Pricing and availability

We compare 600+ stores and found this item at 10 stores. Prices updated .

Sweetwater
5.0 (32)
$98.00
Guitar Center
5.0 (29)
$98.00
Amazon
4.5 (444)
$96.95
Reverb
5.0 (49)
$79.61 New
$51.51 Used
Musician's Friend
4.0 (63)
$98.00
zZounds
5.0 (6)
$98.00
B&H
5.0 (1)
$98.00
Thomann
4.6 (808)
$79.00 $77.00 $2.00 · All time low

Average Price: $89

Standard/Professional

$70

$201+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 7 merchants for "Electro-Harmonix Bass Big Muff Pi Fuzz". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Electro-Harmonix Bass Big Muff Pi: A progeny born with the drive of the classic Big Muff Pi and specially tailored for bass, this pedal is a legend reborn. It captures the iconic fuzz of the Big Muff Pi, optimized with a beefy bottom end that cuts through any mix. It's a perfect blend of the '70s Electro-Harmonix Big Muff Pi and the Sovtek Big Muff Pi, both coveted for their signature fuzz. But this pedal takes it up a notch with its bass-focused design, a blessing for bassists vying for the Big Muff sound. The Bass Big Muff Pi not only works wonders with bass but also shines with baritone guitars, keyboards, and other instruments. It's built to last, ready to rock and roll, and surprisingly adaptable to the road.

Key Features:

  • Volume, Tone, and Sustain knobs for precise control over the fuzz effect
  • Dual output for flexible signal routing: a standard Effect Out for the distorted signal and a Dry Out for a clean, unadulterated signal
  • Bass Boost/Dry toggle switch for an added low-frequency punch
  • Thick, rich fuzz tones optimized for bass
  • Rugged, road-ready construction with a tough die-cast chassis
  • True bypass to maintain the integrity of your tone when the pedal is disengaged
  • Compatible with a 9V battery or optional EHX power supply

Owner's manual

Electro-Harmonix Bass Big Muff Pi Fuzz User Manual

Product specs

Pedal Type Bass Fuzz
Analog/Digital Analog
Inputs 1 x 1/4" (Instrument)
Outputs 2 x 1/4" (dry out, effect out)
Bypass Switching True Bypass
EQ Tone Control, 3-way boost switch
Controls Sustain, Volume
Power Source 9V DC power supply (sold separately)
Batteries 1 x 9V
Height 2.25"
Width 4"
Depth 4.75"
Weight 1 lbs.

FAQs

Is the Electro-Harmonix Bass Big Muff Pi Fuzz suitable for live performances?

Yes, the Electro-Harmonix Bass Big Muff Pi Fuzz is designed for live performances with its durable build and true bypass switching, ensuring your tone remains intact when the pedal is off.

How does the Electro-Harmonix Bass Big Muff Pi Fuzz affect my bass tone?

The Bass Big Muff Pi Fuzz provides a smooth, saturated fuzz sound with a tone control and a 3-way boost switch, allowing you to shape your bass tone for various styles.

Can the Electro-Harmonix Bass Big Muff Pi Fuzz be powered by a 9V power supply?

Yes, the pedal can be powered by a 9V DC power supply, which is sold separately, or by a 9V battery for convenience.

Does the Electro-Harmonix Bass Big Muff Pi Fuzz have multiple output options?

Yes, it features two 1/4" outputs: a dry out and an effect out, providing flexibility in routing your signal.

Is the Electro-Harmonix Bass Big Muff Pi Fuzz an analog pedal?

Yes, the Bass Big Muff Pi Fuzz is an analog pedal, known for its warm and natural sound characteristics.

EHX

EHX

Electro-Harmonix Bass Big Muff Pi Fuzz / Distortion / Sustainer Pedal (Demo by Jack Conte)

Video thumbnail for Electro-Harmonix Bass Big Muff Pi Fuzz / Distortion / Sustainer Pedal (Demo by Jack Conte) by EHX

Electro-Harmonix Bass Big Muff Pi Fuzz / Distortion / Sustainer Pedal (Demo by Jack Conte)

EHX

EHX

Video thumbnail for EHX BASS BIG MUFF PI - GEAR UP by THE MUSICIAN NETWORK (TMNtv)

EHX BASS BIG MUFF PI - GEAR UP

THE MUSICIAN NETWORK (TMNtv)

THE MUSICIAN NETWORK (TMNtv)

Video thumbnail for Is The EHX Bass Big Muff Worth It? - Demo & Review! by OnlineBass Guitar

Is The EHX Bass Big Muff Worth It? - Demo & Review!

OnlineBass Guitar

OnlineBass Guitar

Video thumbnail for Electro Harmonix Deluxe Bass Big Muff vs. Bass Big Muff vs. Nano Bass Big Muff vs. Green Russian by Made by Miike

Electro Harmonix Deluxe Bass Big Muff vs. Bass Big Muff vs. Nano Bass Big Muff vs. Green Russian

Made by Miike

Made by Miike

Video thumbnail for Bass Big Muff - ElectroHarmonix (Review/Demo) by FrostByte

Bass Big Muff - ElectroHarmonix (Review/Demo)

FrostByte

FrostByte

Video thumbnail for Electro Harmonix Bass Big Muff Pi Fuzz - One Bass Muff to Rule Them All by PMTVUK

Electro Harmonix Bass Big Muff Pi Fuzz - One Bass Muff to Rule Them All

PMTVUK

PMTVUK

Video thumbnail for Electro-Harmonix Bass Big Muff Pi | Reverb Demo Video by Reverb

Electro-Harmonix Bass Big Muff Pi | Reverb Demo Video

Reverb

Reverb

Video thumbnail for ELECTRO HARMONIX Bass Big Muff Pi by session

ELECTRO HARMONIX Bass Big Muff Pi

session

session

Video thumbnail for Electro-Harmonix - Bass Big Muff by Bass Stuff

Electro-Harmonix - Bass Big Muff

Bass Stuff

Bass Stuff

Video thumbnail for EHX Bass Big Muff Pi by Nikita Astrakhantsev

EHX Bass Big Muff Pi

Nikita Astrakhantsev

Nikita Astrakhantsev

Video thumbnail for I really like this pedal. The budget friendly and great sounding electro-harmonix Bass Big Muff Pi. by the wetter bass

I really like this pedal. The budget friendly and great sounding electro-harmonix Bass Big Muff Pi.

the wetter bass

the wetter bass

Video thumbnail for EHX Bass Big Muff Pi Pedal Demo by Jack Conte by EHX

EHX Bass Big Muff Pi Pedal Demo by Jack Conte

EHX

EHX

Reviews

PROS

  • Wide range of tones, from light fuzz to heavy distortion

  • Durable die-cast metal construction

  • Three EQ settings (Bass Boost, Normal, Dry) for tonal versatility

  • Maintains low-end presence, even with heavy fuzz

  • Good for both live performances and studio recording

  • Dual outputs for effect and dry signal blending

  • Simple controls make it easy to dial in desired sound

  • Attractive and distinctive pedal design

  • Affordable price point for its features

  • Works well with bass and guitar

CONS

  • Takes time to find the desired sound due to its versatility

  • Some users find the bass boost too dark or muddy

  • The dry mode can increase volume unexpectedly

  • Knobs may feel cheap to some users

  • Large size can take up significant pedalboard space

  • Some users report hissing noise or loss of detail at higher fuzz settings

  • Not all users appreciate the specific character of its fuzz

  • Minor design flaws, like the placement of the small switch

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Electro-Harmonix Bass Big Muff Pi Fuzz.

Comparisons

  • Some users find the Way Huge Pork & Pickle superior due to its compact size, versatile fuzz/overdrive toggle, and better midrange presence compared to the Big Muff series.

    Source
  • The Aguilar Agro is favored for dirt over the Bass Big Muff due to its more suitable tone for certain users.

    Source
  • The Abominable Electronics' Deluxe Hail Satan Fuzz is cited as surpassing the Bass Big Muff in mid-boost capabilities, making it more adept at cutting through live mixes.

    Source
  • A Deluxe model of the Bass Big Muff features a blend knob and a gate, which some users prefer over the basic model's blend switch for better functionality.

    Source
  • The original green Russian Sovtek is reported to offer more organic texture and warmth compared to the Bass Big Muff, which some find lacking in pronounced texture.

    Source

Features and functionality

  • The pedal's toggle set to bass boost can enhance the effect when the tone on the bass is fully open.

    Source
  • A clean out and FX out feature allows for signal splitting to two amps or one amp with two inputs for better blending options.

    Source
  • The Bass Big Muff Pi includes a dry blend feature, allowing simultaneous clean and distorted signals, which helps maintain low-end clarity in a mix.

    Source
  • A blend knob on the Deluxe model enables precise mixing of clean and distorted signals, crucial for maintaining bass clarity and presence in a band mix.

    Source
  • The Deluxe Bass Big Muff Pi includes a crossover section, which allows for creating a range from light funky fuzz to heavy distortion while maintaining low-end presence.

    Source
  • The Deluxe Bass Big Muff Pi version offers an XLR DI output, beneficial for both recording and live performance setups.

    Source

User experience

  • Some find the pedal too harsh alone, but it integrates well in a mix with multiple instruments for a fuller sound.

    Source

Use cases and applications

  • Fuzz can be used subtly in upbeat pop music, not just for aggressive tones.

    Source
  • The pedal can effectively mimic the primary lick in Royal Blood's "Lights Out" using only fuzz.

    Source
  • Dialing the tone and sustain down initially and gradually increasing them can help find a desirable fuzz sound.

    Source
  • The pedal excels when stacked with an EHX Battalion Preamp, allowing for a customizable combination of dry, fuzz, and distortion signals in a bass setup.

    Source
  • The pedal is effective for achieving sounds similar to Muse's "Hysteria," making it suitable for covers of songs like "Starlight" and "Time is Running Out."

    Source
  • It's mentioned that the pedal can overly thicken guitar tones in live settings, potentially causing issues with being heard due to its significant mid scoop.

    Source
  • Owners note the Bass Big Muff Pi can mix well for heavy rhythm guitar and bass recordings, but struggles with lead parts due to its mid scoop.

    Source

Mods and upgrades

  • Pairing the Deluxe Bass Big Muff Pi with a TC Electronic Spark booster can help address mid-scoop issues and enhance the pedal's ability to cut through a band mix.

    Source
Add

4.5 out of 5

Based on 39 Reviews and 274 Ratings

5 star
4 star
3 star
2 star
1 star
valenltd

BEST PEDAL FOR BASS EVER

this is the best pedal i ever get in my life, i buyed it twice, 100usd

Preferred Settings + Usage:

vol: 5, tone: 7, sustain:7

sean_stevens

It's a great distortion pedal for a great price!

I am an ex-guitarist, who switched to bass guitar. I predominantly play rock, metal, grunge, etc., and I bought this pedal used for $40! It is a great pedal, especially considering the price point, although I do wish that (despite this being a distortion pedal) this had the ability to play with a little less distortion level, but I'm not going to complain! The build quality is superb, although I will say that the Big Muff Pi is unnervingly lightweight, yet still solid.

From Gear Setup
colby_haugen_xlvii

Great Bass Pedal

Classic thick, gritty bass fuzz with lots of sustain, and versatile to many genres. The blend control is great, and the pedal’s overall very durable. It can however, get muddy in a mix and it’s pretty noisy.

From Gear Setup
P

Unique Sound

What they say about it is true, it has a unique sound, magic. Of course, it has many different positions, which means you have to spend some time finding your perfect sound, but once you find it you wouldn't change it for anything. It loses bass, so you have to use a double line (I use the boss ls-2).

This review has been translated automatically into English. See original
Roles:
Genres:
paul_sepp

Very versatile

Very versatile, use it as a dark muff on both bass and guitar. Absolutely love it.

chrisdesign

Meh

The fuzz is what it is. No complaint there. Yet the bass boost function was too dark for my needs and the dry knob didn’t hit the right spot for my taste. I got the deluxe version and am delighted.

Genres:
skytimesfive

shit

so people may hate me for this people may not, it seems to be a bit of a marmite pedal but i HATE the bass big muff SO SO much it just for a pedal thats marketed for bass it ate my low end completely and i just feel sick whenever i see one. i wish it never existed

Genres:
pascal_landry

Very good

I really like the fuzz effect and the selector adds 3 differents ways to mix the bass signal with the fuzz.

Roles:
eve_ripper

cheap fuzz

Of course Big Muff is a classic. Russian Green Muff gives great bass fuzz, but this is another story. EHX Bass Big Muff will give you fuzz tone which you would like or hate. I prefer to blend DRY signal with EFFECTED. There is a fail that boosts audio when you turn up the volume which acts as a blend in "DRY" mode. You can live with it in cases when you want to put fuzz in some song moments. But adjusting it to signal without pedal is tricky. If you don't like blending you can use it's splitter which can send distorted and clean signals parallel. I also like this pedal on guitar. Anyway, it's cheap and a good strart point.

From Gear Setup
hellviz

Simply the muff

I have no much things to say. This is the Muff; you must try the sound of it. This pedal is really useful thanks to the splitter out (effect and dry) so you can work a lot with mixing the dry with the effect on several amps. Electro Harmonics always make a well-crafted pedals so it's really difficult to broke it. I played it in several shows, with dust, mud, beer and many other lethal atmospherical agents and it still works very well as the d1. Thank you EH for made this little beast.

Artist usage

Add artist
See how Flea uses Electro-Harmonix Bass Big Muff Pi Fuzz

Flea

Bassist

Red Hot Chili Peppers

...
Verified via Photo

Visible near the Ehx Bass Clone .

See how John Paul Jones uses Electro-Harmonix Bass Big Muff Pi Fuzz

John Paul Jones

Bassist, Keyboardist

Led Zeppelin

...
Verified via Mixdown Magazine

The album has quite a few distorted bass sounds. What effects are you using? On the record, most of the distortion comes from running bass through Josh’s guitar amps. Live, I’m using an Electro- Harmonix Big Muff.

See how Bootsy Collins uses Electro-Harmonix Bass Big Muff Pi Fuzz

Bootsy Collins

Singer, Bassist

Funkadelic

...
Verified via YouTube

Featured in this November 15, 2011 video at 2:09.

See how Fat Mike uses Electro-Harmonix Bass Big Muff Pi Fuzz

Fat Mike

Singer, Bassist

NOFX

...
Verified via Google

Fat Mike uses the Electro-Harmonix Bass Big Muff Pi pedal for songs such as "Medio-core" and the intro of "The Decline," as evidenced by images found through a Google search.

See how Adam Neely uses Electro-Harmonix Bass Big Muff Pi Fuzz

Adam Neely

Bassist, Keyboardist

Sungazer

...
Verified via YouTube

Used in this video and specified in its description.

See how MISA uses Electro-Harmonix Bass Big Muff Pi Fuzz

MISA

Bassist

Band-Maid

...
Verified via Photo

The picture shows her full board in september 2017.

See how Lucas Skinner uses Electro-Harmonix Bass Big Muff Pi Fuzz

Lucas Skinner

Singer, Bassist

King Gizzard and The Lizard Wizard

...
Verified via Imgur

In this photo uploaded to Lucas' Instagram story, an EHX Bass Big Muff can be seen on his board.

See how Cameron Picton uses Electro-Harmonix Bass Big Muff Pi Fuzz

Cameron Picton

Singer, Guitarist

Black Midi

...
Verified via Photo

Bottom right hand corner, Bass Big Muff Pi on the top of his board

See how Scott Shriner uses Electro-Harmonix Bass Big Muff Pi Fuzz

Scott Shriner

Bassist

Weezer

...
Verified via Photo

Scott uses an EHX Big Muff for Bass in this picture form the EHX website.

See how Trevor Dunn uses Electro-Harmonix Bass Big Muff Pi Fuzz

Trevor Dunn

Bassist

Melvins

...
Verified via Photo

Last in a tight chain of tuner -> compressor -> big muff.

See how Shigeto uses Electro-Harmonix Bass Big Muff Pi Fuzz

Shigeto

Music Producer

...
Verified via Photo

A Bass Big Muff Pi can be seen in this photo from this interview. https://xlr8r.com/gear/in-the-studio-shigeto/

See how Stefan Olsdal uses Electro-Harmonix Bass Big Muff Pi Fuzz

Stefan Olsdal

Guitarist, Bassist

Placebo

...
Verified via Flickr

In this photo taken in 2014, his pedalboard is seen, which shows the Electro-Harmonix XO Big Muff Pi pedal.

Used With

Based on how musicians on Equipboard use Electro-Harmonix Bass Big Muff Pi Fuzz, it is most commonly used with the following gear.

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Community setups

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