Keeley Oxblood Overdrive - UsedThe Oxblood is a versatile overdrive boost featuring controls for volume, tone, and drive, along with two mini toggle switches to adjust the pedal's low end response and clipping stages. It is claimed loosely based around the tone stack of the Klon Centaur and its many interpretations, but the overdrive itself is very much original. The Oxblood can be run as a low or heavy gain stage almost being able to be treated as a fuzz at extreme settings.