T-Rex Engineering Mean Machine DistortionThe T Rex Mean Machine effects pedal is a double distortion pedal that takes the spirit of early amplifier hot rodding and then multiplies it by as much as you want. You've got two channels, each with its own Level, Drive and Tone controls. Like a screaming vintage hot rod that's pared down to the bare essentials. There's no easing up from clean to crunch to distort. Hit the ON switch even with drive at zero, and you'll burn rubber. Turn up the gain