Drawmer 1973 Three Band Stereo FET Compressor - Manual (Page 7)

7 DRAWMER 1973 O
PERATOR’S M ANUAL
LOW BAND, MID BAND, HIGH BAND
Threshold: infinity - -32dB all bands
Determines the level below which compression starts to take
place. The 1973 incorporates a Soft Knee, more compression is
applied automatically as the input signal level increases, negating
the need for a Ratio control.
Attack: see below diagram all bands
Controls the speed that the compressor responds to signals that
exceed the level set by threshold. Six switchable Attack settings.
All times are nominal, the actual attack time is further modified
by the release setting chosen.
Release: see below diagram all bands
Sets the time taken for the signal to return to normal after the input level has fallen below threshold.
The first three switch positions are fixed and provide progressively increasing release times, while positions F(ast),
M(id) and S(low) cause the release times to vary in a manner which automatically adapts to the dynamics of the
incoming signal.
Gain: -10 - +20dB all bands
During compression the signal is attenuated, gain may be required to produce the required output level. In addition,
as the 1973 is multi-band, the three gain controls are used to adjust the levels of each band to obtain a desirable
overall signal, or to bring out the bass, treble etc.
Gain Reduction Meter: -1,-2,-3,-5,-7,-10,-15,-20dB all bands
Use the meter as a guide to how much gain to re-apply using the Gain control .
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Release Presets
Attack Presets
The following diagram provides a good, but general, idea of some useful frequencies that will aid in setting the
crossover frequencies:
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