Manual Yamaha MG124C (page 13 of 24) (English)

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Front & Rear Panels

MG124CX/MG124C Owner’s Manual

Reference

7 Switch (High Pass Filter)

This switch toggles the HPF on or off. To turn the HPF on,

press the switch in ( ). The HPF cuts frequencies below 80

Hz (the HPF does not apply to the line inputs of stereo input

channels

34).

8 COMP Control

Adjusts the amount of compression applied to the channel.

As the knob is turned to the right the compression ratio

increases while the output gain is automatically adjusted

accordingly. The result is smoother, more even dynamics

because louder signals are attenuated while the overall level

is boosted.

Avoid setting the compression too high, as the the

higher average output level that results may lead to

feedback.

9 PEAK Indicator

The peak level of the post-EQ signal is detected, and the

PEAK indicator lights red when the level reaches 3 dB below

clipping. For XLR-equipped stereo input channels (5/6 and

7/8), both the post-EQ and post-mic-amp peak levels are

detected, and the indicator lights red if either of these levels

reaches 3 dB below clipping.

0 Equalizer (HIGH, MID, and LOW)

This three-band equalizer adjusts the channel’s high, mid,

and low frequency bands. Channels 9/10 and 11/12 have two

bands: high and low. Setting the knob to the t position pro-

duces a ﬂat response in the corresponding band. Turning the

knob to the right boosts the corresponding frequency band,

while turning to the left attenuates the band. The following

table shows the EQ type, frequency, and maximum cut/boost

for each of the three bands.

A AUX (AUX1) Control

Adjusts the level of the signal sent from the channel to the

AUX (AUX1) bus. The knob should generally be set close to

the t position.

On stereo channels, the signals from the L (odd) and R

(even) channels are mixed and sent to the AUX (AUX1) bus.

To send the signal to the buses set the ON switch to

on ( ).

B AUX PRE Switch

Selects whether the pre-fader or the post-fader signal is fed

to the AUX (AUX1) bus. If the switch is on ( ), the mixer

sends the pre-fader signal (the signal immediately prior to

the Channel fader

I) to the AUX (AUX1) bus, so that AUX

(AUX1) output is not affected by the fader. If the switch is

off ( ) the mixer sends the post-fader signal to the AUX

(AUX1) bus.

C EFFECT (AUX2) Controls

Adjusts the level of the signal sent from the channel to the

EFFECT (AUX2) bus. Note that the signal level sent to the

bus is also affected by the Channel fader. On stereo channels

(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

(AUX2) bus.

D 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 stereo positioning of the

channel 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 input to the L input (odd channel) go to the

Group 1 bus or to the Stereo L bus; signals input to the R

input (even channel) go to the Group 2 bus or the Stereo R

bus.

On channels where this knob provides both PAN and

BAL control (channels 5/6 and 7/8), the knob oper-

ates as a PAN control when input is received via the

MIC jack or L (MONO) input only, and as a BAL

control when input is received via both L and R

inputs.

E ON Switch

Turn this switch on to send the signal to the buses. The

switch lights orange when on.

F PFL (Pre-Fader Listen) Switch

This switch lets you monitor the channel’s pre-fader signal.

Press the switch in ( ) so that it lights to turn it on. When

the switch is on the channel pre-fader signal is output to the

PHONES and MONITOR OUT

I jacks for monitoring.

G 1-2 Switch

This switch assigns the channel’s signal to the Group 1 and 2

buses.

To send the signal to the Group buses engage the ON

switch ( ).

H ST Switch

This switch assigns the channel’s signal to the Stereo L and

R buses.

To send the signal to the Stereo buses engage the ON

switch ( ).

I Channel Fader

Adjusts the level of the channel signal. Use these faders to

adjust the balance between the various channels.

Set the fader sliders for unused channels all the way

down to minimize noise.

Band Type Frequency

Maximum

Cut/Boost

HIGH Shelving 10 kHz

±15 dBMID Peaking 2.5 kHz

LOW Shelving 100 Hz

NOTE

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Yamaha MG124C Manual

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