IGS Audio 576 Blue Stripe

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Quick Overview

True peak limiter with all transistor circuitry and superior performance on all types of material
IGS Audio 576 Blue Stripe


The IGS 576 Blue Stripe is a revised version of the classic FET compressor.

The FET-type solution was first used for its application in the legendary UREI 1176 compressor from the 70s. The most important feature inspired by revision A is the input transformer used and pure class A output stage. The compressor is equipped with a relay bypass, 2:1 Ratio and Slam Mode accessible on the front panel.

The 576 Blue Stripe’s major selling point is its ultra-fast attack time — 20 µS. The 576 BS Ratio buttons allow four different modes of operation: 2:1 Ratio (soft compression); 4:1 ratio (moderate compression); 8:1 ratio (severe compression); 12:1 ratio (mild limiting); 20:1 ratio (hard limiting); S – SLAM, All Buttons In trick mode.


  • Fet Compressor
  • Stereo Link: Yes (linkable in PSU)
  • Input Impedance: (balanced) 2.4k
  • Output Impedance: (balanced) 600 Ohm
  • Audio transformers: Yes, Carnhill on input and output
  • Operating level: +4 dBu
  • Max input level: +20 dBu
  • Max output level: +22 dBu
  • Noise level: -99 dBA
  • Max gain: 36 dB
  • Max gain reduction: -20 dB
  • Ratio: 2:1, 4:1, 8:1, 12:1, 20:1, Slam (All in)
  • Attack: 20us - 800us
  • Release: 50ms - 1.1s
  • Frequency response: 8 Hz to 20 kHz, +/- 0.1dB
  • THD+N: 0.014%
  • Power consumption: 2.5 W
  • Shipping weight: 1kg

Additional Information

Condition New
Package Contents No
Unit Weight N/A
Channels No
Chassis 500 Series
Module Slot Count 1 Slot
Rack Spaces No
Direct Input No
Digital I/O No
Input Connectors Analog XLR
Output Connectors Analog XLR
MIDI Connections N/A
Impedance N/A
Computer Connection N/A
EQ Type N/A
Tube Complement N/A
Power Consumption N/A

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