The Electro-Harmonix Bass Big Muff Pi is the bass-dedicated version of the legendary Big Muff fuzz circuit. Specially optimized to preserve low-end impact and body, it delivers a powerful, fat, and cutting distortion while offering unique blending options to retain the instrument's natural punch.

Key Technical Specifications

• Circuitry: Frequency response tailored for bass (based on the classic Sovtek/Russian Big Muff circuit).
• Controls:
• • Volume: Sets overall output level.
  • Tone: Controls tonal character and brightness.
  • Sustain: Adjusts saturation intensity and note sustain.
• 3-Position Switch:
• • Norm: Classic Big Muff response.
  • Bass Boost: Boosts low frequencies for an even more massive presence.
  • Dry: Blends the dry (clean) bass signal with the distorted signal to preserve attack and articulation.
• Outputs: Effect Out and dedicated Dry Out for parallel routing or bi-amping.
• Bypass: True Bypass to preserve dry signal transparency.
• Power Supply: 9V battery or 9V DC power supply (center negative).

Key Features

• Low-End and Dynamic Retention: The Dry mode prevents any loss of body or attack in the lower end of the sound spectrum.
• Popular with Guitarists: Also formidable on electric guitar for achieving a heavy fuzz tone rich in low-mids.
• Routing Flexibility: Dual output allows splitting the clean and distorted signals on stage or in the studio.