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Electro Harmonix Op Amp Big Muff Pi

Marsoni M251S
Sale price$109.50
Pay 4 payments of $27.38 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Electro Harmonix Op Amp Big Muff PiA faithful recreation of the famous Op Amp Big Muff Pi. The pedal relies on op amps rather than transistors and three gain stages rather than four, to create its signature sound. Its a sound thats 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. Made famous by The Smashing Pumpkins. Video: https:
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  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 2269 reviews
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Patti J Fredley
Los Angeles, US
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
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Verified Purchase
Lexi
Belleville, US
★★★★★ 5
Good, Comfortable Fit
Size: Medium, Color: (100) White / White / Black, Number of Items: 6, Size: Medium, Color: (100) White / White / Black, Number of Items: 6
I wear a women’s size 9.5 and I got a size Medium. They fit perfect, they aren’t super heavy, but have cushion where needed. Perfect for my steel toe boots
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Son loves them!
Size: Large, Color: Black (6-pairs), Number of Items: 6
My son loves these socks! Comfy, good quality.
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Reviewed in the United States on May 20, 2026
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Verified Purchase
Tori M
Charlottesville, US
★★★★★ 5
Good fabric
Size: Medium, Color: White, Number of Items: 6
Nice socks. Would buy again.
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Reviewed in the United States on March 23, 2026
S
Verified Purchase
Sarge Howell
Birmingham, US
★★★★★ 4
Quality and durable socks
Size: Large, Color: White (6-pairs), Number of Items: 6
Great quality socks. This pack was a lot taller on the cuff and bigger than previous batches I have had. Not sure what the change was, but giving it 4 instead of 5 because I preferred the smaller shorter ones they previously made. But these are great quality socks, and last a long time.
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Reviewed in the United States on February 8, 2026

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