Electro-Harmonix has unveiled the Bass Big Muff Pi 2, a new low-end-focused evolution of one of the most recognizable fuzz circuits ever created. Built on the legacy of the classic Big Muff while drawing inspiration from the elusive Op-Amp variant of the 1970s, this latest release delivers a fresh voice tailored specifically for bass players.

The Big Muff has long held a place on pedalboards across genres, prized for its singing sustain and aggressive midrange character. The Bass Big Muff Pi 2 expands on that heritage with a circuit design built around dual op-amps, offering a distinct tonal profile that blends vintage grind with modern clarity. The result is a fuzz that cuts through dense mixes while preserving the depth and authority bassists rely on.
Designed to maintain low-end integrity, the pedal introduces two key features aimed squarely at bass performance: a BLEND control and a BASS BOOST switch. The BLEND knob allows players to mix their dry signal with the fuzz effect, keeping articulation and punch intact even under heavy saturation. Engaging the BASS BOOST switch reinforces the fundamental frequencies, delivering added weight — especially useful when dialing in brighter tones via the TONE control.
The familiar VOL, TONE, and SUSTAIN controls remain at the core of the layout, providing the wide tonal sweep and near-endless sustain synonymous with the Big Muff name. Whether set for subtle grit or full fuzz assault, the Bass Big Muff Pi 2 offers a versatile range of textures suited for rock, alternative, doom, punk, and experimental styles.

Performance flexibility extends to the footswitch, which features true bypass operation with both latching and momentary functionality. A standard click engages the effect in traditional on/off fashion, while pressing and holding the switch unleashes a temporary burst of fuzz — ideal for accents, transitions, and dynamic live moments. The pedal uses a mechanical relay true bypass system housed beneath a soft-touch footswitch for reliable operation.
Power options include an included 9V battery, with compatibility for an optional 9V adapter.
With the Bass Big Muff Pi 2, Electro-Harmonix refines a legendary fuzz platform into a bass-optimized powerhouse — delivering massive sustain, crushing grind, and uncompromised low-frequency impact in a compact, performance-ready design.





