Behringer MDX 4400 Multicom Pro Audio Interactive Quad Dynamics Processor Dynamic processor from Behringer. Model number is MDX4400. This device appears to be in good condition. Please see photos for condition, there are some minor surface signs of wear. It has been power tested and works. Come with power cord only. Product Features IKA (Interactive Knee Adaptation) compressor concept combines the advantages of "hard knee" and "soft knee" characteristics Switchable high-pass filter in control signal path avoids low-frequency signals from dominating compressor action Compression characteristics switchable between IKA and "hard knee" characteristics IGC (Interactive Gain Control) peak limiter combines clipper with program limiter circuits Extremely low-noise operational amplifiers and high-grade VCAs High-quality detented potentiometers and backlit switches Stereo Couple function for channels 1/2 and 3/4 selectable with real sum of RMS output Accurate 8-segment LED meters for input level, output level and gain reduction Operating level switchable from +4 dBu to -10 dBV Servo-balanced inputs and outputs featuring 1/4" jacks and XLR connectors High-quality components and exceptionally rugged construction ensure long life