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Electro-Harmonix J Mascis Signature Ram's Head Big Muff Fuzz Pedal Reviews

J Mascis Signature Big Muff with Volume, Tone, and Sustain Controls

For most players, an “always-on” pedal is a subtle boost or a pinch of reverb. However, most players are not J Mascis of Dinosaur Jr., an indie-rock guitar hero and a man who proudly proclaims “the Muff is always on.” The Electro-Harmonix J Mascis Signature Ram’s Head Big Muff is a replication of one of his favorite Muffs, the 1973 V2 Violet Ram’s Head Big Muff Pi — a renowned fuzz at Sweetwater for its ability to remain clear, present, and defined on even the most crushing settings. Dinosaur Jr.’s tonal foundation owes much to this mighty pedal, and it’s been the sonic core of J’s laid-back 6-string virtuosity across the band’s entire output. If you’re looking to capture the sound that defined the "Freak Scene" of ’80s and ’90s indie rock, string up the ol’ Jazzmaster and kick on the Electro-Harmonix J Mascis Signature Ram’s Head Big Muff!

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Highest Rated Reviews

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Absolutely Amazing

By Douglas Manheim from Bloomington, IN on February 20, 2024 Music Background: Self taught musician of 15 years. Guitar, Bass, Drums, Producer, DJ

This is my first Big Muff so I may be a little biased but holy cow this pedal is the absolute best thing to ever happen to me in my musical career. Others may say this is "just another Muff" or "an overpriced version of the Ram's Head" but boy let me tell you how this magic genie in a bottle transformed my sad, strange little tone into the mammoth that is in this box. It does rhythm and lead BEAUTIFULLY in the simple step of a button. I once thought I was exclusively a rhythm guitar player until I heard the sonic potential of this special piece of equipment. Worth every penny.

Great pedal!

By Corey Townsend from Atlanta, GA on March 30, 2023

I have two of these and they sound great. Much more strongly built than the old school Big Muffs it replicates. I love this pedal. Just don't get crazy and run one into another... Trust me, it is some sonic craziness. LOL. I got mine off of Reverb when they first came out, should have known to go to Sweetwater, they always have a great price!

Sweet and affordable

By Sweetwater Customer on January 5, 2023 Music Background: Playing in bands for 45 years .

This little pedal sounds great ! Really happy with it . It also doesn't take up much valuable real estate !

Fits The Bill Nicely

By Derek B on December 23, 2022

Like everyone else, I researched/played fuzz pedals until I was about ready to puke. I purchased this one because I felt it provided a good versitle sound. For me it came down to the rams head and green russian with the main difference being the amount of low end for me. Welp, I can tell you the J Mascis is great and has plenty of low end for me to cover The Black Keys to Jimmy. Is it exact, no, but it's a great fuzz that can cover a lot of ground and I feel the string articulation is still pretty dang good.

All around great pedal

By Sweetwater Customer on December 16, 2022

The tone sweep is nice and there are some interesting spots because it is linear while kind of non-linear at 10 to noon and about 1-2 on tone control. I can't say why but usually I had purchased like more expensive versions of ehx pedals. That being said, I think people need to realize that these are quite accurate reissues and circuits, and just because it is an affordable pedal doesn't mean it isn't great.

Worth the price for the Sig Pie

By George Lester from LEBANON, OR on February 2, 2024 Music Background: 50 Plus years guitar, some harmonica and keys

I do believe this special edition is worth it, it does have great tonal sound to discover. I just knock off 1 star because EHX put a switch on it that "pops" really really loud when engaged. Why EHX do you make a special pedal and to be fair, for the price charged, blow it with a low end switch?Send some of your Designers and Engineers over to Denmark, so you can learn how to do that part correctly.

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