The Behringer MDX4400 — Interactive Reference-Class 4-Channel Compressor/Limiter/Peak Limiter — was built to put serious signal-processing power into everyday studios, live rigs, and broadcast racks. It pairs the kind of features once reserved for high-end outboard with the practical, road-ready engineering Behringer is known for.

Key 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

Although this model is no longer in current production, it remains a recognized name in its category and continues to appear in working racks, project studios, and live rigs around the world. For owners maintaining a MDX4400 in their signal chain, this listing is preserved as a legacy reference covering its original design intent and feature set. Behringer products are engineered to deliver professional results without the professional price tag, putting serious tools in the hands of working musicians, project studios, and live engineers alike.