This is a brand new MXR 5150 EVH Overdrive guitar pedal. MXR collaborated with Eddie himself to design this pedal and the result is a highly versatile pedal with hand-adjusted multi-stage MOSFETS and plenty of controls to deliver a full range of the powerfully saturated and hyper-driven tones he is known for. The gain knob will conjure up everything from his early classic tones to the high-gain, super articulate sound he uses today. The 3-band passive tone stack works beautifully allowing you to set the EQ to taste. The boost switch works wonderfully to kick the pedal into even higher gain territory with nice compression and the gate control powered by the smart gate circuit tames unwanted noise.