Manual Allen-Heath GL 2400 (page 19 of 40) (English)

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GL2400 User Guide 19

The GROUP / AUX Masters

AUX MASTERS

Each aux mix has a master level control that

adjusts the output level to match external equipment, or trims the

monitor, effect or other send without affecting the mix balance. Up to

+10dB boost is available above the normal 0dB position. Note that

this becomes the group or master in monitor mode.

AUX AFL Press AFL to listen to the post-level aux mix in the

headphones and local monitor without affecting the main outputs.

The console monitor meters are interrupted with the aux (group)

signal. The yellow indicator lights to show that AFL has been selected

on the master. Use AFL to check the signal being sent to the

monitors, effects or other destination. AFL is pre-mute so that you can

check the signal before sending it to its destination.

REV mode switch These switches reverse the function of the

group and aux masters, the heart of the dual functionality pioneered

by Allen & Heath. They are recessed to prevent accidental operation.

Use a pen or pointed object to set their position. In the up position

(flush with the panel), the group is controlled by the fader and the aux

by the rotary master. This is typical for FOH mode

where the faders

are used for subgroups feeding the main stereo mix. When pressed,

the aux uses the fader as the master and the group is moved to the

rotary control. The aux mix is now presented to rear Group XLR

complete with insert. The group mix appears at the Aux TRS jack.

This is used for monitor mode

where the auxes are the main mix

feeding the stage monitors. You can select any combination for the

FOH and monitor mode, for example, just 3, 4 giving you two fader

subgroups, two monitor sends on faders, and main LR mix.

Note: The groups always feed the matrix and the subgroup controls

(PAN and GRP TO LR) regardless of mode. This means the group mix

can still perform a useful function when the console is configured in

monitor mode.

PAN Positions the group signal between L and R in the stereo mix

when the GRP TO LR switch is pressed. Using pan you can create

mono or stereo groups positioned as you require in the main mix. For

stereo grouping, set the odd group pan fully to the left, and the even

group pan fully to the right. The centre position (mono image) is

detented for quick resetting. Note that the group mix always feeds

these subgroup controls regardless of FOH or monitor mode selected.

METER A 4 LED bar meter displays the post-fade group signal

(FOH mode), or aux signal (monitor mode, REV pressed).

MUTE When pressed the group (aux) signal is turned off. This

affects the feed to the output XLR, LR and matrix. The red indicator

lights when the channel is muted.

GROUP AFL Press AFL to listen to the post-fade, pre-mute group

mix in the headphones and local monitor without affecting the main

outputs. Note that this becomes the aux mix in monitor mode. The

console monitor meters are interrupted with the group (aux) signal.

The yellow indicator lights to show that AFL has been selected on that

master.

GROUP FADER A 100mm smooth travel fader controls the group

mix output level. Note that it becomes the aux mix master in monitor

mode (REV pressed). The fader provides +10dB maximum boost

above its normal unity gain 0dB position.

REV

AFL

MUTE

GRP1

PAN

TO LR

PK!

SIG

AUX

+10

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Allen-Heath GL 2400 Manual

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