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Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
Earn points on eligible purchases with AMS Rewards and turn them into savings on future orders, no credit card required. You can apply points at checkout once they’re available.
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Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
The Electro-Harmonix Big Muff Pi 2 revives a long-lost 1970s circuit from EHX pioneers Mike Matthews and Bob Myer, recently rediscovered by Josh Scott of JHS Pedals. While it shares the iconic Big Muff name, this pedal offers a completely unique fuzz voicing that feels both vintage and refreshingly new. It’s a missing chapter in the Big Muff story, ready to take your tone into unexplored sonic territory.
A Resurrected Circuit with a Unique Voice
Uncovered from a hand-drawn schematic found in Bob Myer’s old notes, this design sat dormant for decades until now. The Big Muff Pi 2 swaps the traditional transistor architecture for a unique Dual Op-Amp design, resulting in a tone that stands apart from every other Muff on your board.
Dual Op-Amp Architecture: Unlike the classic transistor-based Muffs, this pedal relies on two Dual Op-Amps to generate its grit. The result is a sound that feels slightly less refined and more aggressive, offering a distinct alternative to the smooth, creamy sustain of a standard Pi.
A New Spectrum of Fuzz: This isn’t a subtle tweak; it’s a whole new beast. Expect a crispy, biting top end that cuts through the mix, paired with booming, thunderous lows. It offers a dynamic, unpolished clipping texture that feels raw, immediate, and inspiring.
Modern Twists for the Audacious Player
While the circuit is vintage, the functionality is thoroughly modern. The Big Muff Pi 2 is built for players who want to toggle between standard riffing and chaotic bursts of noise without dancing a tap dance on their pedalboard.
Momentary Action: In addition to the standard latching mode, you can hold the footswitch for a momentary burst of fuzz. It’s perfect for punching in a single, feedback-drenched note or a quick, chaotic stab without the usual double-tap dance.
Silent True Bypass: No pops, no clicks, no nonsense. The mechanical relay ensures your signal stays bone-dry and pristine when the effect is off, while the soft-touch switch makes engaging the beast feel smooth as silk.
Classic Sustain and Tone Control: Even with a new engine under the hood, the dashboard remains familiar. Use the Sustain knob to travel from a medium-rare grit to full-blown sonic saturation and twist the Tone knob to sweep from a deep, subterranean rumble to a razor-sharp, treble bite.
Iconic Design in a Board-Friendly Package
The Big Muff Pi 2 brings its 1970s DNA into the present day with a form factor and aesthetic that fits perfectly on a crowded modern pedalboard.
Nano-Sized Chassis: You get massive, wall-shaking tone without sacrificing massive amounts of pedalboard real estate. The compact die-cast housing is rugged, road-ready, and fits easily alongside your other essentials.
Daniel Danger Artwork: The visual vibe is just as cool as the audio. The pedal features custom artwork by EHX aficionado Daniel Danger, giving it a brooding, stylish look that matches its darker, edgier sonic character.
Versatile Power Options: Whether you prefer the sag of a battery or the reliability of a power supply, you’re covered. It includes a 9V battery for plug-and-play action right out of the box, or you can power it with a standard 9.6VDC adapter.
The Lost Chapter, Finally Written
The Electro-Harmonix Big Muff Pi 2 is more than a fuzz pedal — it’s a "what if" scenario come to life. By bridging the gap between Bob Myer’s original 70s concepts and modern pedal standards, it offers a gritty, dynamic, and completely unique voice for the adventurous guitarist. If you think you’ve heard everything a Big Muff can do, think again.
Electro-Harmonix Big Muff Pi 2 Pedal Features:
Authentic recreation of a lost 1970s circuit by Mike Matthews and Bob Myer
Unique Dual Op-Amp design delivers a distinct, aggressive fuzz character
Crispy top end and booming lows for a "less refined" vintage feel
Features Volume, Tone, and Sustain controls for wide-ranging sound sculpting
Selectable Latching or Momentary footswitch action for creative bursts of effects
Silent footswitching with mechanical relay True Bypass
Compact, rugged Nano-sized die-cast chassis
Custom artwork by Daniel Danger
Includes 9V battery; compatible with optional 9.6VDC adapter