Dunlop CSP039 MXR Custom Shop "Duke Of Tone": Footswitch toggles effect on/off (white LED indicates on) OD/BOOST/DIST switch sets clipping mode VOLUME knob adjusts overall output level DRIVE knob adjusts overdrive intensity TONE knob adjusts overall EQ The MXR® Duke of Tone™ Overdrive is powered by the Dunlop ECB003 9-volt adapter or an MXR® Brick™ Series power supply. This pedal cannot be powered by a battery.
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