Vintage Tube Compressor
Blend valves and FETs for quality compression. The Drawmer 1968 MkII is a 1RU Tube/FET 'stereo bus' compressor which by design delivers a transparent 'open' sound even during periods of heavy compression.
The original Drawmer 1960 used a tube stage at the front of the compressor, however the 1968 MkII utilisies a J-FET (Field Effect Transistor) gain reduction circuit that operates faster than an opto-isolator. The 1968 compressor uses a 12AX7 tube makeup gain amplifier where you can add, with the Output Gain control, up to 20 dB of additional gain. The need for a ratio control has been removed as the compressor operates on the soft knee principle where the onset of compression is progressive.
The Controls
The 1968 MkII expands attack times to six choices: 2, 9, 15, 25, 30 and 50 ms. Release times come in three fixed times (100ms, 500 ms and 1 second) and three program-dependent choices -- 200 ms to 2 sec, 500 ms to 5 sec and 1 to 10 seconds -- all program-dependent and automatic.
The 1968 MkII provides full sidechain access for connecting an external equalizer for vocal stressing or de-essing.
Featured on both channels is a switchable 'BIG' and 'BIGGER' mode which applies less processing to the fundamental low frequency but still disciplines the upward associated harmonics which if untamed can result in a 'boomy' or 'boxy' sound. The result - a solid bottom end with enhanced sub-bass and a smoother, wider frequency response overall. This lets the operator use more compression on an overall mix with less pumping action caused by a kick and/or bass instrument.
Output
The outputs of Channels 1 and 2 are monitored on two yellow illuminated VU meters - with a red warning glow to signify 'approaching clipping'. A three-position switch adjusts the meters to show either normal output level, gain reduction or VU +10dB mode, which re-scales the meter for users working at 'hot' output levels.
An output switch selects normal compressor output, hard-wired bypass and sidechain listen.