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Output Group/ Stereo Input Module
Stereo Input
The Stereo Input section has been designed to offer a full-featured effects return
capability, or to provide additional line level inputs, saving valuable input modules.
1
The input GAIN control allows the sensitivity of the balanced line level inputs
to be adjusted from+ IOdB to -20d8.
2
The MTR switch selects the source for the 16-segment LED meter in the
overbridge from either the post-fade post-CUT group (switch released) or the
Stereo Input (switch pressed). When selected, both Land R signals are fed to the
meter, and the highest level is displayed.
3
The PHASE of the left input can be reversed by the
(L)0
switch. This switch
should normally be released.
4
A centre detented WIDTH control varies the width of the stereo image from
mono (fully anticlockwise), through stereo at the centre detent, to phase-enhanced
wide stereo (fully clockwise).
Auxiliary sends
5
There are two AUX SEND controls. These are normally sourced from a
post-fade mono sum, but are switchable to a pre-fade, post-mute mono sum by the
PRE switch. The AUX I level control can be routed to Aux bus 3 by the 3 switch,
and the AUX 2 level control can be routed to Aux bus 4 by the 4 switch.
Routing Matrix .
6
The post-fade signal feeds the centre detented active BAL (balance) control,
. which has unity gain for both channels in the centre position. The outputs of this
control feed the group ROUTING SWITCHES which route in pairs to groups
1-2. 3-4. 5-6. 7-8. and via the L/R switch to the stereo mix bus.
Pressing the MONO switch feeds a post-fade, pre-balance mono sum to the mono
bus.
7
The illuminated CUT switch, in conjunction with the 8 MUTE bus switches
(12) and Solo-in-Place system control whether the Stereo Input is ON or muted.
Pressing the CUT switch will always mute the stereo input.
8
The
PFL
switch allows the pre-CUT, pre-fade signal to be monitored.
PFL
feeds a mono sum signal to the PFL bus and changes the central monitoring over
to listen to the selected Stereo Input without muting anything else.
9
A red PEAK LED illuminates when there is a level of +14dBu or greater
present at two critical points: the output ofline input amplifier and a point pre-fade,
post CUT.
10
A green -30dB LED illuminates when a level of -30dBu or greater is present
at the output of the line input amplifier.
These LEDs illuminate when the internal level of either the left or right channel
exceeds the stated threshold levels.
VCA Group/Group
Output/Stereo
Input module
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