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Electro-Harmonix Big Muff

Electro-Harmonix Little Big Muff Pi Original

Review Electro-Harmonix Big Muff


A review of the Electro-Harmonix Deluxe Big Muff Pi

Pi in Your Face For many guitarists, the first thing that comes to mind when they hear the term “fuzz box” is the Big Muff Pi from Electro-Harmonix. With the new Deluxe Big Muff Pi, the company has added some cool additional features to its classic fuzz pedal. read more…

User reviews on Electro-Harmonix Big Muff products

A "traditional" distortion pedal. (Electro-Harmonix - Big Muff v4)

By iznogoud, 31/08/2016
A "traditional" distortion pedal.
It differs from other Big Muffs as it doesn’t have the usual solid state circuit but two op amps : a JRC4558 – the same the Tubescreamer has – and a µA741, making it the first AOp ever built.

While some claim these components are rare so as to sell their pedal, they lie: they’re still being manufactured now and they’re easy to get for 30 to 40 cents – or even less if you buy them by 1000, 10000 or 100000.

Connectors include a 6.35 jack input and output, as well as a 3.5 jack for external supply.

Of course, no computer editor, digital i/o, midi or anything of the kind.
This version was sold for approximately 2 years in the late 70s, approximately 1977-78 or 78-79.


Couldn’t be simpler:
A volume, a tone (that can be switched off using a switch behind the pedal) and a sustain knob which actually commands the distortion rate which is generally left full on: you don’t take a Big Muff for a slight crunch or OD, do you? ;)


# Are the effects effective, adapted and realistic?
You don’t ask a Muff to sound realistic: you choose it to get a filthily, heavily distorted sound that keeps playing when you’ve already stopped.

The Muff AOp or V4 has a slightly more defined sound compared with its old, solid state sister models – still it remains a real Muff sound, hence terribly dirty : after all, it was designed by a guy who was all about psychedelism, and I’m not only speaking music here. ;)

I’m still wondering how they managed to keep the same signature sound while changing technology (inversely i don’t find the recent BigMuff Tone-Wicker to have the same sort of sound at allanymore, and the BM Ge4 has nothing in common with it either, even though it’s another really great 60s-style vintage-y fuzz).
As for this version, the Smashing Pumpkins’ own Billy Corgan uses one, I believe one of Iggy Pop’s guitarist does too but don’t ask me on which record.


# How long have you used it ?
I’ve had this one for a year and a half, but I already owned one in the late 80s until the second half of the 90s.

# Have you tried many other models before this one ?
Which guitar player hasn’t tried an infinite number of distortion boxes???

# Quelle est la particularité que vous aimez le moins ?
L'encombrement! Surtout que le boitier est surtout plein de vide et le circuit imprimé inutilement gros pour le peu qu'il y a dessus!!! En fait, ça pourrait sans problème tenir dans un boitier de petite pédale MXR : y'a + de composants dans un Phase90 que dans une Muff AOp, c'est dire! En même temps, ces bons gros boitiers ont quand même un certain charme, mais là, c'est peut être aussi un peu de nostalgie d'une époque où on se marrait quand même bien plus que de nos jours!

# What are the pros and cons of this effect pedal?
It’s a real, dirty-sounding Big Muff, but in the same time you get a little more control and playing dynamics than with solid state-equipped models.

# How would you judge its value-for-money ?
I got it for 354 bucks one and a half year ago !

I had just made a printed circuit board to make myself one when this offer popped up only 2 miles away from my home.
Still, I also saw some offered for indecent prices eg 150+, which is just crazy, especially as most involve replacement parts less effective sonically, such as RC4558 instead of JRC, Indonesian-made UA741 instead of a real µA741, MKT orange condo (plain sh*t!) instead of greenies. Hard to expect a pedal that age to have never been restored, but doing it properly is just the least thing to do, especially as EHX doesn’t use high-end components. By the way, I’d definitely NOT recommend to use high-end components in a Muff, at risk of making it sound Mr. Clean-style which is definitely NOT what it’s expected to do! I can even easily reproduce this model’s circuit , and there’s even a website which sells printed circuit boards designed in a way, way more compact format!
The only reason I bought it is so as to not waste time assembling it – plus, yeah, granted, this old, vintage box definitely DOES look good.

# Would you do the same choice again ?
I’ve already done it again: I’d owned an original for 6 to 7 years, then a homemade clone, but as I needed money I had to sell both. I then went with digital stuff as I only played my guitar very rarely (so no need to keep all that stuff), then when I took back music I wanted another good old Muff AOp.
Now, such a device isn’t for just anyone: if you like psychedelic, space-rock, grunge or punk, then the Muff is bound to suit you. If you expect a clean, defined distortion, well… wrong direction here: feedback comes quickly, gain has to be at 200, the sound destroys everything around and it all sounds like getting stoned – legally or not. It’s not a hobo, pop-rock distortion, but for anyone fancying Pink Floyd, King Crimson or looking after a really filthy sound: yeah! Actually I suspect the AOp version will even better suit fans of Gilmour or Fripp compared with their solid state counterparts : you really get a better touch control and it sounds more airy and acid while remaining just as dirty.
Otherwise, it’s also very good as a bass distortion, but you’d better have an all-tube bass amp as I only find it so-so on a solid state bass amp.

Hallelujah, a Muff that sounds big to death! (Electro-Harmonix - Deluxe Big Muff Pi)

By nowhereman, 20/11/2014
Deluxe Big Muff PI is the latest evolution of this legendary pedal Disto / Fuzz used by Santana, Jack White, Billy Corgan, Jay Mascis, Korn, Bardo Pond, David Gilmour, Dan Auerbach, Sonic Youth, etc ...

Menu: 5 knobs for the primary circuit: Volume, Tone, Sustain, Attack Gate
2 potentiometers to secondary lecircuit (mids) and Level Freq
1 Bypass General
1 footswitch to engage the Mid tour
1 switch lever called Q (it is on the mid)
1 switch lever called Bass Boost / normal
a Jack socket for pedal Expression


The general configuration is it simple?
a 5 year old can make it work ...

Editing sounds and effects is it easy?

is turned and it's Ok

The manual is clear and sufficient? ...
totally unnecessary given the ease of use ..


I separated a Big Muff Pi, there are two years for a simple reason: I could not get a clean sound ... it was either Deaf or nasal ...

there are fifteen, I bought a Big Muff Sovtek that I could keep 3 days, without doubt for the same reasons ...

it's seeing the video presentation of the Deluxe, I had a revelation! Finally, they added a parametric EQ to change the color of the Big Muff !!!

This addition changes everything! I can finally have a well-loaded midrange and bass and, unlike its big muff base, it is possible to have lots of settings that sound to death!

you want the sound of Gilmour in Pompeii, it is possible
you want the big muff like no other, it is also possible!

the attack function is very effective at low speed

three button Tone (Tone and Level freq) are interdependent and offer a truly different and usable wide variety of sounds!

with the bass boost engaged, your eDeluxe Big Muff becomes Monolithic!

if you plug an expression pedal, you get a sort of Fuzz Wah!


How long have you use it?

I have since 11/17/2014

What is so special that you like most
THE SOOOOON! Adjustment possibilities, in short everything

the least?
Nothing ....

Have you tried many other models before buying it?
an old model (The Violet), the Sovtek, the PI, the germanium and the Tone Wicker ...

this one surpasses them all!

How would you rate the quality / price?

With experience, you do again this choice? ...
pity they are not out there 15 years ....

ps: in attached, I made you a range of home settings (they are not in the manual ...) Gift of the house!

this is the BIG MUFF. and nothing else. (Electro-Harmonix - Big Muff PI)

By shallmar, 23/10/2014
- See the notice above. Fuzz analog tres, but then very typical. 3 knobs. jack in / out. Warning: the power supply is either by 9V battery or either a minijack connector own headphone guy this pedal, and former US. qu'EHX wonder has not changed ca. But hey, an adapter beast was € 3.50 and AC plugs in all serenity on any garland / PSU type boss. however, for the ridiculous price of the big muff, one can forgive this gap.


yes, it's simple.

the manual is simple too.

OUi and the edition is made simple thanks to the knobs very reactive. we do not care less about you. Or it is the written sustain, and well ... it sustain, your rating last long.


Ah the big muff ... Love it or hate it.

In my debut guitar, I bought it solely on its reputation, the detour for a bargain anywhere.

My first impressions? "Caca / yuck / ca is yucky and spin eardrums" I wanted me debarasser.Avant the yield to a low price, I plugged one last time, months after having a row closet.

But after having wrung a lot of high gain pedal, I glimpse that big muff, she not cheat, she does not try to reconcile the overdrive, the distortion is live dirty, nasty, and what I did not like eventually seduce me. Horribly typed reconaissable, ca amused me a lot to play clean and break ca pressing the knob and swing the power chord has galore.

it amuses me, am surprised by his grain, or two years ago I would have returned to live mag saying "this is crap"

She is docile, in its visible appearance of a German tank of WW2. the knobs do what they are asked, always borrowing their dirt. But with other pedals as a compressor and an equalizer, it allows itself to tame, and psychedelic solos pope david gilmour are with a strat.

reconaissable of 1000, I finally gave me part with it. I not use it all the time, but when you have to send the sauce, she reigns unchallenged in the DB. sharp and yucky it right.


-some months.

- No.

- I love his sound, the challenge it poses to the master, its ridiculous price / I do not like his huge size, its special power supply.

_ QP report ... for a PS3 game, you fumble a legend of sound. this is much cheaper than the competition. but also differ.

- If I would do this choice? Not at the beginning guitar, I have taken a more mainstream thing kind boss OD1. but according to my tastes, a big muff would inevitably landed on my PB at one time or another, and I regret not already have it, I rediscovered.

sharp, dirty, huge, boring, it is a challenge that only those who give trouble will appreciate the value.

Saturation while maintaining low (Electro-Harmonix - Bass Big Muff Pi)

By Gredin, 24/09/2014
The big, fat saturation or a violent attack is what you will have with this little gem. In addition you will keep the bass sound of your instrument, it has never been the case with my previous pedals. No lamp but a good grain anyway.


Fiddling with the buttons we discover several personalities to this pedal, you may as well use it to play for the Muse play the Grind-Core. The output without effect-it can be added or not with other pedals. The bass boost is excellent, being paid very low I never take it off to keep the deep bass frequencies.


I used to have a very low distortion sound, the pedal sustain longer while giving a fat grain to the whole.


Unbeatable quality / price rather different colors to play a wide range ... To try and adopt!

News Electro-Harmonix Big Muff

The Bass Big Muff Pi gets Nano

Published on 05/20/14
Along with the Deluxe version of the Big Muff Pi for guitar, Electro-Hamonix shrinks the effect for bass players.

Electro-Harmonix Deluxe Big Muff Pi

Published on 05/20/14

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