10-slot 500 Series Chassis with LED Current Consumption Meter, XLR, and 1/4" TRS I/O, Variable-position Screw Holes, Double-shielded Internal Power Supply, (2) 500 Series Processors with "True Tape" Silk/Texture Circuitry, and (2) 500 Series Diode-Bridge Compressor with Stepped Controls, Onboard Parallel Processing, Sidechain Highpass Filter, and Stereo Linking