The Supro Drive captures the unmistakable sound of our vintage tube amplifiers in an effects pedal. By recreating every aspect of the circuitry of a 1960s Supro tube amp, including an actual output transformer, the Supro Drive achieves the magnetic saturation that gives Supro amps their iconic deep, warm, and gritty rock n' roll tones. The most realistic-sounding overdrive pedal ever made, the Supro Drive features a toggle switch between the different windings of our custom transformer, offering high-headroom Bold sounds or high-gain Rich tones. The pedal also features an assignable Expression pedal control for adjusting gain with preset minimum and maximum settings. Runs on 9-18VDC.