An amp-like boost/OD/light-fuzz circuit with optional hardclipping distortion. A silicone transistor based MASTER circuit provides 50's power-amp style overdrive which is highly reactive - it compresses + clips the harder you attack it. The PRE acts like a post-phase invertermaster volume, going from60's/70's era drive up to light fuzz. Kick in the SUSTAIN circuit for an extra gain stage in the PRE, taking you into 80's and 90's tones.