The Electro-Harmonix Op-Amp Big Muff Pi is a faithful reissue of the legendary late-70s circuit made famous by Billy Corgan on The Smashing Pumpkins' Siamese Dream album. Built around operational amplifiers (op-amps) rather than traditional transistors, it delivers a massive, crushing, ultra-saturated fuzz with unmatched presence in the mix.
Key Technical Specifications
- Circuitry: Op-amp-based design replacing traditional transistors.
- Controls:
- Volume: Sets overall output level.
- Sustain: Adjusts saturation amount and sustain.
- Tone: EQ control ranging from a heavy, scooped sound to a cutting attack.
- Tone Bypass Switch: Disengages the tone circuit for an even rawer, more open, and punchy sound.
- Bypass: True Bypass to preserve dry signal integrity.
- Enclosure: Compact and durable Nano metal chassis.
- Power Supply: 9V battery (included) or 9V DC power supply (center negative).
Key Features
- The '90s Wall of Sound: Signature alternative rock tone, perfect for massive riffs and high-impact saturated chords.
- Tone Bypass Switch: Provides an instant volume and clarity boost by bypassing the tone filter.
- Compact Footprint: Small form factor for easy integration into any pedalboard setup.
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Condition | Brand New (New) Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more |
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