Electro-Harmonix Nano Big Muff Pi: The Iconic Fuzz in the Smallest Box

The Electro-Harmonix Nano Big Muff Pi is a fuzz, distortion, and sustainer that squeezes the definitive Big Muff voice into EHX's smallest enclosure. It keeps the classic Volume, Tone, and Sustain controls and the same enormous, creamy sustain, but in a footprint built for the tightest pedalboards. For players who refuse to choose between real Muff tone and precious board space, this is the answer. It is the legend, miniaturized.

Full Big Muff Tone, Minimal Footprint

The Nano Big Muff delivers the same thick fuzz walls and singing sustain as the full-size Muff, with no change to the voice. Its three controls behave identically, so soaring leads and dense rhythm are dialed in exactly as on the large box. The point of the Nano format is space, not compromise. You get an authentic Big Muff that happens to be tiny.

Sustain That Sings

The Sustain control sets how much fuzz gain and compression the circuit applies, reaching the violin-like sustain that made the Big Muff famous. Single notes bloom and hold, and chords turn into an immersive wall of harmonics. Whether the music is classic rock, alternative, or doom, the Nano covers the same tonal ground as its larger siblings. Its small size never limits the size of the sound.

Built for Crowded Pedalboards

The Nano chassis is EHX's most compact enclosure, letting you fit a genuine Big Muff where a larger pedal simply would not go. That frees room for more drives, modulation, and time-based effects on the same board. The die-cast construction stays tough enough for touring despite the small size. It is designed for players optimizing every inch of their rig.

True Bypass and Simple Power

The Nano Big Muff Pi uses true-bypass switching so your clean tone passes through untouched when the effect is off. It runs on a 9V battery or an optional 9-volt DC power supply for easy pedalboard integration. The three-knob layout keeps operation immediate, with no menus or modes. Plug in, turn up, and the classic Muff is right there.

**This B-Stock product has either been returned from a prior customer order or was used as a demo and repackaged. The product box may show signs of wear, and has had the manufacturer seal broken, but the product should remain in working condition. The item may show some signs of use, but it should not affect performance. All B-Stock items include the original manufacturer warranty, as we are an authorized reseller for this brand. This product is also covered under our return policy.