a stereo compressor and side-ducker in one.
Same as former compST module, but:
sidechain input has it's own peakfollower, treshold, ratio, attack and release that lowers the treshold of the stereo compressor.
This way the stereo compressor has normal behavior in compressing the stereo signal, allowing a fat bass, but will be ducked when for example the basskick kicks in.
Works really nice with a distortion behind it too (when sidechaining a bass with a kick).