Peavey X-VCA - Manual (Page 47)

group dynamics section
The X-VCA Audio Group and Master modules include a number of features
for flexible dynamic control of signal levels. On Group modules, the com-
pressor and gate functions may be engaged separately or simultaneously. For
a comprehensive discussion of these features, see Section on Dynamics
Control Operation.
gate
The gate is used to attenuate or silence the signal when it's level falls below
a selected point (threshold).
THRESHOLD (THR) control (center knob of dual concentric control)
Adjusts the point at which any DECREASE in input signal level will
cause a further reduction in output level (gain) as determined by the ratio
control setting. Threshold may be set between -20db and -60db (and
below).
RATIO control (outside of dual concentric control)
Adjusts the proportion of output signal in relation to input signal
when operating BELOW the set gate threshold level. Ratio may be adjusted
from 1:1 to above 1:5. Gating demonstrates "soft knee" characteristics.
compressor
The compressor is used to reduce a signals dynamic range by the selected
ratio. It can also be configured to limit the signals output level.
GAIN (make up) control
Adjusts to make up for apparent gain loss due to compression of input
signals. In the Solo Pre position (default), the output of the dynamics sec-
tion can be viewed before the VCA control system fader. The gain control
should be adjusted to show near 0 reference level when normal signals are
present. The GAIN control has a range of 0db to +20db.
RATIO control
Adjusts the proportion of output signal in relation to input signal above
the set threshold level. The ratio of input to output signal may be adjusted
from 1:1 to greater than 20:1 (hard limiting).
THRESHOLD (THR) control
Adjusts point at which any increase in input signal to the
compressor/limiter section will cause a reduction in output level at a rate
determined by the ratio control setting. The threshold may be set between
-45db and +15db.
COMP-GATE stereo link
Links the odd and even GROUP's dynamics sections for stereo opera-
tion. The GROUP with the highest amount of auto-attenuation controls the
dynamics sections for both groups in the odd/even pair.
p. 47
group module
NOTE: This dynamics
section is intended for
use by an experienced oper-
ator. It's best to be familiar
with compressors and lim-
iters before using them in
critical applications!
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