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Q2 Audio

The history of the ADR Compex Limiter F760X RS goes back to the late ’60s in England when Audio & Design Recording made the single-knob F600 compressor module. It used a diode bridge gain changing circuit and had fixed attack and release times. Later on, the single-channel F760X-N compressor module used a FET gain cell, had a variable attack, release, and ratio controls, and also included a peak limiter and expander/gate.

The original circuitry was kept intact other than adding better voltage regulation in a few spots as well as increasing local DC power decoupling to get better separation. The F760X-RS and F765 are being built by Q2 Audio in Royal Oak, MI.

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The Q2 Audio F765 is the compression and limiting sections of the famous "Compex Limiter" built into a single 500 Series slot. The audio path contains the same blue Phillips type capacitors and BC series transistors as the original Compex.

MSRP: $3,495.00
$2,900.00

The Q2 Audio F760X-RS "Compex Limiter" is a faithful recreation of the original but updated for modern manufacturing methods.

MSRP: $1,360.00
$1,135.00

The Q2 Audio F765 is the compression and limiting sections of the famous "Compex Limiter" built into a single 500 Series slot.

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