Bass Big Muff Pi 2 – Iconic fuzz for electric bass

The Big Muff fuzz legend adapted for bassists

The Electro-Harmonix Bass Big Muff Pi 2 combines the heritage of the famous Big Muff with a revisited version of the 1970s Op-Amp fuzz circuit, specifically optimized for electric bass.

Developed in collaboration with Josh Scott of JHS Pedals, this pedal recreates the original circuit while adding modern features tailored to bassists who want a powerful fuzz without losing low-end depth.

The result: a unique, rich, and massive sound capable of shaking stages and studios alike.

A fuzz optimized to preserve low frequencies

The Bass Big Muff Pi 2 retains the iconic sonic signature of the Big Muff:

✔ Thick saturation
✔ Near-infinite sustain
✔ Characteristic midrange grit
✔ Flexible equalization

But it adds bass-specific controls for better tonal balance.

Advanced controls and features

BLEND (Wet/Dry Mix)

Allows you to blend the clean (dry) signal with the fuzz (wet) signal.

Ideal for:

• Maintaining playing definition

• Retaining fundamental bass

• Avoiding loss of clarity in the mix

BASS BOOST Switch

Activates a low-frequency boost to provide even more depth and impact.

Particularly effective:

• With the TONE knob set to higher frequencies

• For a massive sound on stage

Classic Big Muff controls

• VOL – Output volume

• TONE – Equalization (frequency control)

• SUSTAIN – Distortion intensity and sustain duration

Versatile footswitch – Latching and momentary mode

The Bass Big Muff Pi 2 is equipped with a latching/momentary footswitch:

✔ Standard press = normal operation (latching)
✔ Holding the footswitch = momentary burst of intense fuzz

A perfect system for adding dynamic explosions of saturation to your performances.

The circuit uses a mechanical true bypass relay to preserve signal transparency when the pedal is disengaged.

Main features

✔ Unique Big Muff circuit based on 2 dual op-amps
✔ Version optimized for low frequencies
✔ BLEND control to preserve the clean signal
✔ BASS BOOST for more impact
✔ True bypass
✔ Latching / momentary footswitch
✔ 9V battery included
✔ Optional power adapter

Technical specifications

• Circuit: Analog

• Audio: Mono

• Power: 9V battery included (optional 9.6 VDC – 200 mA adapter not included)

• Current draw: 20 mA

• Dimensions: 4.5 x 2.75 x 2.1 in