Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal with Mid-Shift

Fuzz Pedal with Footswitchable Mids Section, Noise Gate, and Expression Pedal Input
4.5/5 7 Write review Item ID: DlxBigMuffPi
Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal with Mid-Shift image 1
Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal with Mid-Shift image 1
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Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal with Mid-Shift
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The Classic Fuzz Tricked Out with New Features!

Fuzz lovers have gravitated toward the Big Muff for over four decades. It's been heard on countless records, and is renowned for its gnarly edge and nearly endless sustain. The electro-harmonix Deluxe Big Muff Pi fuzz pedal re-imagines this classic, packing it full of everything that made the original so awesome while adding new features to take the classic to new heights. Leading the charge of add-ons is a footswitchable Mids section, letting you instantly cut through the mix. Better yet, the Mids section is sweepable via an expression pedal, so you can conjure fuzzy wah-style sounds with ease. The Deluxe Big Muff Pi is an incredibly flexible fuzz!

electro-harmonix Deluxe Big Muff Pi at a Glance:
  • Classic Big Muff tones
  • Tone-shaping tools for added flexibility
  • Expression pedal input for real-time mid sweeps
Classic Big Muff tones

For over 40 years, guitarists have plugged into the Big Muff Pi for the grit and violin-like sustain it imparts to your tone. It's one of the most instantly recognizable sounds, famously heard on classic tracks by everyone from Jimi to Mudhoney and beyond. If you haven't been initiated into the cult of the Big Muff Pi, the Deluxe Big Muff Pi is an excellent place to start, as it packs all the sonic fury of the original, with a ton of extra control for the tweaky tone freak in you.

Tone-shaping tools for added flexibility

On top of the tried-and-true Big Muff tone, the Deluxe Big Muff Pi is brimming over with tone-shaping tools. New on this incarnation is a footswitchable Midrange section, complete with a variable center frequency and boost/cut knobs. This allows you to focus the mids along with kicking them in anytime you need a little more "oomph" to cut through the mix. With the traditional Big Muff, chords could get a little mushy (which was part of the charm!), especially at high gain settings. The addition of an adjustable Attack control compensates for this, letting each note be heard. The noise gate keeps hum and buzz at bay while keeping your tone intact. Rounding out the new controls is a bass boost switch to thicken up the low end. No matter how you set your Muff, the Deluxe Big Muff Pi lets you shape your sound to your exact liking.

Expression pedal input for real-time mid sweeps

All of the tone-shaping power built into this incarnation of the Big Muff is awesome, but what really makes the Deluxe Big Muff Pi a step above a traditional Muff is the expression pedal input. It gives you control over the mids, effectively turning the Deluxe Big Muff Pi into the meanest wah you've ever heard. And take it from the tone gurus at Sweetwater, the expression pedal takes one of our favorite fuzzes to a whole new level.

electro-harmonix Deluxe Big Muff Pi Features:
  • Traditional Big Muff tones for classic fuzz
  • Noise gate keeps unwanted hum and buzz under control
  • Footswitchable Mids Boost/Cut lets you shape your sound to cut through the mix
  • Attack control keeps each note distinct, even when playing chords
  • Bass boost for additional low end content
  • Expression pedal input controls the Mids for a cool fuzz wah effect
  • True Bypass keeps your tone intact
Get classic fuzz tones and a whole lot more with the electro-harmonix Deluxe Big Muff Pi!

Tech Specs

Pedal Type Fuzz
Inputs 1 x Instrument, 1 x Expression Pedal
Outputs 1 x 1/4"
Batteries 1 x 9V
Power Supply Included No
Manufacturer Part Number DLXBM

Customer Reviews

Based on 7 reviews
Write your review

Deluxe Big Muff Pi Fuzz

This pedal has taken front row on my pedal board. The distortion is smoother than butter, with a wide tonal palette. Very awesome EH. Thanks Sweetwater.
Music background: Guitar, pedal steel

Best Muff to date

I have 5 fuzzes at the beggining of my chain... Wampler velvet fuzz for solos, fat fuzz factory for power chords and whacky stuff and I used to use the Swollen Pickle when I wanted that very violent and eternal sustain sound with amazong low end... But after gettig the deluxe big muff, I might retire the pickle... Don't get me wrong , it's still one of my fave pedals... And the low end on that sucker is just too much (in a good way) sounds like you are tuned lower... But I must say the muff feels a lot creamier and the sustain with the gate all the way off is pretty impressive... No, people haven't mentioned this, but if you buy an expression pedal is just a monster!!! A MONSTER that growls! I bought a pro line exp pedal for 30 bucks and wow... It is so much fun to play this thing.... Sometimes I use a wha pedal after my od's or fuzzes for that growl ... But this sounds a lot more synthy, very awesome unique sound... If people here love the deluxe BMP without even trying it woth the expression pedal.... Oh baby... You just wait!!!
Music background: Multi instrumentalist founder of Subtle System


All the Big Muff models' tones can be tweaked on this one including the much-sought-after Ram's Head. The Mid-Shift is a big PLUS! It has a very smooth and warm sound. Kudos to Mike Matthews and the EHX team!
Music background: Hobbyist

More than I expected

Don't hate me, BMP fans, but I'm not a fuzz fan. I do appreciate the sound, and I wanted a fuzz that was versatile for those times that the music calls for that type of tone. That said, the features on this joker are incredible! Versatility is an understatement! I've found a number of useful tones, even for a non-muff fan. However, what really blew me away was when I combined it with a Soul Food (before the DBMP), WOW!!! The Soul Food really fills in those upper frequencies and makes it just a MONSTER!!! A full frequency tone machine that will "rip your head off!" It's turned me into one of "those guys" who use too many quotations, CAPITAL LETTERS and exclamation points!!!!!
Music background: Educator, Musician, Pedal Addict

EHX did it again

This pedal is what they say it is. After tweaking for a week to get the exact setting I wanted, it was bliss. The frequency knob (mid-shift) is why I bought the DELUXE BIG MUFF PI in the first place, adjusting it will give that half-cocked wah sound, great for a lead tone. It has a nice way of gain stacking with an overdrive pedal. Great bye. You can get hundreds of different tones from this pedal.
Music background: Hobbyist / X-pro
See also: Distortion Pedals, Electro-Harmonix, Electro-Harmonix Distortion, Overdrive, Boost & Fuzz