Electro-Harmonix Nano Bass Big Muff PiMaker: Electro Harmonix Model: Bass Big Muff Nano Condition: New Description: The most compact Bass Big Muff ever is packed with the ginormous Bass Big Muff sound. Controls for Volume, Tone and Sustain let you sculpt your distortion and drive, while the Dry switch mixes your dry bass with the Nano Bass Big Muffs distortion. Tailor your drive distortion sound with Sustain, Tone and Volume knobs Features a Dry switch that mixes your dry bass, at unity