MXR® SUGAR™ DRIVEBased on a rare and elusive circuit, the MXR Sugar Drive provides a diverse range of clear and transparent overdrive tones, from sauced up boosting to blown tube distortion. The MXR Sugar Drive provides a diverse range of clear and transparent overdrive tones, from sauced up boosting to blown tube distortion. Its based on a rare overdrive pedal that has acquired a mythical reputation among fanatical tone seekers thanks to its unique circuit design.