Behringer MDX2400, High-End, Interactive, 4-Channel Compressor/LimiterCondition:* Used, Removed From Service In Working Condition.* Tested Fine For Basic Operation. As Pictured.Additional Notes:* Extremely Cost-Effective Dynamic Processor* 4 Channels of outstanding compression and limiting* IKA (Interactive Knee Adaptation) compressor concept combines the advantages of “hard knee” and “soft knee” characteristics* Protective limiter* Program-dependent attack and release times* Soft/hard knee selector* Ratio, Threshold and Output controls* Accurate 8-segment gain reduction meters* Servo-balanced ” TRS and XLR connectors* High-quality components and exceptionally rugged construction ensure long lifeBehringer MDX2400