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Electro-Harmonix Op Amp Big Muff Pi Fuzz Pedal

Echo and Optics

(16018)

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US $96.20

ApproximatelyAU $147.84

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Condition:

Brand New

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Last one1 sold

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Free Flat Rate Freight.

Located in: Multiple Locations, United States

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Estimated between Wed, 27 Aug and Tue, 2 Sep to 94104

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30-day returns. Seller pays for return postage.

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eBay item number:286320996447

Last updated on 01 Aug, 2025 03:21:05 AESTView all revisionsView all revisions

Item specifics

Condition: Brand New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging ... Brand New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is available in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitionsopens in a new window or tab

Style: GUITAR_EFFECT_DEVICE

Color: Multicolored

UPC: 0683274012087

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.

Item description from the seller

About this seller

Joined Aug 2006

Usually responds within 24 hours

Echo and Optics, stereo, home theater, media equipment, projector, receiver, television, TV, CD player, speaker, subwoofer, amplifier, DVD player, Blu-Ray, Blu-Ray Player, home theater system, iPod ...

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Detailed seller ratings

Average for the last 12 months

Accurate description

5.0

Reasonable postage costs

5.0

Postage speed

5.0

Communication

5.0

Seller feedback (16,364)

d***c (129)- Feedback left by buyer.
Past 6 months
Verified purchase
Item arrived brand new and sealed installer packaging as expected. Not retail. This is NOT an ISP branded Eero. Great communication! Best price I have found. 100% would purchase from this seller again. Thanks!
eero Max 7 Tri-Band Mesh Wi-Fi 7 Router - 10 Gbps Ethernet - White (#285788374696)
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Past 6 months
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Received the item within six days & is new as stated & unopened. I was able to place a bid in between the actual price & received a good deal from the seller & saved money of what the going price for this item was initially. Thank you, seller! Definitely will use for future purchases. Highly recommended!
EERO SN11111 Outdoor 7 Mesh WiFi Router bundle With AC Adapter (#276819240456)
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Past 6 months
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Seller was absolutely perfect - arrived incredibly quickly, Eero Outdoor 7 was brand new in factory sealed box as described, install was easy (I had the correct network and physical infrastructure in place already), and the performance is perfect.
EERO SN11111 Outdoor 7 Mesh WiFi Router (#276819242430)

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Product ratings and reviews

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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
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Would recommend

Good value

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Most relevant reviews

See all 36 reviews

by stonylonsome205
24 Dec, 2022Top favourable 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 ... 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 enough. If you're not interested n that aspect of the pedal- just want a fuzz- this might not be the pedal for you. It doesn't' sound like a trad. fuzz- there's no cleaning up with your vol. knob on this one- it's balls to the wall or don't turn it on.
Verified purchase: YesCondition: Pre-ownedSold by: cjprymtime
by camine3
28 Sep, 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 ... 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 great pedal, don’t let one YouTube video fool you!
Verified purchase: YesCondition: NewSold by: musiciansfriend
by kadejackso-0
22 Aug, 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. 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
24 Dec, 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 ... 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 actually turned the pedal on and off. You can never have too much muff no matter which way you slice it!!! I instantly wrote 3 new songs in 24 hours just by fidgeting with this thing. Get it! $80 is a steal in this day and age of boutique pedals and this thing is awesome!
Verified purchase: YesCondition: NewSold by: quimpersoundrecordsguitars
by carlheinz
01 Feb, 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 bothTheres 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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Electro-Harmonix Op Amp Big Muff Pi Fuzz Pedal

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Item specifics

About this product

Product Identifiers

Product Key Features

Dimensions

Item description from the seller

Echo and Optics

100% positive Feedback•60K items sold

Detailed seller ratings

Seller feedback (16,364)

Product ratings and reviews

Most relevant reviews

Almost Smahsing Pumpkins- but not quiet.

Perfect Sound, just give yourself time to find it!

Great fuzz pedal

Not exact duplicate but still awesome!

More

More to explore:

Echo and Optics

100% positive Feedback•60K items sold

Detailed seller ratings

Seller feedback (16,364)

Picture 1 of 9

Electro-Harmonix Op Amp Big Muff Pi Fuzz Pedal

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Dimensions

Item description from the seller

Echo and Optics

100% positive Feedback•60K items sold

Detailed seller ratings

Seller feedback (16,364)

Product ratings and reviews

Most relevant reviews

Almost Smahsing Pumpkins- but not quiet.

Perfect Sound, just give yourself time to find it!

Great fuzz pedal

Not exact duplicate but still awesome!

More

More to explore:

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