So you know those little ics that make up the sounds of things like the rat or the dod 250? Well this is all the tiny things inside that expanded and dirtied up to make a beefy grainy grind. A pair of discrete op amps make the heart of the circuit. The first one taking care of the tone shaping, booming lows and clean highs. With a knife sharp notch at 666hz cleaning up the mud. The second discrete op amp is overdriven past it’s limit to bring back the hell fire. This is followed by a controllable saturation section so you can go full op amp death to hard clipping. And a one knob tone section to dial in the flavor.