Solid State Logic X-Rack Stereo Dynamics Module For X-Rack/Mynx, Stereo version of the SSL channel dynamics, independent Compressor/ Limiter and Expander/Gate circuits, +4dBu Operating Level, Balanced Stereo Line 6,3mm Jack Input and Output, RMS or Peak Sense Stereo Compressor/Limiter, Dedicated Gain Reduction Metering, Independently switched Gate/Expander, External Key Input 6,3mm Jack, Link function for multiple modules