Electro-Harmonix J Mascis Ram's Head Big Muff review

The Dinosaur Jr. main man gets his own signature Muff and it's one for connoisseurs and collectors alike

Electro-Harmonix J. Mascis Ram’s Head Big Muff Pi
(Image: © Future)

Guitar World Verdict

Ultimately, Dinosaur Jr. fans are going to love this. For everyone else, it’s a fuzz pedal that is more usable than some of the more wooly examples. If it’s re-voiced from EHX’s standard Ram’s Head, then it’s subtle. So, one for the collectors.


  • +

    Quality vintage fuzz sounds that work well with open chords.

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    It plays nice with an amp.

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  • -

    Might need a noise gate in the chain if stacking.

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    Standard Ram's Head models are a little cheaper.

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

Fuzz is often the Marmite of the gain world: to those who love it, it’s a mammoth sonic tool that can beef up your sound and enhance any riff. To those who hate it, it’s written off as muddy and devoid of articulation. 

One person who is a fan though is Dinosaur Jr.’s J Mascis. Having had an Electro-Harmonix Big Muff on his ’board throughout his career, his love for Big Muffs was displayed through his collection in the documentary Fuzz: The Sound That Revolutionized The World

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Stuart Williams

Stuart is a freelancer for Guitar World and heads up Total Guitar magazine's gear section. He formerly edited Total Guitar and Rhythm magazines in the UK and has been playing guitar and drums for over two decades (his arms are very tired). When he's not working on the site, he can be found gigging and depping in function bands and the odd original project.