Switchable IKA (Interactive Knee Adaptation) program-adaptive compression circuitry combines the advantages of hard-knee and soft-knee characteristics. Integrated De-esser with switchable male/female voice recognition removes excessive sibilance from your vocal tracks. IGC (Interactive Gain Control) peak limiting circuitry combines clipper and program limiter for reliable and inaudible protection against signal peaks. Switchable dynamic Enhancer for brilliant, lively audio even with heavy compression. IRC (Interactive Ratio Control) expander/gate circuitry for virtually inaudible noise suppression. Switchable Tube simulation for the extra warmth and transparency of classic tube circuitry. Automatically or manually adjustable attack and release times. Switchable Low contour filter prevents "pumping" due to low-frequency dominated compression. Stereo couple function with independent output level settings. Switchable side chain input with monitor function. Separate 12-segment LED meters for input/output levels and gain reduction. Dedicated "traffic light" Threshold and De-esser level displays. Servo-balanced inputs and outputs with ¼" TRS and gold-plated XLR connectors. Relay-controlled hard bypass switch with auto bypass function in case of power failure. Internal switch-mode power supply (100 - 240 V~) for noise-free audio and low power consumption.