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Electro-Harmonix Big Muff Pi Hardware Plug-in Effects Pedal & USB Interface

This unprecedented take on the Big Muff is the perfect tool for adding a little — or a lot of — analog grit to digital workflows! The pedal is a true-stereo 2-in/2-out stompbox based on the classic 1973 Violet Ram’s Head Big Muff. On its own, you can use it onstage or at home as a standard pedal, but plug it into your computer and you can seamlessly send tracks through analog fuzz circuitry then into a DAW, essentially giving you an analog plug-in that integrates easily with your favorite software. Finally, the Big Muff Pi Hardware Plug-in even functions as its own audio interface with USB functionality, direct monitoring, a headphone jack, and gain control with no other device needed for recording. Check it out!

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About Mitch Gallagher

Sweetwater Editorial Director, Mitch Gallagher, is one of the leading music/pro audio/audio recording authorities in the world. The former senior technical editor of Keyboard magazine and former editor-in-chief of EQ magazine, Gallagher has published thousands of articles, is the author of seven books and one instructional DVD, and appears in well over 500 videos on YouTube. He teaches audio recording and music business at Purdue University/Indiana University, and has appeared at festivals, conventions, and conferences around the world.
Read more articles by Mitch »

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

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