Electro-Harmonix |SKU: EHX-DLXBM

Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal

Regular price $150.60

Product highlights

  • Delivers all classic sounds of original NYC Big Muff Pi
  • Foot-switchable Mids Section helps cut through when recording
  • Mids section features four controls
  • Noise gate with adjustable gate control eliminates noise 
  • Adjustable attack control adds punch to single notes
  • Switchable Bass Boost for added bottom
  • Expression Pedal input lets you sweep the mids in real time
  • True bypass for maximum signal path integrity

In the box

  • Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal with Volume Knob and Bass Boost or Normal Switch
  • 9V Battery
  • Limited 1-Year Warranty

Free standard shipping

*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

Free Local Pickup

Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Questions? We’re Here to Help

Call or email one of our experts.

Legendary fuzz with added features like a Bass Boost, Noise Gate, and adjustable Mids section for the most versatile Muff ever. Long revered for its sweet singing tone and violin-like sustain, the classic three-knob Electro-Harmonix Deluxe Big Muff Pi Fuzz Pedal has helped define the sound of rock guitar for over 50 years. Now, the team has added some extras for those who crave more sound shaping control. The EHX Deluxe Big Muff Pi delivers all the classic sounds of the original NYC Big Muff Pi, plus more. Added footswitchable Mids sections boosts or cuts an adjustable mids frequency for added definition or massive scooped tones. Add an optional expression pedal and turn the Deluxe Big Muff into an extreme fuzzed out wah. The Attack control preserves pick attack with an enhanced version of your dry signal while the Bass Boost adds rumble at higher tone settings. The Gate removes unwanted hiss for a more dynamic performance. This is the most versatile Big Muff ever. Switchable Bass Boost for added bottom when you want it. True bypass for maximum signal path integrity. Mids section features four controls so you can fine tune your midrange boost or cut with 9V battery included.

Volume Knob

Works as master volume control for the entire pedal.

Tone Knob

Provides a range of sounds from high treble to deep bass.

Sustain Knob

As in the original Big Muff Pi, adjusts the amount of sustain and distortion.

Attack Knob

Volume control for the Attack effect.

Gate Knob

Turning gate clockwise raises the gate threshold requiring greater input amplitude to open the noise gate, allowing your notes to be heard and your instrument to pass through.

MIDS Level Knob

When MIDS is engaged, the MIDS level knob either boosts or cuts up to plus or minus 10dB, at the frequency set by the frequency knob.

Bass Boost or Normal Switch

When set to normal, the Big Muff circuit is identical to the NYC Big Muff. Flip the switch up to BASS BOOST and the volume level of bass frequencies through the Big Muff circuit increases.

Mid Q Switch (High or Low)

The Q switch sets the resonance or bandwidth of the Mids EQ.

Mid Frequency Knob

Sets the center frequency of the MIDS EQ circuit ranging from 310Hz to 5.0 kHz.

Shipping & Returns

  • Same Day Shipping


    All orders placed by 1PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

  • Free Standard Shipping


    We offer free standard shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).



  • Easy returns


    If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.


Frequently Asked Questions

How do I return an item?

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.

Will I receive a full refund when I return an item?

You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.

How many days do I have to make a return?

You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 

My item was damaged in transit. How do I place a return?

If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 

There’s an issue with my order, what should I do?

Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.

Can I exchange an item?

We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.

If I ordered a kit, do I have to return all the items?

If you ordered a kit, you must return all components and accessories to receive a full refund.

I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?

If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.

Do you offer repairs?

We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.

What is your return policy?

Most items can be returned within 30 days for a full refund. Click here to read our full return policy.