The Electro-Harmonix Flatiron Fuzz is an Electro-Harmonix fuzz pedal, currently around $72.57. Close alternatives include the Electro-Harmonix Big Muff Pi and the ProCo RAT 2. It pairs well with the Friedman Dirty Shirley and the Friedman BE-Mini Head.
Electro-Harmonix Flatiron Fuzz
Electro-Harmonix · pedal
The Electro-Harmonix Flatiron Fuzz is a classic op amp powered fuzz and distortion based on the hard clipping op amp circuit famously associated with early ProCo Rat and op amp Big Muff style tones. It has three controls, Volume for output, Drive for sustain and distortion, and a Filter that acts as a movable low pass cutoff to shape brightness. At lower drive it stays fairly clean with a pleasing mild distortion, while higher settings deliver thick, meaty, aggressive fuzz distortion. Compact and straightforward, it suits rock, punk, alternative and garage players who want a versatile op amp fuzz distortion ranging from light grit to thick, cutting saturation with flexible tone shaping.
- big muff
- fuzz
- distortion
- sustain
- compressed
- midrange
- rhythm
- transistor
Price updated Aug 27, 2026
Genres the Electro-Harmonix Flatiron Fuzz is commonly used in
- Punk
- Shoegaze
- Grunge
- Alternative Rock
- Classic Rock
- Rock
Amps that pair well with the Electro-Harmonix Flatiron Fuzz
Friedman Dirty Shirley
Friedman
28% matchFriedman Dirty Shirley layers high gain onto an already mid-forward signal
Friedman BE-Mini Head
Friedman
tonal matchRun mid-forward into Friedman BE-Mini Head for more high gain on top
Magnatone SL100 Slash 100 Watt Head Black
Magnatone
tonal matchPut Magnatone SL100 Slash 100 Watt Head Black in front and the mid-forward tone leans further toward high gain
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchPut Hughes & Kettner Warp 7 in front and the mid-forward tone leans further toward high gain
Pedals that stack with the Electro-Harmonix Flatiron Fuzz
Fulltone OF-2 Octafuzz
Fulltone
26% matchFulltone OF-2 Octafuzz stacks fuzzy on top of the mid-forward already here
Pigtronix Octava Micro
Pigtronix
26% matchPigtronix Octava Micro stacks high gain on top of the mid-forward already here
Heavy Metal FX HMFX Phase Riot Factory Second
Heavy Metal Fx
24% matchHeavy Metal FX HMFX Phase Riot Factory Second's modulated voice goes after Electro-Harmonix Flatiron Fuzz in the signal chain — it's not there to compete with Electro-Harmonix Flatiron Fuzz's own fuzzy character
Strymon OB.1 Bass
Strymon
17% matchWhat Strymon OB.1 Bass brings here leans toward clean boost — that's worth building a pairing around
Electro-Harmonix Memory Boy Analog Delay
Electro-Harmonix
14% matchKeep Electro-Harmonix Flatiron Fuzz's fuzzy voice out front: Electro-Harmonix Memory Boy Analog Delay goes after Electro-Harmonix Flatiron Fuzz 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)
Walrus Audio Mako D1 High-Fidelity Stereo Delay V1
Walrus Audio
14% matchPut Walrus Audio Mako D1 High-Fidelity Stereo Delay V1 after Electro-Harmonix Flatiron Fuzz in the signal chain, clear of Electro-Harmonix Flatiron Fuzz's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Keeley Angry 4-in-1 Distortion/Fuzz
Keeley
tonal matchKeeley Angry 4-in-1 Distortion/Fuzz layers clean boost onto an already fuzzy signal
Matthews Effects Architect
Matthews Effects
tonal matchMatthews Effects Architect stacks clean boost on top of the fuzzy already here
Boutique & premium upgrades
Electro-Harmonix Green Russian Big Muff
Electro-Harmonix
74% similarityShared character: big_muff, volume, fuzz
EarthQuaker Devices Hoof Hybrid Fuzz
EarthQuaker Devices
74% similarityShared character: big_muff, bright, volume
JHS Pedals JHS Muffuletta
JHS Pedals
71% similarityShared character: big_muff, volume, fuzz
MXR Distortion+
MXR
71% similarityShared character: extreme_settings, compression, thickness
Keeley Moon
Keeley
71% similarityShared character: big_muff, filter, volume
Fuzzrocious Grey Stache
Fuzzrocious
71% similarityShared character: big_muff, bright, fuzz
Similar charactersee all similar tone character →
Electro-Harmonix Big Muff Pi
Electro-Harmonix
76% similarityShared character: big_muff, bright, grit
ProCo RAT 2
Proco
71% similarity“based on the hard clipping op amp circuit famously associated with early ProCo Rat and op amp Big Muff style tones”
Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD
Dunlop
68% similarityShared character: extreme_settings, filter, compression
JHS Smiley
JHS Pedals
67% similarityShared character: volume, fuzz, distortion
Footloose Effects Red Light
Footloose Effects
96% similaritysimilar tone character
Electro-Harmonix Triangle Big Muff Pi
Electro-Harmonix
95% similaritysimilar tone character
See all alternatives to the Electro-Harmonix Flatiron Fuzz (cheaper + boutique) →
Questions people ask
What are good alternatives to the Electro-Harmonix Flatiron Fuzz?+
The closest matches in character are the Electro-Harmonix Big Muff Pi, the ProCo RAT 2, the Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD. Boutique upgrades: Electro-Harmonix Green Russian Big Muff, EarthQuaker Devices Hoof Hybrid Fuzz, JHS Pedals JHS Muffuletta.
What pairs well with the Electro-Harmonix Flatiron Fuzz?+
Strong matches from rig and tone-complementarity evidence: Friedman Dirty Shirley, Friedman BE-Mini Head, Magnatone SL100 Slash 100 Watt Head Black — Friedman Dirty Shirley layers high gain onto an already mid-forward signal.
How much does the Electro-Harmonix Flatiron Fuzz cost?+
Around $72.57 (live listing price, updated Aug 27, 2026).