576 Blue Stripe

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

What it is

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.

“true peak limiter with all transistor circuitry and superior performance on all types of material"

What it does

The 576 BS’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.

SLAM Mode can definitely give a male or female rock vocal track an in-your-face sound that you can’t get anywhere else.
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  4. Specification
  1. Device type
    Fet Compressor Yes
    Basic features
    Stereo Link Yes, by jumper in the PSU.
    Input & Output
    Input Impedance (balanced) 2.4k, IGS Custom transformer
    Output Impedance (balanced) 600 Ohm, IGS custom transformer
    Audio transformers Yes, IGS custom transformers
    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
    Time constants
    Attack: 20us - 800us
    Ratio 2:1, 4:1, 8:1, 12:1, 20:1, Slam (All in)
    Release: 50ms - 1.1s
    Frequency response 8 Hz to 20 kHz, +/- 0.1dB
    Distortion (@ 20 Hz - 20 kHz)
    THD+N 0.014%
    Power consumption 2.5W
    Packing box
    Shipping weight 1kg
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