Operation Manual

GL2
OPERATING MODE
The recessed GRP/AUX REV switch determines the
way in which the group signal path is arranged.
For conventional operation FRONT-OF-HOUSE
or RECORDING (switch up) the group mix is routed
to the main signal path through the insert, FADER and
MUTE switch to the balanced XLR output, while pro-
viding subgrouping, AFL monitoring, signal and PEAK
metering. The related aux mix routes through the rotary
SEND MASTER level control to the 1/4" jack aux
output, with AFL monitoring available, to provide an
effects or foldback send.
With the switch pressed (using a pen tip or similar) the
group and aux mix is reversed so that the signal path is
optimised for ON-STAGE MONITOR operation.
This feeds the aux mix through the main signal path to
provide a full feature balanced stage monitor send. In
this mode the group mix is rerouted to the related aux
jack output through its send master and is available for
additional monitor, effects or sub sends.
It is advisable to study the GL2 system block diagram to
fully understand this flexible routing arrangement.
GROUP
RETURN/SUBGROUP
To RETURN processed signals from external effects
devices or input additional line signals to the L-R mix,
or for TAPE MONITORING during multitracking,
set the RET/GRP switch to the up position. Use the
LEV and centre detented PAN controls to adjust the
level and stereo image.
SUBGROUPING enables several sounds to be com-
bined under control of a single fader and then routed to
the main L-R mix. To set up a subgroup route the
required channels to a group, press the GRPswitch, and
adjust LEV and PAN for the desired level and stereo
image in the L-R mix. Using the channel and subgroup
PAN controls it is possible to set up mono or stereo
subgroups.
CONTROL OF THE OUTPUTS
The main outputs (group or aux mode as selected) are
controlled by the 100mm long throw FADERS which
offer a further 10dB boost above the normal '0' operating
position. MUTE switches off the output.
Pressing AFL routes the post-fader signal to the console
monitor/meter system to check sound quality and mix
level. The AFL signal is pre-mute to allow the output to
be muted if required while checking the signal.
Each main output has a dedicated post-fader LED
metering system. SIG responds dynamically to the
audio signal starting to illuminate around -20dB level.
0dB turns on at the console 0dB level (-2dBu internal).
PEAK warns of potential overload 5dB before clipping.