The MD-2 Mega Distortion from BOSS is a pedal that delivers the bottom-heavy distortion sounds heard in today's new-school metal and hard rock. The dual-stage distortion circuit with an added gain boost, plus the Bottom and Tone controls can be used to dial-in heavy distortion with sustain and massive low end. Produces heavy low-end distortion for modern metal and hard rock Gain Boost circuit creates huge distortion and sustain regardless of level Bottom control for bottom-heavy distortion matched to 6- or 7-string guitars Tone control adjusts balance between high and low frequencies Specs Pedal Type:Distortion Inputs:1 x Instrument Outputs:1 x 1/4" Power Source:9V DC power supply (sold separately) Batteries:1 x 9V Height:2.4" Width:2.9" Depth:5.1" Weight:1 lbs.