, EFFECT SEND) 20Hz—20kHz +1dB, -3dB Total harmonic distortion (CH MIC INPUT to ST, GROUP OUT/AUX, EFFECT SEND) <0.1% (THD+N) @+14dB, 20Hz—20kHz, 600Ω Hum & Noise (Rs=150Ω, 20Hz—20kHz, INPUT GAIN Control=Max., Input Sensitivity=-60dB) -128dB Equivalent input noise -95dB Residual output noise -64dB (68dB S/N) ST OUT: Master fader and one channel fader at nominal level, channel assign switch ON. -90dB (94dB S/N) ST OUT: Master fader at nominal level, all channel assign switches OFF, all GROUP to ST switches OFF. -90dB (94dB S/N) GROUP OUT: Master fader at nominal level, all channel assign switches OFF. -84dB (88dB S/N) AUX SEND, EFFECT SEND: Master level control at nominal level, all channel send controls at minimum level. * Measured with 12.7kHz, -6dB/oct. low pass filter. (Equivalent to 20kHz, -∞dB/oct. filter.) @+4dB, 600Ω (INPUT GAIN Control at minimum level) Maximum voltage gain 60dB 84dB 84dB 94dB 76dB 86dB 58dB 58dB INPUT (MIC) to INSERT OUT INPUT (MIC) to GROUP OUT INPUT (MIC) to ST OUT (CH to ST) INPUT (MIC) to ST OUT (GROUP to ST) INPUT (MIC) to AUX1 SEND, AUX2 SEND (PRE) INPUT (MIC) to AUX2 SEND (POST) , EFFECT SEND INPUT (LINE) to ST OUT (CH to ST) ST INPUT to ST OUT (CH to ST) Monaural input gain control 44dB variable Stereo input gain control 44dB variable Crosstalk at 1kHz -70dB adjacent input -70dB input to output (CH INPUT) Input channel equalization ±15dB Maximum HIGH MID LOW 10kHz shelving 2.5kHz peaking 100Hz shelving * Turn over/Roll off frequency of shelving: 3dB below maximum variable level. Monaural and stereo input peak indicators Red: Each channel, when the level of the post EQ signal for each channel exceeds +17dB the indicator will light. Level meters 12 points LED x2 Graphic equalizer 7 bands (125, 250, 500, 1k, 2k, 4k, 8kHz) ±12dB Maximum Internal digital effect 16 types Phantom power +48V (balanced) : Supplied at the Input Select Switch = MIC(+48V) position Lamp connector XLR type (Lamp Compatibility: AC or DC12V, 0.5A Max) Power supply/Power consumption USA and Canadian: 120V AC 60Hz, 50W General: 230V AC 50Hz, 50W Dimensions (W x H x D) 482 x 308 x 192 mm (7U Rack Mount Size) Weight 9.0kg Accessories 3 pin Euro-block connectors: 18 Feet: 4 For European Model Purchaser/User Information specified in EN55103-1 and EN55103-2. Inrush Current: 10A Conformed Environment: E1, E2, E3 and E4 MV12/6 — Owner’s Manual 0dB=0.775Vrms  Supplement 15 ■ Input Specifications Input Input GAIN connectors Select Switch Control MIC (+48V) MIC INPUT (1-8) LINE Nominal impedance 3kΩ 50-600Ω mics & 600Ω lines -60 -34 MIC (+48V) MIC -16 LINE +10 ST INPUT (L, R) (9/10, 11/12) Input impedance -34 Input level Sensitivity *1 Nominal Max. before clipping -80 dB (0.078mV) -60 dB (0.775mV) -40 dB (7.75mV) -54 dB (1.55mV) -34 dB (15.5mV) -14 dB (155mV) -36 dB (12.3mV) -16 dB (123mV) +4 dB (1.23V) -10 dB (245mV) +10 dB (2.45V) +30 dB (24.5V) -54 dB (1.55mV) -34 dB (15.5mV) -14 dB (155mV) -10 dB (245mV) +10 dB (2.45V) +30 dB (24.5V) 10kΩ 600Ω lines RETURN (L, R) 10kΩ 600Ω lines -12 dB (195mV) +4 dB (1.23V) +20 dB (7.75V) TAPE IN (L, R) 10kΩ 600Ω lines -26 dBV (50.1mV) -10 dBV (316mV) +10 dBV (3.16V) INSERT IN (1-4) 10kΩ 600Ω lines -20 dB (77.5mV) 0 dB (0.775V) +20 dB (7.75V) +10 Connector type XLR-3-31 type *2 Euro-block connector *2 RCA phono jack *3 Euro-block connector *3 Phone jack (TRS) *3 RCA phono jack *3 Phone jack (TRS) *2 *1 Input sensitivity: the lowest level that will produce the nominal output level when the unit is set to maximum gain. *2 XLR type connector, Euro-block connector, phone jack (TRS) (T=Hot, R=Cold, S=Gnd): balanced type. *3 RCA phono jack, Euro-block connector, phone jack (TRS) (T=Signal, R= Gnd, S=Gnd): unbalanced type. • 0dB=0.775Vrms, 0dBV=1Vrms ■ Output Specifications Output level Output impedance Nominal impedance Nominal Max. before clipping ST OUT (L, R), MONO OUT 150Ω 600Ω lines +4 dB (1.23V) +24 dB (12.3V) XLR-3-32 type *1 Euro-block connector *1 AUX SEND (1, 2) EFFECT SEND 75Ω 600Ω lines +4 dB (1.23V) +20 dB (7.75V) Phone jack (TRS) *2 GROUP OUT (1-4) 150Ω 600Ω lines +4 dB (1.23V) +24 dB (12.3V) Phone jack (TRS) *3 Euro-block connector *1 MONITOR (L, R) 470Ω 10kΩ lines +4 dB (1.23V) +20 dB (7.75V) Euro-block connector *4 INSERT OUT (1-4) 600Ω 10kΩ lines 0 dB (0.775V) +20 dB (7.75V) Phone jack (TRS) *2 PHONES 100Ω 40Ω phones 3mW 75mW REC OUT (L, R) 600Ω 10kΩ lines -10 dBV (316mV) +10 dBV (3.16V) Output connectors *1 *2 *3 *4 *5 *6 Connector type ST phone jack (TRS) *5 RCA phono jack *6 XLR type connector, Euro-block connector: balanced type. Phone jack (TRS) (T=Hot, R=Cold, S=Gnd): impedance balanced type. Phone jack (TRS) (T=Hot, R=Cold, S=Gnd): balanced type. Euro-block connector: unbalanced type. ST phone jack (TRS) (T=L, R=R, S=Gnd): unbalanced type. RCA phono jack: unbalanced type. • 0dB=0.775Vrms, 0dBV=1Vrms Specifications are subject to change without prior notice. MV12/6 — Owner’s Manual  16 Supplement 308 18.7 192 Dimensions 482 Units: mm MV12/6 — Owner’s Manual  3-Stage EQ [+4dB] [-10dBV] TAPE IN PEAK R L/MONO RETURN 3-Stage EQ 3-Stage EQ +48V BA R L BA SUM BA [-10dB] DIGITAL EFFECT ON [0dB] [+4dB] Channel Fader BA BA BA BA [0dB] 1-2 AUX2 AUX1 GROUP/ST [-6dB] AUX2 AUX1 GROUP/ST [-2dB] TAPE IN [-6dB] EFFECT AUX2 AUX1 [-6dB] ST 3-4 1-2 EFFECT AUX2 AUX1 [-6dB] ST 3-4 [0dB] 1-2 EFFECT AUX2 AUX1 [-6dB] ST 3-4 TAPE IN [-10dBV] RETURN [+4dB] Max. Before Clip [0dB] POST POST POST BAL PAN PAN [0dB] [0dB] [0dB] ST Ch.Fader [-10dB] Ch.Fader PEAK [-10dB] [0dB] 1-2 ST 3-4 1-2 ST 3-4 RETURN to AUX/GROUP/STEREO [-2dB] CH & ST INPUT to AUX/EFFECT [-6dB] TAPE IN to STEREO [-6dB] DSP to AUX/GROUP/STEREO [-6dB] CH & ST INPUT to GROUP/STEREO [0dB] PARAMETER LO RO (INV) IN [-6dB] INV INV INV R L [-6dB] MONO [0dB] BA [+4dB] EFFECT SEND [+4dB] AUX2 SEND [+4dB] AUX1 SEND GEQ GEQ AUX SEND [+4dB] EFFECT SEND [+4dB] GROUP OUT 1 [+4dB] REC OUT [-10dBV] MONO OUT [+4dB] ST OUT R [+4dB] ST OUT L Max. Before Clip GROUP OUT [+4dB] [+4dB] GROUP OUT 4 [+4dB] GROUP OUT 3 [+4dB] GROUP OUT 2 [+4dB] GROUP Master Fader Max. Before Clip [-10dBV] REC OUT SUM BA [-10dB] AUX EFFECT Master Control EFFECT [-6dB] AUX2 [-6dB] DIGITAL EFFECT [0dB] [0dB] BA ST Master Fader TO ST BA AUX1 [0dB] [0dB] INV PROGRAM BA GROUP4 Fader [-10dB] [0dB] [0dB] [-10dB] [0dB] SUM SUM TO ST BA GROUP3 Fader INV SUM BA GROUP2 Fader [-10dB] [0dB] [0dB] [-10dB] [0dB] GROUP1 Fader SUM SUM SUM SUM SUM SUM ST Master Fader [-16dB] PHONES/ MONITOR BA BA Max. Before Clip TAPE IN DR DR PEAK PHONES/MONITOR [3mW@40ohms] PHONES [+4dB] MONITOR PHONES [3mW@40ohms] MONITOR [+4dB] [+4dB] PEAK LEVEL Meters(LED) ST OUT, MONO OUT [+4dB] MONO Master Control ST/GROUP G1-2/G3-4 –30dB –20dB –10dB 0dB +10dB +20dB +30dB -60dB –60dB –50dB ST INPUT GAIN Max.[-34dB] BA Ch.Fader PEAK Max. Before Clip ST INPUT GAIN Min.[+10dB] INSERT OUT [0dB] INSERT IN [0dB] HA [-34dB~+10dB] GAIN [0dB] [0dB] [-60dB~-16dB] [-34dB~+10dB] GAIN HA MIC(+48V) MIC LINE 3-Stage EQ –40dB INPUT(MIC) GAIN Max.[-60dB] R L HA PAD BA [-60dB~-16dB] [-34dB~+10dB] GAIN [0dB] -50dB INPUT(LINE) GAIN Max.[-34dB] INPUT(MIC) GAIN Min.[-16dB] INPUT(LINE) GAIN Min.[+10dB] 9/10ch, 11/12ch [-34~+10dB] ST INPUT [-60~+10dB] INPUT [0dB] INSERT IN [0dB] INSERT OUT HA +48V GROUP1 GROUP2 GROUP3 GROUP4 STEREO L STEREO R AUX1 AUX2 EFFECT GROUP1 GROUP2 GROUP3 GROUP4 STEREO L STEREO R AUX1 AUX2 EFFECT -40dB -30dB -20dB -10dB 0dB +10dB +20dB +30dB 5~8ch CH INPUT 1~4ch CH INPUT PAD Lo Hi Hi [-60~+10dB] Hi Lo Lo INPUT Mid Mid Mid MIC(+48V) MIC LINE Supplement 17 Block and Level Diagrams MV12/6 — Owner’s Manual  YAMAHA CORPORATION V639260 R2 1 CP 20 NP Printed in Taiwan Pro Audio & Digital Musical Instrument Division P.O. Box 3, Hamamatsu, 430-8651, Japan