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Fuzz · Electro-Harmonix

Electro-Harmonix Nano Bass Big Muff Pi

A compact version of the Electro-Harmonix Big Muff fuzz designed for bass, featuring a blend control that maintains low-end response while delivering fuzz saturation. Guitar World gave it 4.5 out of 5 stars, praising its adaptable fuzz character and intuitive controls, though noting the battery compartment requires four screws to access.

  • 9V DC · center −
  • 4 mA
New
from $78.12
Used (asking)
from $59

The rundown

Highlights

  • Nano-sized fuzz pedal with blend control for preserving bass frequencies
  • Runs on 9V DC battery or external supply
  • Works for both bass and guitar
  • Simple control layout with flexible tonal range
  • Compact dimensions at 71.6 x 114.3 mm

Best for

Bass players seeking fuzz tones with retained low-end definition, though it also functions as a versatile fuzz for guitarists.

Professional reviews

What the press rated it. We link to each review; read the full piece for the details.

Quick facts

Power
9V DC
Current draw
4 mA
Polarity
Center negative
Dimensions
71.6 × 114.3 mm
Status
In production

Where to buy Electro-Harmonix Nano Bass Big Muff Pi

$78.12 lowest new price · Reverb

Used listings asking $59–$101.50, median $99 (3 listings, small sample). Asking prices, not sold prices.

Current offers
SellerConditionPriceLink
ReverbUsed$59View
ReverbNew$78.12View
ReverbNew$94.30View
ReverbNew$94.30View
ReverbNew$94.30View
ReverbNew$94.30View
ReverbNew$94.30View
ReverbNew$94.30View
ReverbNew$94.30View
ReverbNew$94.30View

Prices last checked 20 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power does the Electro-Harmonix Nano Bass Big Muff Pi use?

The Electro-Harmonix Nano Bass Big Muff Pi runs on a 9V DC supply at 4 mA, center-negative, and is battery-compatible.

How big is this pedal?

The Electro-Harmonix Nano Bass Big Muff Pi measures 71.6 x 114.3 mm, making it a compact nano-sized pedal.

What controls does it have?

The Electro-Harmonix Nano Bass Big Muff Pi features a simple control set that includes a blend control for managing fuzz saturation relative to your original signal.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.