The Metal Muff from Electro-Harmonics is a metal distortion pedal with top boost. The Metal Muff utilizes three EQ bands, including a mid-range control designed for contouring and creating beautifully sculpted mids. The unit offers commanding bass and defined high-end coupled with a wide spectrum of user-controlled distortion. The Metal Muff is housed in a tough and compact die-cast chassis and comes with a 9V battery. An optional 96 VDC-200BI power supply is available.