Allen&Heath GS3000 - Manual (Page 19)

GS3000 U SER G UIDE 19
M
ASTER
& M
ONITOR
The 12 segment L-R bargraph meters normally monitor the post-fade L-R mix or the
two-track return depending on the position of the 2TRK1/2/3 switches. Pressing any
PFL/AFL button on the console will override the monitor with the selected PFL/AFL
signal. A large red PFL/AFL active LED indicator illuminates to warn when a PFL or
AFL switch has been pressed.
Meterbridge source – if the optional meterbridge is fitted, press this switch to
globally switch the meters to follow the channel small fader (tape out) signal path.
When not selected the meters follow the monitor (tape in) signal path.
Group Output level – with the switch in the up position the nominal operating output
level for the 8 groups is +4dBu (high level). If the switch is pressed using a pen tip or
similar the nominal operating output level is –10dBV (low level). This is an underpanel
switch to prevent accidental operation.
OSCILLATOR
The internal sinewave oscillator provides two fixed frequencies of 1kHz and 10kHz.
The 1kHz is normally used for lining up the tape machine as the sinewave output is
routed to the group outputs. With the osc switch ON, press TALK TO GRPS and
adjust the group levels to check the line up of the connected multitrack tape machine.
The 10kHz sinewave can be used for setting the bias of an analogue tape machine,
or for checking the HF response of connected equipment.
The above procedures can also be performed for the 2 track machines by pressing,
TALK TO GRPS and then routing the signal via the group L-R switch and selecting
the 2TRK switches. Make sure the L-R meters read 0.
T ALKBACK
A talkback mic is built into the front panel. Talkback buttons are located in various
positions in the master section to enable the engineer to talk to a number of
destinations; aux sends, mix busses, studio loudspeakers and foldback. The talkback
signal can also be routed to the multitrack for recording take information on to tape.
Press and hold these buttons for talkback. The control room speaker levels will be
dimmed to prevent feedback. The TALK LEVEL controls the talkback mic input level.
T WO T RACK M ASTERING
Up to 3 two-track tape machines can be connected to the GS3000 with full dubbing
capability. The nominal operating level for Tape machine 1 (2TRK1) is +4dBu (high
level) on rear panel XLR connectors and for Tape machines 2 & 3 (2TRK2 & 2TRK3)
is -10dBV (low level) on phono connectors.
With the switches in the up position the L-R mix output is routed to all 3 Tape
machines. This is the normal position for stereo recording.
DUB 2


1 – routes the playback output from Tape machine 2 to the inputs of Tape
machine 1. This does not affect any other console mixing operation in progress.
DUB 1


2 – routes the playback output from Tape machine 1 to the inputs of Tape
machine 2. This does not affect any other console mixing operation in progress.
DUB 1


3 – routes the playback output from Tape machine 1 to the inputs of Tape
machine 3. This does not affect any other console mixing operation in progress.








!





TALK TO GRPS



 
 !
 !
 !


ALL UP= L-R
0 10





10 0


" 
GROUP
10 0
10 0
 



#




#




METERBRIDGE SOURCE


 !

 
OUTPUT
LEVEL
MIX