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

Big Muff Pi 2 - The Lost Slice of Pi Rediscovered!

The Big Muff Pi 2 is a modern revival of an alternate Big Muff fuzz circuit originally developed in the late 1970s and rediscovered by effects designers. It delivers the signature gutsy sustain and rich saturation that players love, but with a distinctive character thanks to a dual op-amp architecture that offers a unique tonal edge — deeper low-end presence, pronounced midrange and crisp top-end response that sets it apart from standard versions of this legendary fuzz family.

Intuitive three-knob interface with expressive dynamics.

Featuring the familiar Volume, Tone and Sustain controls, the Big Muff Pi 2 lets you dial in everything from gritty breakup and thick rhythm fuzz to singing sustain and lead-ready saturation. Its compact nano chassis is pedalboard friendly, and the updated footswitch allows both traditional latching and momentary activation for creative fuzz bursts or performance cues.

True bypass and versatile power options for pedalboard use.

True bypass ensures your clean signal remains intact when the effect is disengaged, and the pedal can be powered by a standard 9 V battery (included) or an optional 9 V DC power supply (sold separately), making it flexible for rehearsal, live or studio rigs.

KEY FEATURES: 

• Dual Op-Amp Circuit: A rediscovered, alternate Big Muff design that delivers a unique fuzz texture distinct from standard Big Muff pedals
• Three-Knob Control Set: Volume (output level), Tone (frequency shaping) and Sustain (fuzz/gain amount) — intuitive and classic
• True Bypass Switching: Keeps your dry signal clean and unaffected when the pedal is bypassed
• Nano Size Chassis: Compact form factor ideal for modern pedalboards without sacrificing ruggedness
• Flexible Footswitch Modes: Standard latching on/off or press-and-hold momentary operation for expressive control
• Power Options: Powered by included 9 V battery or optional 9 V DC adapter (center-negative).

SPECIFICATIONS:

• Effect Type: Analog fuzz distortion
• Circuit Design: Dual op-amp vintage fuzz architecture
• Controls: Volume, Tone, Sustain
• Switching: True bypass (latching and momentary modes)
• Inputs: ¼″ instrument input (mono)
• Outputs: ¼″ instrument output (mono)
• Power Requirements: 9 V DC (center negative) or 9 V battery (included)
• Current Draw: Approximately 15 mA
• Dimensions (WDH - approx): 70 x 115 × 53 mm
• Intended Use: Electric guitar, fuzz and sustain effects for rock/alt/experimental tones
• Warranty: 1 Year

• Effect Type: Analog fuzz distortion
• Circuit Design: Dual op-amp vintage fuzz architecture
• Controls: Volume, Tone, Sustain
• Switching: True bypass (latching and momentary modes)
• Inputs: ¼″ instrument input (mono)
• Outputs: ¼″ instrument output (mono)
• Power Requirements: 9 V DC (center negative) or 9 V battery (included)
• Current Draw: Approximately 15 mA
• Dimensions (WDH - approx): 70 x 115 × 53 mm
• Intended Use: Electric guitar, fuzz and sustain effects for rock/alt/experimental tones
• Warranty: 1 Year

Digital Downloads (buying software)

All software marked as "serial download" or "digital download" will be delivered via email within normal office hours.

Simply add the software to the basket and at the delivery stage in the checkout please select "Digital Download - Software by email" as your delivery method

Delivery Charges (Main Products)

The cutoff for same-day dispatch is 3:30pm but can vary at busier times such as Christmas.

All orders over £99.00 will be delivered free via our standard delivery 2-3 days (UK Mainland)

If you need your item faster we also offer a Priority Tracked service at £3.99 (1-2 days) or Next Day Tracked £6.99

(please ensure you add a mobile number to your order for tracking)

Saturday delivery is available when ordered before 2pm (Mon-Fri)

All orders below £99.00 will start as low as £2.99 depending upon weight and qty(s) (UK Mainland) 

All Delivery options will be available at the delivery stage in the checkout

EU Delivery Times

Non UK Mainland Addresses please allow 1-3 Days
Delivery To Belgium / France / Germany please allow 3-4 Days
Music PC Systems - Please allow 5-7 Working Days build time (UK) 7-14 (Rest of the World)

French - Pour la Livraison s'il vous plaît permet en France 2-4 Jours
German - Für Lieferung Nach Deutschland erlaubt bitte 2-4 Tage

Delivery Notes
On delivery, you must inspect the goods carefully for damage as Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.

Returns Policy

We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.

2. Contact our Customer Services Team on 02476 369898 (or e-mail cs@inta-audio.com). We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).

3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.

4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.


Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.

Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:

1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.

2. If you have not requested a return within 28 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.

3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.

4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.

5. Delivery charges will not be refunded unless the delivered goods are faulty.

6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Inta Audio.

7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369898 if you believe your item has developed a fault.

Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Inta Audio to process the return quickly.

If you have any questions about our Returns policy please telephone us on 02476 369898 or email us at cs@inta-audio.com.