WMD MSCL
MSCL, from WMD, is a compact Stereo Compressor designed as a master compressor to help glue ones mix together. It is based off the DBX "Over Easy" style compressor, with attack and release knobs, output gain, and a master Compression knob which decreases threshold, increases gain and ratio with just one turn. Also included is a Limiter, which can be switched on to make the MSCL act as a peak limiter. A threshold switch can change the settings to function with signals with different volumes. 
MSCL FEATURES
Stereo Compressor in 4 HP
Sidechain input for classic ducking sounds
Easy and intuitive design
Threshold switch lets you compress modular level signals as well as lower level sources
Limit switch limits the makeup gain on the comp knob to make compressor act more like a peak limiter