Double Muff
Electro-Harmonix Discontinued Released 2010 · Discontinued 2020

Double Muff

Analog two-in-one fuzz/overdrive pedal that pairs two Muff-style fuzz stages in a compact box. It suits guitarists who want a mild fuzz, or a heavier cascaded overdrive, from a single true-bypass pedal.

  • Analog fuzz/overdrive with two cascadable Muff stages
  • Single/Double switch selects one or two stages in series
  • True bypass with status LED
  • 9V battery included; optional 9.6VDC-200mA adapter
  • Draws 3mA; mono signal path
  • Released 2010, discontinued 2020
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Description

The Double Muff combines two fuzz circuits modelled on the 1969 plug-in Muff Fuzz. A Single/Double switch chooses between one stage, which gives a mild, milky distortion, and two stages in series, which gives much heavier overdrive.

Two knobs control the sound. Muff 1 sets the overall output level in either mode. Muff 2 sets the output level of the first stage in Double mode and does nothing in Single mode. A footswitch engages the effect, and an LED lights when it is on. The circuit is true bypass.

The pedal is mono and fully analog. It has a quarter-inch input jack and a quarter-inch amp output jack. It runs on a 9V battery that is included, and an optional 9.6VDC-200mA adapter can be bought separately. The pedal was released in 2010 and discontinued in 2020.

Video

Specifications

Brand
Electro-Harmonix
Model
Double Muff
Category
Effects and pedals

Audio

Circuit
Analog
Audio
Mono
Bypass
True bypass
Modes
Single / Double

Controls

Muff 1
Sets overall output level in either mode
Muff 2
Sets output level of first Muff in Double mode; inactive in Single mode
Single/Double switch
Selects one Muff or two Muffs in series
Footswitch
Engages effect or bypass
LED
Lit when effect is engaged

Connectivity

Input jack
¼" audio input
Amp jack
¼" audio output

Power

Power supply
9V battery included
Optional adapter
9.6VDC-200mA (not included)
Current draw
3mA

Physical

Dimensions (in)
4.5 x 2.75 x 2.1

In the box

Battery
9V battery included

General

Year released
2010
Discontinued
2020
UPC
683274011110

Data: ehx.com; photos: Electro-Harmonix product page · updated 2026-10-13 · Found a mistake? Write to us