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Electro Harmonix Op Amp Big Muff Pi FX Pedal [Used]

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*This is a Used Pedal in our Grade 4 - Excellent ConditionThe Op Amp Big Muff PI is a fuzz/distortion/sustainer FX pedal that is a...

*This is a Used Pedal in our Grade 4 - Excellent Condition

The Op Amp Big Muff PI is a fuzz/distortion/sustainer FX pedal that is a faithful re-creation of the original late-70s Op-Amp Big Muff Pi, that was popularised by the awesome Billy Corgan who first used it on the Smashing Pumpkins’ epic 1993 album Siamese Dream.

This is a 'used' pedal, in our Grade 4 Excellent condition, with only very minor signs of usage. It was brand new in 2023 and comes complete with the original box, and manual.

The Details

USED Pedal
Grade 4 - Excellent
Effect: Fuzz/Distortion/Sustainer
Original box & manual
Popularised by Billy Corgan of the Smashing Pumpkins'
All analog circuit
A faithful reissue of the original classic circa 1978
Iconic sound and vibe that’s coveted by guitarists
Controls for Tone, Sustain and Volume, plus a Tone Bypass switch
True bypass switching for maximum signal integrity in bypass mode
Rugged, compact, die-cast package… pedalboard friendly
Current Draw: 5mA
Power Supply: 9V battery or (optional 9.6VDC-200mA power adapter not included)

Used Grading

All used items have been fully checked here at Pedal Jungle and are in a fully working order. The grading represents the cosmetic condition of the item, not the usability.

5– The item is in “like new” mint condition with no discernible cosmetic wear, and no signs of velcro. The original box and any accessories will also be present.

4– The item is in excellent condition but may show some very small signs of use. This could include small scuff, scratch or dent, or a light tarnishing to the enclosure, or small signs of velcro. This may or may not include the original box and accessories.

3– The item is in good condition but will show clear signs of use. This can include multiple scratches, scuffs, dents or velcro marks. This may or may not include the original box and accessories.

2– The item has lots of wear and tear including scratches, dents, chips, tarnishing, or velcro marks etc. This may or may not include the original box and accessories.

1– The item has been heavily used with lots of wear and tear. This can include deep scratches, large chips, heavy tarnishing, strong discolouration or velcro marks. This may or may not include the original box and accessories.

What Do Electro-Harmonix Say?

With original late-70s Op-Amp Big Muffs selling for exorbitant prices, Mike Matthews decided to take the power to the people and reissue the classic pedal at a price that players could afford! The circuitry of the new EHX Op-Amp Big Muff Pi —sometimes also referred to as the IC or V4 Big Muff— has been faithfully re-created while several practical enhancements have been added including a compact, die-cast chassis and true bypass switching.

“The Op-Amp Big Muff was popularized by the brilliant Billy Corgan who first used it on the Smashing Pumpkins’ epic 1993 album Siamese Dream. After he was videotaped playing and talking about the reissue, Billy stated: ‘The magic’s still in the box, I can still get what I’m looking for!’” – Mike Matthews

The pedal relies on op-amps rather than transistors and three gain stages rather than four, to create its signature sound. It’s a sound that’s been described by noted Big Muff collector and historian, Kit Rae, as: “a huge, crushing Big Muff sound with more crunch… great for grungy, wall-of-sound distortion, heavy rhythm playing and heavy leads.”

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