The ELECTRO-HARMONIX / Big Muff Pi Original is a reissue of the Big Muff, famously used by Jimi Hendrix, Santana, and others. It retains all the great qualities of the original while significantly reducing noise. Its rich, heavy sound continues to captivate players even more than 40 years after its release, making it a representative guitar fuzz/distortion pedal.
The ELECTRO-HARMONIX Nano Big Muff PI is a compact version of the legendary Big Muff, a pedal that continues to captivate players worldwide. It inherits the powerful, loud, and smooth tone of the current Big Muff, and its wall-of-sound roar is still present in its compact size. The rich, sustained sound that only a Big Muff can deliver can easily be incorporated into your pedalboard.
This model is a reissue of the 1973 Ram's Head Big Muff, which is now traded at a very high price, by the original Electro-Harmonix in a compact nano-sized case. Based on the purple paint period called V2, it features excellent separation and a strong sustain. It has also been modified to suit modern times, such as true bypass and support for 9V external power.
New for December 2025! The Big Muff Pi 2 is a fuzz pedal that recreates the dual op-amp circuitry of the Big Muff, delivering wilder distortion and richer sustain than the original Big Muff. It also supports a momentary switch, allowing for highly expressive fuzz play.
ELECTRO-HARMONIX / Op-Amp Big Muff Pi is a reissue of Op-Amp Big Muff born in the late 1970s. This model is famous for being used by Billy Corgan of Smashing Pumpkins. An operational amplifier is used for the amplification element instead of the general big muff transistor, and the gain stage adopts 3 stages instead of the conventional 4 stages.
ELECTRO-HARMONIX / Green Russian Big Muffは、1990年代半ばにロシアで製造された通称Green Russian Big Muffを、Nanoシリーズのサイズで再現したディストーション/ファズ。トールフォント期とバブルフォント期をミックスしたアグレッシブなサウンドを実現しています。