C2
Operators Manual
Page 7
Front Panel Familiarisation
Level Meter:
Dependant on the setting of the
‘METER’ switch, this will display the
instantaneous available headroom, at either
the input to the channel (analogue to digital
converter) or the output from the channel,
post limiter (digital to analogue converter).
Active Key:
Switches the entire channel on/off – LED illuminated when processing is
active. All metering and status LEDs for the channel dim when the channel is
bypassed.
Threshold Control:
Set the threshold at which compression will begin, from
-30dBu to +22dBu (effectively off).
Meter Key:
Select what the level meter shows – either input headroom or output
headroom. Still active even when the channel is bypassed.
Ratio Control:
Set the degree of compression to take place, once
the signal exceeds the threshold, from 1:1 (no compression) to 16:1
(very heavy compression)
Knee Key:
Cycles through ‘Hard’ knee (compression begins at the
selected ratio as soon as the threshold is exceeded), ‘Medium’
(compression is less pronounced just above threshold), and ‘Soft’
knee (compression is least pronounced until well over threshold).
Gain Reduction Meter:
Green LEDs show 6dB and
3dB
below
the threshold of compression, with the yellow
LED illuminating as the threshold is reached. The
remaining red LEDs indicate progressively more gain
reduction (compression) up to 24dB.
AUTO
Key:
Enable the automatic time constants – in
compressor mode these are preselected to provide
transparent compression in as many situations as possible. In De-EQ mode, time
constants track the filter frequency.
Attack Control:
Adjust how quickly compression starts after threshold is exceeded.
The [-60uS] setting uses ‘look-ahead’ delay to preempt the signal going over the
threshold and so prevents any overshoot.
Release Control:
Adjust how quickly the gain reduction decreases once the signal
drops below the threshold again.
Summary of Contents for C2
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