A legend in American recording history, the MM-310 defined the Quad Eight sound — warm, wide, and effortlessly musical. From motion picture stages to hit records, its discrete, transformer-balanced circuitry remains sought after for its unmistakable presence and tone.

In partnership with Quad Eight Electronics, we’ve recreated this coveted piece of hardware for the modern era. Through meticulous component-level modeling, every nuance of its analog warmth, harmonic depth, and tonal smoothness has been captured — resulting in a powerful tool that delivers the authentic Quad Eight sound with the flexibility demanded by modern engineers.

Three fixed EQ bands deliver musical control across the spectrum. Proportional-Q curves keep every adjustment smooth and natural, while the shelf toggle transforms the high band from a broad presence lift to a focused peak, offering true analog versatility.