Purple Audio Mc77 -win-mac- Jun 2026

The MC77 features the classic attack and release knob layout of the 1176, but the time constants are meticulously tuned. It excels at "catching" transients. Whether you want to suppress the initial crack of a snare or accentuate it by using a slow attack, the MC77 responds with a musicality that feels instinctive.

The software includes extra features not found on the original hardware: TMT (Tolerance Modeling Technology): Purple Audio MC77 -WiN-MAC-

: Simplifies the process of using two units together for bus processing. The MC77 features the classic attack and release

Here’s a for the Purple Audio MC77 (hardware unit) — but since you added “-WiN-MAC-,” I’ll clarify first: The software includes extra features not found on

However, by the late 90s, original units were becoming expensive and maintenance-heavy. Enter Andrew Barta of Purple Audio. He didn't just clone the 1176; he analyzed its shortcomings and improved upon the circuit. The result was the Purple Audio MC77. It retained the explosive "bite" of the Rev D and E units but offered tighter component tolerances and improved noise performance.

The MC77 is a FET limiter. Unlike VCA compressors which are clean and transparent, or Opto compressors which are slow and tube-like, FET limiters are incredibly fast. They add distinct harmonic distortion (color) to the signal. The MC77 is renowned for being slightly "meaner" and more aggressive than a standard Urei 1176. It has a sizzle in the upper midrange and a solidity in the low end that cuts through dense mixes effortlessly.

Compatible with major formats on Windows and macOS (AAX, AU, VST2, VST3). Sound and Applications