The Electro-Harmonix Nano Bass Big Muff Pi, though a mouthful to say, brings the huge sound of the Big Muff Pi to a smaller size, calibrated just for your bass. You can tailor your bass' sound using the Nano Bass Big Muff Pi's Volume, Sustain, and Tone knobs, and use the Dry switch that will give you even more tonal options by mixing your unity-level dry bass signal in with the distortion from your pedal. Get the classic Big Muff fuzz, whether you simply plan on adding minimal grit to your tone or creating a full-on onslaught of bass fuzz, using the EHX Nano Bass Big Muff Pi.