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MX12/6, 20/6 — Owner’s Manual

Applications

9

Applications

Example 1) Sound Reinforcement for a live

performance

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 2), 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 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.), a recording device,
effector, etc.

ST OUT

AUX 1
SEND

AUX 2 (PRE)
SEND

INSERT I/O

C-R/PHONES

TAPE IN

REC OUT

RETURN

EFFECT
SEND

INPUT

GROUP OUT

1 – 4

MONO OUT

Microphone, Line Input

GROUP 1-4 Faders

CD Recorder, DAT, etc.

Sub Woofer, etc.

Main Speakers

Effector

Power Amplifier

Power Amplifier

Effector

ST Master Fader

C-R/PHONES Output and Meter Select Switch

Monitor Speakers

Headphones

Set the POST Switch to “

?

(AUX2=PRE).

Group Select Switches

Channel Faders

Power Amplifier

MTR

Summary of Contents for MX12/6

Page 1: ...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 connec tion of condenser microphones that require an external power source The mixer is equipped with INSERT I O jac...

Page 2: ... 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 m...

Page 3: ...ng 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 modi...

Page 4: ...ent level 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 ranges at the center frequencies listed below HIGH 10kHz shelving MID 2 5 kHz peaking LOW 100Hz shelving Frequency response will be flat when th...

Page 5: ...d 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 Levels of unused faders should be lowered Front Rear Panels 3 CH INPUT MX12 6 1 4ch MX20 6 1 8ch MIC INPUT 60 16dB LINE INPUT 34 10dB INSE...

Page 6: ...so 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 ...

Page 7: ...zer 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 C R PHONES Output and Meter Select Switch Selects the signal that is sent to the C R 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 HALL 1 HALL...

Page 8: ... jacks for an individual input channel Please use only one or the other jack e ST OUT L R Jacks Balanced XLR type output jacks with a nominal output impedance of 4dB 600Ω These jacks deliver stereo output of the mixed signal and are connected to a power amplifier etc that drives the main speakers The outputs can also be used for recording with the level of the signal controlled by the ST Master Fa...

Page 9: ...nal PHANTOM switch for channels 9 16 Turn the switch ON when you are using condenser microphones etc When the switch is ON 48V DC is supplied to pins 2 and 3 of the XLR type MIC INPUT connectors If phantom power is not required make sure the switch is set to the OFF position Rear Panel q e r t y w u i to the INSERT I O jack to the input jack of the external processor to the output jack of the exte...

Page 10: ... The signal received by these jacks is sent to the STEREO bus In this case the TAPE IN control is used to adjust the input level of the signal You can also monitor directly from the C R PHONES jack by making the appropriate selection with the C R PHONES Output and Meter Select Switch Master Control Section u REC OUT L R Jacks With an external DAT recorder or cassette recorder connected to these ja...

Page 11: ...channel s ST GROUP 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 a recording device effector etc ST OUT AUX 1 SEND A...

Page 12: ...hat is sent to the Master Section Basically you should set the Channel Fader close to the 0 position Recording q Select the channels you want to record to the computer by pressing their 3 4 GROUP Select Switches Also select the channels you want to monitor by pressing their 1 2 GROUP Select Switches w Use the GROUP 3 4 Faders to adjust the level of the signal sent to the computer Do not press the ...

Page 13: ...B input to output CH INPUT Input channel equalization 15dB Maximum HIGH 10kHz shelving MID 2 5kHz peaking LOW 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 Meters 12 points LED x2 Graphic equalizer 7 bands ...

Page 14: ... phone jack TRS T Hot R Cold S Gnd balanced type 3 Phone jack unbalanced type 4 Phone jack I O T Out R In S Gnd unbalanced type 5 n 8 MX12 6 n 16 MX20 6 6 n 4 MX12 6 n 8 MX20 6 7 9 10 11 12 MX12 6 17 18 19 20 MX20 6 0dB 0 775Vrms 0dBV 1Vrms Output Specifications Output connectors Output Nominal Output level Connector type impedance impedance Nominal Max before clipping ST OUT L R MONO OUT 150Ω 600...

Page 15: ... 6 5 8ch MX20 6 9 16ch MIC INPUT 60 16dB LINE INPUT 34 10dB from DC Power Supply PHANTOM 8ch sw PAD HA GAIN 60dB 16dB 34dB 10dB 0dB Lo Mid Hi 3 Stage EQ PEAK Ch Fader 10dB BA 0dB 0dB 1 2 3 4 ST 6dB PAN POST AUX1 AUX2 EFFECT ST INPUT MX12 6 9 10ch 11 12ch MX20 6 17 18ch 19 20ch 34 10dB L R HA HA 0dB GAIN 34dB 10dB 3 Stage EQ Lo Mid Hi 3 Stage EQ PEAK BA BA ST Ch Fader 10dB 0dB SUM BAL 0dB POST 1 2 ...

Page 16: ...YAMAHA CORPORATION Pro Audio Digital Musical Instrument Division P O Box 3 Hamamatsu 430 8651 Japan V629990 R2 1 CP 16 NP Printed in Taiwan ...

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