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Dynamic Harmonics Control

The Compex is a Stereo Analog Dynamic Control unit designed to optimize the performance of poor-quality recordings for playback at high volume levels. It features an optical audio compressor, and very high-quality harmonics expander, and a true remote bypass feature.


  • 1U 19" rack Analog Dynamic processor

  • High-quality opto-compressor with level-dependent filter

  • Compressor reduction bar graph level meter

  • High-quality harmonics expander

  • Harmonics bar graph level meters

  • Output bar graph level meters

  • True remote bypass feature

  • XLR balanced inputs and outputs with Line Drivers


Designed as a tool to optimize recordings for playback at high volume levels

  • Fixed Installations

  • Disco clubs

  • Use with any KV2 Audio system

System Acoustic Performance

-3dB Response: 20Hz to 100kHz

Dynamic Range: >130dB

Channel Crosstalk: 90dB

Signal to Noise Ratio: 110dB

Total Harmonic Distortion: 0.001%

Signal Input

Input Channels: 2

Input Impedance: 20kΩ (balanced)

Line input: XLR

Signal Output

Signal Output Channels: 2

Output Impedance: 50Ω

Through Signal Output: XLR


Input Level Control: -10 / +10dB

System setup: Bypass (remote controlled)

HarmonicsDrive: 0 to 10

Equalization: Level dependent

Indicators: 2x2 Level LED bar graphs


Threshold: ∞ to -20dB

Ratio: 1:3

Indicators: 1x LED bar graphs


Range: 0 to 10

Power Requirements

Power Connector: IEC 320

Operating Voltage: 115V / 230V

Operating Voltage Range: 90 to 130V@60Hz | 180 to 260V@50Hz

Physical Dimensions

Height: 44 mm (1.7")

Width: 482.6 mm (19.0")

Depth: 198 mm (7.8")

Weight: 2.7 kg (5.96lbs)

Product code

  • KVV 987 289 - COMPEX 230V

  • KVV 987 288 - COMPEX 115V

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