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Front & Rear Panels

MG12/4FX

18

6

PRE Switch

Selects whether the pre-fader or the post-fader signal is
fed to the AUX bus. If you set the switch on (

), the

mixer sends the pre-fader signal (the signal prior to pas-
sage through channel fader 

B

) to the AUX bus, so that

AUX output is not affected by the fader. If you set the
switch off (

) the mixer sends the post-fader signal to

the AUX bus.

7

EFFECT Controls

Adjusts the level of the signal sent from the channel to
the EFFECT bus. Note that the signal level to the bus is
also affected by the fader. If you are using stereo chan-
nels (CHs 5/6, 7/8, 9/10, or 11/12), the signals from the
L (odd) and R (even) channels are mixed and then sent to
the EFFECT bus.

8

PAN Control (1 to 4)
PAN/BAL Control (5/6 and 7/8)
BAL Control (9/10 and 11/12)

The PAN control determines the positioning of the chan-
nel’s signal on the Group 1 and 2 buses or on the Stereo
L and R buses. 
The BAL control knob sets the balance between left and
right channels. Signals into to the L input (odd channel)
feed to the Group 1 bus or to the Stereo L bus; signals
into the R input (even channel) feed to the Group 2 bus
or the Stereo R bus.

On channels where this knob provides both PAN
and BAL controls (5/6 and 7/8), the knob operates
as a PAN control if you are inputting through the
MIC jack or into the L (MONO) input only, and
operates as a BAL control if you are inputting into
both L and R inputs.

9

ST Switch

This switch assigns the channel’s signal to the Stereo L
and R buses. To send the signal to the Stereo bus, set the
switch on by pressing it in (

). The switch lights up

orange to indicate that it is on.

0

PFL (Pre-Fader Listen) Switch

This switch lets you monitor the channel’s pre-fader sig-
nal. To set the switch on, press it in (

) so that it lights

up. When the switch is on, the mixer outputs the chan-
nel’s pre-fader signal to the PHONES and C-R OUT
jacks, for monitoring.

A

GROUP Switch

Use this switch to assign the channel’s signal to the
Group output. Press the switch in (

) to output the sig-

nal to the Group 1 and 2 buses.

Allows you to output the signal to the buses
regardless of the setting of the ST switch

 

9

.

B

Channel Fader

Adjusts the output level of the signal being input to the
channel. Use these faders to adjust the volume balance
among the various channels. 

To  reduce noise, set the fader sliders for unused
channels all the way down.

NOTE

NOTE

NOTE

Содержание MG12/4FX

Страница 1: ...MIXING CONSOLE MIXING CONSOLE Owner s Manual Owner s Manual Making the Most Of Your Mixer Pages 6 to 16 EN...

Страница 2: ...precautions include but are not limited to the following Remove the electric plug from the outlet when the device is not to be used for extended periods of time or during electrical storms When remov...

Страница 3: ...MATION 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 Modifica tions not expressly approv...

Страница 4: ...6 Specifications 26 Dimensional Diagrams 28 Block Diagram and Level Diagram 29 Features Input Channels page 21 With up to six mic line inputs or up to four stereo inputs the MG12 4FX can simultaneousl...

Страница 5: ...standard household power outlet Be sure to unplug the adaptor from the outlet when not using the mixer or when there are light ning storms in the area To avoid generating unwanted noise make sure the...

Страница 6: ...isn t used much these days besides it s too easily confusable with phone jacks below RCA pin jacks are always unbalanced and generally carry a line level signal at 10 dB nominal You re most likely to...

Страница 7: ...asically confined to your desktop and all connections are no more than a meter or two in length then unbalanced lines are fine unless you re surrounded by extremely high levels of electromagnetic nois...

Страница 8: ...ustic sound pressure levels as well as electronic signal levels To make matters worse there are a number of variations dBu dBV dBm Fortunately you don t need to be an expert to make things work Here a...

Страница 9: ...or a full blown 4 band parametric EQ When boost is applied the EQ stage also has gain You can actually overload the input channel by applying too much EQ boost It s usually better to cut than boost 3...

Страница 10: ...t the amount of noise added by each stage is usually not dependent to any significant degree on the level of the audio signal passing through the circuit This means that the bigger the desired signal...

Страница 11: ...to each channel one at a time have singers sing players play and playback devices play back at the loudest expected level Gradually turn up the input gain control while the signal is being applied to...

Страница 12: ...Monitor Mixes and Groups pre post A pre fader signal is taken from a point before the channel fader so the send level is affected only by the AUX send level control and not by the channel fader Pre f...

Страница 13: ...aders simultaneously Group buses usually also have their own outputs so you can send the group signal to a different external destination from the main mix Channel faders Assigned to Group Controlled...

Страница 14: ...er to a specific channel although they can be used with just about any type of in out processor Channel insert jacks must be used with a special insert cable that has a TRS phone jack on one end and m...

Страница 15: ...the bass and drums to support the overall sound Example2 Funky R B Groove The approach will be totally different if you re mixing a funky R B number that centers on the groove In this case most engine...

Страница 16: ...boost is that it adds gain to the signal increasing noise and potentially over loading the subsequent circuitry 5 4 Ambience Judicious application of reverb and or delay via the mixer s AUX busses can...

Страница 17: ...set ting the mixer does not apply this HPF to the line inputs of stereo input channels 4 Equalizer HIGH MID and LOW This three band equalizer adjusts the channel s high mid and low frequency bands Se...

Страница 18: ...en channel feed to the Group 2 bus or the Stereo R bus On channels where this knob provides both PAN and BAL controls 5 6 and 7 8 the knob operates as a PAN control if you are inputting through the MI...

Страница 19: ...identical signal to both the L and R Stereo buses 6 2TR IN Control Adjusts the level of the signal sent from the 2TR IN jack to the Stereo bus 7 PHANTOM 48 V Switch This switch toggles phantom power o...

Страница 20: ...ct to be applied You can select from 16 effects as shown in the table PARAMETER Control Adjusts the parameter depth speed etc for the selected effect The mixer saves the last value used with each effe...

Страница 21: ...ible phase conflicts with other signals 3 Channel Input Jacks These are unbalanced stereo line input jacks Two jack types are provided phone type CHs 5 6 to 11 12 and RCA pin type CHs 9 10 11 12 Where...

Страница 22: ...rding device side 0 2TR IN Jacks These RCA pin jacks input a stereo sound source Use these jacks when you want to connect a CD or DAT directly to the mixer for monitoring You can adjust the signal lev...

Страница 23: ...you may use either one of these jacks but you may not use both at the same time Please connect to only one of these jacks on each channel To avoid causing damage to speakers power up the devices in t...

Страница 24: ...I Microphones Monitor Speakers Internal Power Amp CD Cassette or DAT Recorder Synthesizer Effector Bass CD Player Microphones Headphones Main Speakers External Example of Speaker Arrangement Audience...

Страница 25: ...rts are screwed onto the unit Use a screwdriver to remove these supports Turn the supports over and fasten them into place again using the same screws Mount the unit into the rack and fasten it into p...

Страница 26: ...H to ST 62 2 dB CH MIC INPUT to AUX SEND PRE 76 dB CH MIC INPUT to AUX SEND POST EFFECT SEND 86 dB CH LINE INPUT to GROUP OUT ST OUT CH to ST 58 dB ST CH MIC INPUT to GROUP OUT ST OUT CH to ST 84 dB S...

Страница 27: ...0 dBu 0 078 mV 60 dBu 0 775 mV 40 dBu 7 75 mV XLR 3 31 type balanced 16 36 dBu 12 3 mV 16 dBu 123 mV 10 dBu 245 mV ST CH LINE INPUT CH5 L CH6 R CH7 L CH8 R 34 10 k 600 line 54 dBu 1 55 mV 34 dBu 15 5...

Страница 28: ...Appendix MG12 4FX 28 Dimensional Diagrams 317 4 416 6 325 6 102 6 2 108 322 480 322 When mounted on rack Unit mm...

Страница 29: ...Appendix MG12 4FX 29 Block Diagram and Level Diagram...

Страница 30: ...MG12 4FX 30 MEMO...

Страница 31: ...no Italy Tel 02 935 771 SPAIN PORTUGAL Yamaha Hazen M sica S A Ctra de la Coruna km 17 200 28230 Las Rozas Madrid Spain Tel 91 639 8888 SWEDEN Yamaha Scandinavia AB J A Wettergrens Gata 1 Box 30053 S...

Страница 32: ...cal Instrument Division Yamaha Corporation 2004 Yamaha Corporation WC71270 408CRAP8 3 01A0 Printed in China Yamaha Pro Audio global web site http www yamahaproaudio com Yamaha Manual Library http www2...

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