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Enhanced Compressor Limiter

Hand made in Australia

Click on image to see larger version (70K)

More ARX Signal Processing:

Audibox Series

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DeBalance 8

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DI-Plus 2 RC



  • Enhance switch to restore spectral balance of compressed signal
  • Switchable Mode - Dual Channel or Stereo linked
  • Above or Below Threshold LEDs
  • Balanced XLR and Jack Inputs and Outputs
  • Intuitive, user friendly layout
  • Flawless performance

The ARX COMPO™ is a unique compressor/limiter designed for use in any professional audio dynamics control application, packaged in a compact 1 RU chassis.
The COMPO operates as two independent compressor/limiters, with 'industry standard' variable Threshold, Ratio and Output gain controls. A Stereo Link switch on the front panel lets both channels track as a stereo pair in a Master/Slave configuration.

Enhance Switch
The COMPO features an 'Enhance' switch, which provides frequency restoration to preserve the spectral balance of the audio signal, compensating for the sagging Low and High frequency response of compressed program material.
The best way to think of it is as a 'smart' loudness control.

Wide Scale metering
There is comprehensive LED indication of all operating functions and status. Above or Below Threshold LEDs on each channel give you instant visual confirmation of compressor activity, as well as easy to read LED Gain Reduction meters.

Balanced Inputs and Outputs
On the rear panel, each channel has true differential Balanced inputs and outputs, on both XLR and TRS jack connectors. Other features include an Active/Bypass switch for each channel, and passive RFI filters on the inputs.

Universal AC Power
AC power range is a universal 100 to 120V or 220 to 240V AC, and is connected to the unit via a removable power lead and standard 3 pin IEC connector, with built-in fuse and voltage change switch.

ARX Quality
With its smooth compression, intuitive user friendly layout, high density precision circuitry, and extensive user-variable operating parameters, the ARX COMPO is the ideal installation 'set and forget' compressor, and is also equally at home in Studio, Broadcast and Sound Reinforcement environments.

Every day, ARX Audio interface products solve audio problems for thousands of people around the world. We know we’re obsessive about audio quality, but we’re betting that you are, too.

You'll never compromise on Quality when you choose ARX

T E C H N I C A L || S P E C I F I C A T I O N S

COMPO rear view Click on image to see larger version (105K)

Input Impedance Balanced 20 Kohms, Unbalanced 10 Kohms
Input Headroom + 22 dB
CMRR >60 dB, 20 Hz-20 KHz
Output Impedance Balanced 300 ohms, Unbalanced 150 ohms
Output Level (Max) + 22 dB
Frequency Response 20Hz to 20KHz ±0.4dB
Signal to Noise ratio -85 dB Unweighted, -99 dB 'A' weighted
Distortion .02% THD @ 0dB,1KHz
Dynamic Range 107 dB

Enhance Section
Low Enhance
50 Hz, High Enhance 10 KHz
Power Requirements 100/120 V AC, 220/240 V AC
Weight 5 lbs/2.2 Kg
Dimensions 19"W x 1¾"H x 6"D, 482 x 44 x 155mm
Input/OutputConnector type XLR, Balanced Jack

Front Panel Controls

  • Channel A Active/Bypassed IN/OUT switch
  • Threshold, Ratio and Output Gain controls
  • Numbered marker panel for labelling compressor assigns
  • 5 segment LED Gain Reduction display
  • Above/Below Threshold status LEDs
  • Enhance switch and status LED
  • Stereo link switch and status LED
  • Channel B controls identical to Channel A

Rear Panel Connectors

  • Balanced XLR Input and Output connectors.
  • Balanced TRS jack Input and Output connectors.
  • AC input connector, with voltage switch and fuse.

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