The Keeley Super Phat Mod Overdrive takes the original circuit up a notch, with vastly improved dynamics that have kept players captivated for over a decade. The Super Phat Mod OD promises to emulate the warm, tube-driven magic of vintage amps, providing players with natural-feeling break-up, rich harmonic content, and dynamic, transparent overdrive. This used phat mod has no cosmetic wear to speak of and works perfectly as it should. Original box not included.