Based on Wampler Pinnacle Distortion "Brown Sound" It has an extremely tweakable EQ – from scooped mids to tons of warm mids, all with the turn of 2 knobs. This pedal has 4 knobs — two separate tone controls that act as a sort of parametric EQ, gain and volume. It also has a four‘bright’ switch that adds a tone of variety and is very handy when playing a dark sounding amp, as well as another toggle switch that will give you high gain 'Brown Sound' tones.