User Guide

SSL EV2/ User Guide
6
Dynamics Section Controls
The dynamics section consists of a soft-knee compressor/limiter and an expander/gate.
Dynamics can be switched to pre-equalizer (default) or post-equalizer (CH OUT).
Although the same gain change circuitry is used for both the compressor/limiter and the
expander/gate, two dedicated gain reduction LEDs display activity for each device.
Automatic gain makeup, calculated from the Ratio and Threshold settings of the
compressor, is applied by the compressor to maintain a steady output level. The default
compressor attack time is program-sensitive, responding to the audio material’s
wavefront.
The dynamics section’s threshold circuitry uses variable hysteresis, which allows the
signal to decay below its opening level. (Hysteresis is the lag between making a change
in input, such as increasing or decreasing power, and the response or effect of that
change.) This enables program-dependent dynamic processing.
Compressor (white knobs)
• The compressor’s Ratio/Slope can be set from 1 to infinity (limiter).
• The Threshold is variably adjustable from +10 dB to -20 dB.
• When the Attack time switch is set to Slow (F.ATK off), attack time is auto-
sensing and program dependent. Fast setting (F.ATK) attack time is 1 ms.
• Release time is adjustable from 0.1 second to 4 seconds.