City Music Annex
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eBay Refurbished

Used Electro-Harmonix EHX Op-Amp Big Muff Pi Distortion/Sustainer Pedal OpAmp

US $80.99
or 4 interest-free payments of $20.25 available with
Condition:
Certified - Refurbished
“Mint, Two Year Warranty through eBay/Allstate!”
2 available175 sold
This one's trending. 175 have already sold.
Breathe easy. Returns accepted.
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Located in: Leominster, Massachusetts, United States
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Estimated between Sat, May 31 and Thu, Jun 5 to 94104
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Two-year warranty included
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eBay Refurbished

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Professionally inspected, cleaned and refurbished by the manufacturer or a manufacturer-approved vendor.
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2-year warranty
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eBay item number:255680234477
Last updated on Apr 24, 2025 12:00:18 PDTView all revisionsView all revisions

Item specifics

Condition
Certified - Refurbished
The item is in pristine, like-new condition. It has been professionally inspected, cleaned, and refurbished by the manufacturer or a manufacturer-approved vendor to meet manufacturer specifications. The item will be in new packaging with original or new accessories. See the seller's listing for full details. See all condition definitionsopens in a new window or tab
Seller Notes
“Mint, Two Year Warranty through eBay/Allstate!”
Non-Domestic Product
No
Modified Item
No
Country/Region of Manufacture
United States
Custom Bundle
No
Analog/Digital
Analog
UPC
0683274012087
Brand
Electro-Harmonix
Type
Distortion
Model
OP AMP BIG MUFF
MPN
612338073632
To Fit
Electric Guitar

About this product

Product Identifiers

Brand
Electro-Harmonix
MPN
612338073632
UPC
0683274012087
Model
OP AMP BIG MUFF
eBay Product ID (ePID)
14011277103

Product Key Features

To Fit
Electric Guitar
Type
Distortion

Dimensions

Weight
0.68lbs.
WARNING: WARNING: This product contains a chemical known to the State of California to cause cancer. For more information go to https://www.p65warnings.ca.gov/

Item description from the seller

About this seller

City Music Annex

100% positive feedback•125K items sold

Joined Nov 2008
Usually responds within 24 hours
Musical instruments and accessories at low prices. Most listings include free items!
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Popular categories from this store

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AccessoriesBrandEffect PedalsAmplifiersCablesGuitarsHarmonicasPercussionMicrophones

Seller feedback (50,525)

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  • 1***a (7)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Good condition happy with the quality and the value of the product and it looks great no scratches or marks of any kind
  • u***o (132)- Feedback left by buyer.
    Past year
    Verified purchase
    I thought it was refurbished, but it looked brand spankin’ new! INSTANT 90’s alternative sounds. It’s like having a Siamese Dream button! Seller was FAST … to Alaska!
  • t***t (1132)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Super Fast shipping, item in great condition. ~ Thanks
See all feedback

Product ratings and reviews

Learn more
4.9
50 product ratings
  • 45 users rated this 5 out of 5 stars
  • 4 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Enjoyable

Most relevant reviews

See all 36 reviews
  • by stonylonsome205
    Dec 23, 2022Top favorable review

    Almost Smahsing Pumpkins- but not quiet.

    I have a confession to make- you shouldn't be listening to me when it comes to this effect. I have very limited experience with fuzz pedals in general- just never cared for them that much. That said- this one isn't so "fuzzy"- it's more like an overdrive and a fuzz in one. Most ppl, I included, buy it because we want to sound like The Smashing Pumpkins. So- does it sound like them- well, mostly. It's not really the same pedal they used- they used the older version that's no longer made- this is the new, rereleased version. It has a different component in it because they can't get the same components any longer- I'm not sure which component it is that's different, but I assume it's the op-amp itself. That said- you can get like 99% of their sound using this pedal- which is plenty close ...

    Verified purchase: YesCondition: Pre-OwnedSold by: cjprymtime

  • by camine3
    Sep 27, 2021

    Perfect Sound, just give yourself time to find it!

    Great sounding, great looking pedal that’s surprisingly versatile. Of course I got it because I love the Siamese dream tone, and that’s what I was mostly doing with it for the first few days, but it nails so much more than that. Anything 90s sounds great- if you are familiar with Stars by Hum, it nails it and the rest of their songs. It’s a tad bit quiet if that makes sense, so if you plan on switching this pedal on and off, just play around with the volume knob before hand so your cleans aren’t louder than your dirty sound. It compresses a lot (in a good way) so I found that by just rolling back my guitar volume a little bit, you can make sure that when you kick on the pedal it roars- there’s not much difference in loudness if your guitar’s volume knob is at 4 or if it is at 10. Overall ...

    Verified purchase: YesCondition: NewSold by: musiciansfriend

  • by kadejackso-0
    Aug 22, 2020

    Great fuzz pedal

    This pedal has that particular tone that you get in a lot of 90’s alternative rock/grunge. Billy Corgan used this “Mellon Collie and the Infinite sadness” album. Op-Amp gives you heavier tones with a really nice midrange boost that works great for doodling scales. Tune your guitar down a bit and dial in the tone right, it also becomes a chugger for all us metal guys. Or leave the axe in standard and find a Hendrix-esque tone. No matter, this pedal can do them all.

    Verified purchase: YesCondition: Pre-OwnedSold by: citymusicsteve

  • by christiannoir
    Dec 23, 2017

    Not exact duplicate but still awesome!

    This isn't identical to the Smashing Pumpkins V4 Muff (I own the V4 and V5 amongst several other muffs and clones)... However, it is very similar. I can't say it's better or worse... it just has a slightly different flavor. For example, playing Cherub Rock, the real V4 shines. However, if you are writing new riffs, it doesn't matter. Each one sounds a bit better for different things and are equally inspiring. I say that if you already have the V4, you need to buy this pedal. The same goes for the other way around. Of you have this new one, you need a V4. The V4 and V5 are so similar, the differences could boil down to component drift... with that said, this clone is actually fashioned after the V5, because it can also remove the tone knob from the circuit via switch. The switch on the V4 ...

    Verified purchase: YesCondition: NewSold by: quimpersoundrecordsguitars

  • by carlheinz
    Jan 31, 2018

    More

    Theres nothing subtle or going on in this pedal. Pretty much square waves your entire guitar signal in a good way but clipping starts right away at the softest of pick attacks.This pedal is the Smashing Pumpkins flavor of muff fuzz. It's not very dynamic and sort of hits like a brick wall. One of those ON or OFF pedals. You go all the way or you don't go with this. IF you want something with a really wide range and more complexity and sensitivity to your touch I would look at the Fuzz War by Death by Audio but it is double the price and it still won't do what the op amp muff does which is very immediate but you are sort of hostage by it. I use both

    Verified purchase: YesCondition: NewSold by: musicdungeon

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