The Behringer COMPOSER PRO-XL MDX2600 V2 is a 1 RU dual-channel dynamics processor offering an array of switchable circuits and modes optimized for versatile mixing enhancement of instruments and vocals in studios and live stage applications. Link the channels when dealing with stereo sources such as drum overheads, or configure them independently for separate inputs such as lead and backing vocals. Each channel boasts an expander/gate, a compressor, two-stage peak limiting, an integrated de-esser, a dynamic enhancer, and a tube simulator. Adjust attack and release times manually, or set them to auto mode for easier setup. Variable controls are also provided for threshold, ratio, output gain, de-esser level, and limiter level. The rear panel presents balanced XLR and 1/4" I/O, a dedicated switch for +4 dBu or -10 dBV operating levels, and 1/4" sidechain sends and returns, which allow processing of the internal sidechain through outboard gear, or routing an external sidechain into the MDX2600 V2. Additional sidechain functions include a listen mode and a switchable high-pass filter for fine-tuning your trigger signal. Features: Visually monitor input/output levels and gain reduction via 12-segment LED meters, de-esser level suppression via four-segment LEDs, and signal-to-threshold indication, and limiter activity. 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 mode removes excessive sibilance from 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 boosts treble only during compression for lively audio even during heavy gain reduction IRC (Interactive Ratio Control) expander/gate circuitry for transparent noise suppression Switchable tube simulation for the extra warmth of classic tube circuitry Automatic or manual adjustment of attack and release times Switchable sidechain high-pass filter prevents pumping due to extreme low-frequency compression Stereo couple function with independent output level settings Switchable sidechain 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 1/4" 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 for noise-free audio and low power consumption Occupies just 1 RU of rack space Tech Specs 2 x 1/4" TS Returns (Unbalanced) Function Expander/Gate, Compressor, Peak Limiter, De-Esser, Dynamic Enhancer, and Tube Simulator Number of Channels 2 Inputs 2 x 3-Pin XLR Female (Balanced) 2 x 1/4" TRS (Balanced) Outputs 2 x 3-Pin XLR Male (Balanced) 2 x 1/4" TRS (Balanced) Sidechain 2 x 1/4" TS Sends (Unbalanced) Input Impedance Balanced at +4 dBu Operating Level: 50 kOhms Unbalanced at +4 dBu Operating Level: 50 kOhms Balanced at -10 dBV Operating Level: 50 kOhms Unbalanced at -10 dBV Operating Level: 100 kOhms Sidechain: 10 kOhms Output Impedance Balanced: 100 Ohms Unbalanced: 50 Ohms Sidechain: 50 Ohms Maximum Input Level Audio: +22 dBu Sidechain: +20 dBu CMRR Typically 60 dB at 1 kHz Compression Threshold -40 to +20 dB Compression Ratio 1:1 to Infinity:1 Attack Time Compressor (Manual): 0.3 ms per 20 dB to 300 ms per 20 dB Compressor (Auto): Typically 15 ms for 10 dB, 5 ms for 20 dB, 3 ms for 30 dB Gate: <1 ms per 50 dB (Program Dependent) Level 1 Limiter: "Zero" Level 2 Limiter: Typically <5 ms (Program Dependent) Release Time Compressor (Manual): 0.05 Sec per 20 dB to 5 Sec per 20 dB Compressor (Auto): Typically 125 dB/Sec (Program Dependent) Gate (Slow): 100 ms per 1 dB Gate (Fast): 100 ms per 100 dB Level 1 Limiter: "Zero" Level 2 Limiter: Typically 20 dB per Sec (Program Dependent) Gate Threshold Off to +10 dB Gate Ratio 1:1 to 1:8 Maximum Output Level Audio: +21 dBu (Balanced/Unbalanced) Sidechain: +21 dBu Make-up Gain Compressor: -20 to +20 dB Filter Settings Dynamic Enhancer: 6 dB/Octave High-Pass Filter at 2.5 kHz De-Esser: Program-Dependent Bandwidth at 8.6 kHz (Female) or 7.5 kHz (Male) Gain Dynamic Enhancer: Up to 28 dB of Boost at 7.5 kHz De-Esser: Up to 15 dB of Level Reduction Frequency Response 10 Hz to 70 kHz (+0 dB, -3 dB) Signal-to-Noise Ratio (SNR) 115 dB (Unweighted) Total Harmonic Distortion (THD) 0.02% Typical at +4 dBu Operating Level, 1 kHz, Unity Gain Crosstalk -90 dB at 1 kHz Power Requirement 100 to 240 VAC, 50/60 Hz, 15 W Dimensions (W x H x D) 19.0 x 1.7 x 5.9" / 48.3 x 4.4 x 14.9 cm Weight 3.7 lb / 1.7 kg Packaging Info Package Weight 4.725 lb Box Dimensions (LxWxH) 20.6 x 10.1 x 4.3"