Behringer MDX 2100 COMPOSER 2-Channel Compressor and Gate (2025)

Behringer COMPOSER 2-Channel Compressor and Gate

The Behringer COMPOSER is an extremely efficient and universal dynamics processor, which combines the most commonly used dynamic functions within a compact stereo unit: every channel has it's own independent Compressor/Limiter, an Expander/Gate, and a Peak Limiter. The Precision and flexibility of the functions are the main outstanding features of this high end unit. Despite the extremely complex internal circuitry, the unit has a control surface which is clearly laid out and easy to understand. The internal design of the unit, together with its external sidechain path, gives the user unsurpassed creative flexibility when processing sound.

Features:

• 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

Specifications:

• Audio Inputs
  • Type: XLR and 1/4" TRS connectors, servo-balanced
  • Impedance:
    • +4 dBu: 50 kΩ balanced, 50 kΩ unbalalanced @ 1 kHz
    • -10 dBV: 50 kΩ balanced, 100 kΩ unbalanced @ 1 kHz
  • Operating Level: +4 dBu / -10 dBV, switchable
  • Max. input level: +22 dBu, balanced and unbalanced
  • CMRR: Typically 60 dB @ 1 kHz
• Audio Outputs
  • Type: XLR and 1/4" TRS connectors, servo-balanced
  • Impedance: 100 Ω balanced, 50 Ω unbalanced @ 1 kHz
  • Max. output level: +21 dBu, balanced and unbalanced
• Sidechain Inputs
  • Type: 1/4" TS connector, unbalanced
  • Impedance: 10 kΩ
  • Max. input level: +20 dBu
• Sidechain Outputs
  • Type: 1/4" TS connector, unbalanced
  • Impedance: 50 Ω
  • Max. output level: +21 dBu
• System Specifications
  • Frequency range: 10 Hz to 70 kHz, +0/-3 dB
  • S/N ratio: 115 dB, unweighted
  • THD: 0.02% typ. @ +4 dBu, 1 kHz, unity gain
  • Crosstalk: -90 dB @ 1 kHz
• Expander / Gate Section
  • Type: IRC (Interactive Ratio Control) expander
  • Threshold: OFF to +10 dB, variable
  • Ratio: 1:1 to 1:8, variable
  • Attack: < 1 msec / 50 dB, program-dependent
  • Release:
    • SLOW: 100 msec/1 dB
    • FAST: 100 msec/100 dB, variable
• Compressor Section
  • Type: IKA (Interactive Knee Adaptation) compressor
  • Threshold: -40 to +20 dB, variable
  • Ratio: 1:1 to ∞:1, variable
  • Attack / release: Manual or automatic, variable
  • Manual attack time: 0.3 msec/20 dB to 300 msec/20 dB, variable
  • Manual release time: 0.05 sec/20 dB to 5 sec/20 dB, variable
  • Auto characteristic: Wave adaptive compressor
  • Auto attack time: Typically 15 msec for 10 dB, 5 msec for 20 dB, 3 msec for 30 dB
  • Auto release time: Typically 125 dB/sec, program-dependent
  • Output: -20 to +20 dB, variable
• Peak Limiter Section
  • Type: IGC (Interactive Gain Control) peak limiter
  • Level: 0 dB to OFF (+21 dBu), variable
  • Level 1 limiter type: Clipper
  • Attack: “Zero”
  • Release: “Zero”
  • Level 2 limiter type: Program limiter
  • Attack: Typically <5 msec, program-dependent
  • Release: Typically 20 dB/sec, program-dependent
• Dynamic Enhancer Section
  • Type: IDE (Interactive Dynamic Enhancer)
  • Filter frequency: 2.5 kHz (lower cut-off frequency)
  • Characteristic: High-pass filter (6 dB/oct.)
  • Boost: Max. 28 dB @ 7.5 kHz
• De-Esser Section
  • Type: VAD (Voice-Adaptive De-Esser)
  • Filter Frequencies: 8.6 kHz (Female), 7.5 kHz (Male)
  • Filter bandwidth: Program-dependent
  • Level reduction: Max. 15 dB
• Power Supply, Voltage, Current Consumption
  • Switch mode power supply: Autorange, 100-240 V~ 50/60 Hz
  • Power consumption: 15 W
  • Mains connector: Standard IEC receptacle
• Dimensions / Weight
  • Dimensions (H x W x D): 44 x 483 x 149 mm (1.7 x 19.0 x 5.9")
  • Weight: 1.7 kg (3.7 lbs.)