Output Compressor - Solid State Logic SL 9000 J Series Operator's Manual

SL 9000 J Console Operator's Manual

Output Compressor

The main output compressor uses the same VCAs as the main fader. Switching the
compressor IN introduces no additional audio circuitry to the main outputs.
This is a high quality 4-channel
compressor with
controls. The gain MAKE-UP simply acts
as a level control to compensate for the
lowered level which is a consequence of
compressing the signal. This control may
be set so as not to change the overall
programme level when the compressor is
switched in. The meter indicates dBs of
gain reduction.
Insert points (patchrows L&M 1-4) are
provided pre the VCAs. The compressor
side chain is fed from the insert return.
Selecting KEY bypasses the insert,
allowing the insert return to be used as a
key input. All four insert returns are
summed to generate one sidechain
control voltage, allowing the key input to
be triggered by single or multiple signals.
5-6
straightforward
dB
C O M PR ESS IO N
-20 +20
THRESHOLD
1 3
.3 10
.1 30
ATTACK - mS
4 20
2
RATIO
COMPRESSOR
0
+
MAKE-UP
.3 .6 1.2
.1
AUTO
RELEASE - S
KEY
IN
22.12.94