10-Band Graphic EQ M108 12dB of serious cut or boost. Ten carefully chosen frequencies along with input and output level controls. 18 volt operation for twice the headroom of most EQ pedals.AboutReviewsF.A.Q.'sRelated ItemsManual 10-Band Graphic EQ Info No matter what your instrument, regain control of your tone with this incredible EQ. The MXR 10-Band Graphic EQ gives players huge amounts of tone shaping and level control in a bullet-proof enclosure. With ten carefully chosen frequencies and both input and output level controls, the 10-Band will let you tune your bass or guitar rig to any room in seconds; create earthshaking low-end; restore punch, level, and treble response to a crowded pedalboard; warm up an amplified acoustic; and much, much more. Power: Dunlop ECB004 18 volt AC Adapter