The Electro-Harmonix Percolator is an Electro-Harmonix fuzz pedal. Close alternatives include the Fulltone Custom Shop OCD Gold Standard LTD and the EarthQuaker Devices Fuzz Master General. It pairs well with the Marshall Bluesbreaker and the Marshall Plexi 1959SLP.
Electro-Harmonix Percolator
Electro-Harmonix · pedal
The Electro-Harmonix Percolator is an analog harmonic saturator, overdrive, and fuzz pedal that reimagines the rare 1970s Interfax Harmonic Percolator circuit, a cult favorite made famous by Steve Albini use on stage and in the studio. It centers on Harmonics and Balance controls for gain and output level, plus a Bias knob that shifts the circuit from smooth transistor-like drive to pseudo-octave and gated Velcro-style fuzz, and a Fuzz/Drive switch that toggles between standard clipping and a lifted-diode mode for a rawer, more organic character. Built on asymmetrical, even-order harmonic clipping, it produces tones ranging from chewy, crunchy overdrive to ripping, unstable fuzz textures rather than a single smooth gain stage. It suits alternative, noise rock, and experimental players wanting an unconventional, harmonically rich drive pedal distinct from typical Tube Screamer or Big Muff voicings, at an affordable price point.
What stands out
“It centers on Harmonics and Balance controls for gain and output level, plus a Bias knob that shifts the circuit from smooth transistor-like drive to pseudo-octave and gated Velcro-style fuzz, and a Fuzz/Drive switch that toggles between st…”
— from the listing
“Built on asymmetrical, even-order harmonic clipping, it produces tones ranging from chewy, crunchy overdrive to ripping, unstable fuzz textures”
— from the listing
“As a reviewer, the Percolator most interesting quality is how its even-order harmonic clipping produces a genuinely different flavor of gain than typical diode-clipping overdrives, brash and slightly raspy in a way that cuts distinctively i…”
— from the reviews
“It suits alternative, noise rock, and experimental players wanting an unconventional, harmonically rich drive pedal distinct from typical Tube Screamer or Big Muff voicings, at an affordable price point”
— from the listing
“In the signal chain the Bias control is the key interaction point, letting players sweep from clean-ish transistor drive through pseudo-octave and into gated Velcro fuzz , and the Fuzz/Drive switch further reshapes cl…”
— from the community notes
- fuzz
- clipping
- octave
- harmonic
- transistor
- diode
- drive
- overdrive
Good for
- Busking
- Live
- Practice
- Studio
Genres the Electro-Harmonix Percolator is commonly used in
- Noise Rock
- Experimental
- Alternative Rock
- Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues
cited
Inferred from shared tonal signals, not a stated genre tag. - Stoner Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Electro-Harmonix Percolator
Marshall Bluesbreaker
Marshall
18% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (crunchy → mid-forward)
What Marshall Bluesbreaker brings here leans toward compressed — that's worth building a pairing around
Comes later in the signal chain
Marshall Plexi 1959SLP
amplifier
18% matchWhat Marshall Plexi 1959SLP brings here leans toward aggressive — that's worth building a pairing around
Comes later in the signal chain
Ceriatone HRM 50
Ceriatone
tonal matchComes later in the signal chain
Put Ceriatone HRM 50 after Electro-Harmonix Percolator
Ceriatone Overtone Special HRM Bluesmaster 50
Ceriatone
tonal matchComes later in the signal chain
Ceriatone Overtone Special HRM Bluesmaster 50 goes after Electro-Harmonix Percolator in the chain
Magnatone 460
Magnatone
tonal matchComes later in the signal chain
Magnatone 460 stacks modulated on top of the fuzzy already here
Pedals that stack with the Electro-Harmonix Percolator
Walrus Audio Ages
Walrus Audio
21% matchgain stackingStacks two gain stages for more saturation than either produces alone. (fuzzy → clean boost)
Put Walrus Audio Ages in front and the fuzzy tone leans further toward clean boost
Comes earlier in the signal chain
Beetronics Buzzter Boost Preamp
Beetronics
21% matchgain stackingStacks two gain stages for more saturation than either produces alone. (fuzzy → clean boost)
Beetronics Buzzter Boost Preamp stacks clean boost on top of the fuzzy already here
Comes earlier in the signal chain
Caroline Guitar Company Parabola State Tremolo
Caroline Guitar Company
18% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Caroline Guitar Company Parabola State Tremolo after Electro-Harmonix Percolator in the signal chain, clear of Electro-Harmonix Percolator's own gain stage
Comes later in the signal chain
PRS Mary-Cries Compressor
PRS
12% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.
Electro-Harmonix Percolator's own fuzzy character is the real reason this is worth trying
Comes earlier in the signal chain
Walrus Audio Mako D1 High-Fidelity Stereo Delay V1
Walrus Audio
10% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)
Keep Electro-Harmonix Percolator's fuzzy voice out front: Walrus Audio Mako D1 High-Fidelity Stereo Delay V1 goes after Electro-Harmonix Percolator in the signal chain so its pristine voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Electro-Harmonix Canyon
Electro-Harmonix
9% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → octave)
Keep Electro-Harmonix Percolator's fuzzy voice out front: Electro-Harmonix Canyon goes after Electro-Harmonix Percolator in the signal chain so its modulated voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
EarthQuaker Devices Swiss Things
EarthQuaker Devices
EarthQuaker Devices Utility Series Buffer Preamp
EarthQuaker Devices
tonal matchComes later in the signal chain
EarthQuaker Devices Utility Series Buffer Preamp stacks clean boost on top of the fuzzy already here
Alternatives
Fulltone Custom Shop OCD Gold Standard LTD
Fulltone
64% similarityShared character: circuit, gain, aggressive playing
EarthQuaker Devices Fuzz Master General
EarthQuaker Devices
63% similarityShared character: raw, one octave, circuit
Tru-Fi Super Fuzz PBF Compact Version
Tru Fi
59% similarityShared character: big muff, one octave, mix
EarthQuaker Devices Fuzz Master General V2
EarthQuaker Devices
58% similarityShared character: one octave, mix, fuzz
Tru-Fi Super Fuzz Version 2
Tru Fi
55% similarityShared character: one octave, fuzz, smooth
Zvex Machine
Zvex
53% similarityShared character: fuzz, overdrive
Beetronics Swarm SW1529 Custom
Beetronics
51% similarityShared character: fuzz, aggressive playing
Vox VFZ-1
Vox
51% similarityShared character: raw, fuzz, gain
JHS Pedals JHS Lizard Queen
JHS Pedals
51% similarityShared character: one octave, circuit, aggressive playing
Beetronics Vezzpa
Beetronics
50% similarityShared character: one octave, circuit, mix
Catalinbread Karma Suture
Catalinbread
50% similarityShared character: fuzz, alternative, gain
Subdecay Noise Theory
Subdecay
50% similarityShared character: signal, fuzz
See all alternatives to the Electro-Harmonix Percolator (cheaper + boutique) →
Questions people ask
What are good alternatives to the Electro-Harmonix Percolator?+
The closest matches in character are the Fulltone Custom Shop OCD Gold Standard LTD, the EarthQuaker Devices Fuzz Master General, the Tru-Fi Super Fuzz PBF Compact Version.
What pairs well with the Electro-Harmonix Percolator?+
Strong matches from rig and tone-complementarity evidence: Marshall Bluesbreaker, Marshall Plexi 1959SLP, Ceriatone HRM 50 — What Marshall Bluesbreaker brings here leans toward compressed — that's worth building a pairing around.