Electro Harmonix J Mascis Ram’s Head Big Muff Pi Fuzz Pedal

£119.99

On the menu for January 2026 are the Electro Harmonix Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Electro Harmonix Guitar Pedals today.


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Description

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On the menu for January 2026 are the Electro Harmonix Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Electro Harmonix Guitar Pedals today.

Here's what Electro Harmonix say about the J Mascis Ram’s Head Big Muff Pi

The J Mascis Ram’s Head Big Muff Pi fuzz pedal pays homage to the sonic center of the alt-rock legend’s iconic tone of equal parts thickness and clarity in a special edition white and violet finish.

“That’s my sound. The Muff is always on,” J says. “All distorted sounds begin with the Muff. That’s what I grew up playing so it’s kind of amazing to have my own signature one.”

Based on the highly coveted 1973 Electro-Harmonix V2 Violet Ram’s Head Big Muff, J’s signature Big Muff produces the indulgent fuzz and exceptional sustain used as his sonic center for decades.

The fuzz is sonically more articulate than other Big Muffs with excellent string separation and dynamics, which make it one of the most versatile Big Muffs. The pedal’s response feels smooth and aggressive making your leads scream and chords thunder.

Feel the fuzz of a guitar giant: the J Mascis Ram’s Head Big Muff Pi fuzz pedal from Electro-Harmonix.

Specifications

  • Circuit: Analogue
  • Bypass: True Bypass
  • Audio: Mono
  • Power Supply: 9V battery included (optional 9.6VDC-200mA power adapter not included)
  • Dimensions (in): 4.5 x 2.75 x 2.1
  • Current Draw: 2mA

Additional information

Weight 0.5 kg

Brand

Electro Harmonix

Electro-Harmonix (EHX) is a legendary manufacturer of guitar pedals and audio electronics, renowned for their distinctive sound and pioneering designs. Established in 1968 by Mike Matthews, EHX has played a significant role in shaping the landscape of effects pedals. The company’s pedals are celebrated for their innovative circuits and unique tones, earning them a dedicated following among musicians across genres. From classics like the Big Muff Pi fuzz to modern favorites like the POG octave generator, Electro-Harmonix pedals are known for their versatility and sonic character.

EHX’s product lineup spans a wide range of effects categories, including distortion, modulation, delay, and reverb, among others. Their pedals often feature intuitive controls and rugged construction, making them suitable for both stage and studio use. In addition to their iconic standalone pedals, Electro-Harmonix has also produced notable units such as the Memory Man delay/echo and the Holy Grail reverb, which have become staples in many guitarist’s rigs. With a legacy of innovation and a commitment to quality, Electro-Harmonix continues to be a leading force in the world of guitar effects, inspiring musicians to explore new sonic possibilities.

Category

Guitar Pedals

Tags

Fuzz

A fuzz pedal is one of the earliest and most aggressive forms of distortion, turning your clean guitar signal into a thick, saturated wall of sound. It works by clipping the waveform almost flat, creating a compressed, gritty tone full of harmonic overtones. The result is raw, unruly, and unmistakable — from the sputtering breakup of vintage germanium circuits to the searing sustain of modern silicon designs. Fuzz pedals react strongly to your guitar’s volume and pickup choice, making them dynamic tools for expressive players.

Whether you’re chasing the classic tones of Hendrix and the Smashing Pumpkins or exploring heavy, experimental textures, fuzz remains a favourite for its personality and unpredictability. It can sound smooth and sustaining, or wild and velcro-like, depending on how it’s set up. A good fuzz pedal cuts through the mix while adding thickness and attitude, turning any riff or lead line into something bold and unmistakably alive.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

used

Available for Amazon Prime