Electro-Harmonix Big Muff Pi 2 Dual Op-Amp Fuzz Pedal

Electro-Harmonix Big Muff Pi 2 Op-Amp Fuzz Pedal

The Lost Slice of Pi Rediscovered!

Electro-Harmonix Founder and President, Mike Matthews and serial inventor Bob Myer go way back. Together, they designed the very first Big Muff and had a working relationship throughout EHX’s storied history. Always innovating, Bob was known to present Mike with updated designs to keep up with available technology of the times. As the process goes, designs get selected and others get put aside and forgotten about. The Big Muff Pi 2 Dual Op-Amp design is one that didn’t make the cut back in the late 70’s and was promptly stashed away in Bob’s files. While interviewing Bob in his old workshop, EHX disciples Josh Scott (of JHS Pedals) and Daniel Danger uncovered this novel circuit design as a hand drawn schematic amongst Bob’s old notes. Josh went to work decoding the original schematic and resurrected the circuit as the Big Muff Pi 2.

The Big Muff Pi 2 is similar to the classic Big Muff Pi but has a unique fuzz tone to further fill out your Muff flavor palate. With singing sustain and gobs of gain, the BMP2 remains true to the Big Muff Pi legacy with its own edge and response. A crispy top end, booming lows, and slightly less refined clipping gives the Big Muff Pi 2 a particularly cool feel that’s both unique and distinctly Big Muff. Slightly more dynamic, slightly more fuzzy, the Big Muff 2 is must-try for any BMP lover!

Featuring the familiar control set of Volume, Tone, and Sustain, the Big Muff Pi 2 comes in a nano sized die-cast chassis with art designed by EHX aficionado, Daniel Danger. SUSTAIN controls the amount of sustain and distortion from medium grit to full fuzz fury. TONE adjusts the tone from brash rasp to deep thunder, increasing treble and decreasing bass as it’s turned up. VOL sets the overall output of the pedal.

The Big Muff Pi 2 features a first for a Big Muff, silent true bypass footswitching with Latching/Momentary Action. Click the footswitch for normal latching functionality or press and hold the footswitch of a momentary burst of fuzz mayhem!

Features

• Unique Big Muff Pi circuit design employing 2 Dual Op-Amps
  
• Artwork by Daniel Danger
  
• VOL, TONE, and SUSTAIN controls
  
• True Bypass
  
• Latching/Momentary footswitch action
  
• 9V Battery included, adapter optional

SPECIFICATIONS

Circuit:  Analog
Audio:  Mono
Power Supply:  9V battery included (optional 9.6VDC-200mA power adapter not included)
Dimensions (in):  4.5 x 2.75 x 2.1
Current Draw:  15mA
Year Released:  2025
 

Shipping Policy

Flipside Music ships items within 2 business days of purchase. If an order is placed after 5pm, the next day would be considered the first business day.  We do not ship on the weekend. Fedex or USPS will be used to ship your purchase, if you have a preference for another shipping provider, please contact Ike or Dylan and we will work with you and the company you choose. Items ordered after 12pm on Fridays MST will be shipped out on the following Monday (shipping services don't pickup on weekends). 

Purchase confirmation emails will be sent after transaction is complete. Sometime these email can end up in a spam folder, depending on email provider and any applied filters. So check there if you don't see a confirmation email within 15 minutes. 

Flipside Music does ship used gear Internationally. Please contact us if you have questions regarding a specific item. we can provide a shipping estimate. International orders may be subject to destination countries sales, VAT or import tax. Please contact your countries duty center, prior to purchase for more information regarding these fees. Flipside music will not reduce listed price to avoid said duties.

Most new items will not ship internationally, this includes Yamaha, Fender, Charvel, Gretsch, Strymon, ect. 

If you have any questions regarding shipping please call the shop at 720-519-1996 or email us at info@flipside-music.com

Return Policy

New Items:

We honor a 14 day return window on all new items.

If you feel the need to return an item, it must be in the sellable condition, no paint chips, scratches or broken parts. Sellable Condition means that the product(s) is in exactly the same condition as it was when you received it. The item must have all the original packaging, included accessories owner’s manuals and blank warranty card, no sign of wear or abuse.

Used and Vintage Gear:

We honor a 3 day return window on all used and vintage items.

All our used gear is tested for functionality prior to being available for purchase and therefore only carries a 3 day approval period. If you would like to make a return just let us know within the 3 day window.

Damaged or Defective Items:

We visually inspect all items before shipment. If you believe you have received a damaged or defective product, please contact us immediately so we can work through the issue. Guitars, basses, and other equipment returned to us with pick marks, "buckle-rash", or any other damage or evidence of use may be subject to a 20% restocking fee, repair charge or disqualification of return. All items must be returned to us in the same condition they were when shipped to qualify. We reserve the right to refuse any return if we determine the item has been misused, modified or damaged by the purchaser. If the item turns out not to be defective upon inspection, we will have to deduct the cost of shipping from your return credit.

Shipping Charges incurred through the return of an item:

You will be responsible for the shipping charge for the return of your item, and if your item qualifies for Free shipping on its way to you, this shipping charge will also be deducted from your refund. If your item is determined to be defective, we will pay the shipping charge, equivalent to ground service.