IGS Audio 576 Blue Stripe Rev A, 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 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.

DEVICE TYPE
Fet Compressor: Yes
BASIC FEATURES
Stereo Link: Yes (linkable in PSU)
INPUT & OUTPUT
Input Impedance (balanced): 2.4k, Carnhill transformer
Output Impedance (balanced): 600 Ohm, Carnhill transformer
Audio transformers: Yes, Carnhill on input and output
LEVELS
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
Ratio: 2:1, 4:1, 8:1, 12:1, 20:1, Slam (All in)
Attack: 20us - 800us
Release: 50ms - 1.1s
BANDWIDTH
Frequency response: 8 Hz to 20 kHz, +/- 0.1dB
DISTORTION (@ 20 HZ - 20 KHZ)
THD+N: 0.014%
POWER
Power consumption: 2.5W
PACKING BOX
Shipping weight: 1kg

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

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