English Muff’n Tube Distortion/Preamp

British invasion! Taking its roots from legendary British guitar amps, the English Muff'n recreates their majesty and classic tone with spot-on accuracy. Rather than approximating these amps like "emulator" products, the English Muff'n employs vacuum tubes to produce the richness and natural saturation of Brit-valve sounds. A bloody masterpiece!

"Its clean tones are nothing but inspiring. Delivers tea-riffic Brit-tones that turn your amp into a British classic." -- Art Thompson, Guitar Player


Featured Videos
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From the Blog
Posted 9/30/2013


Serg Gorizonts shows off the searing tone of the English Muff’n


This pedal was conceived of and designed by EHX from globally sourced components. Every EHX pedal goes through a stringent testing process by musicians and technicians in NYC before packing.

From the Blog
Posted 4/12/2012



Sylvain Gambini (and the mysterious hand) demo the English Muff’n Tube Distortion/Preamp.

English Muff'n

From the Blog
Posted 11/10/2011



Pop punk riffing with an EHX English Muff’n.The English Muff’n uses two 12AY7EH vacuum tubes to produce the rich, Brit valve sound.

From the Blog
Posted 10/28/2009

Ultra creative, Chicago studio musician, Bill Ruppert, releases the Goblins and Witches as he delivers Effectology 9: HALLOWEEN. Terrifying effect pedals. All effects were created using only Electro-Harmonix gear. Bill provides detailed graphics on how each tone was created.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

These pedals were conceived of and designed by EHX from globally sourced components. Every EHX pedal goes through a stringent testing process by musicians and technicians in NYC before packing.

From the Blog
Posted 9/21/2009

Yet another great Effectology episode by the great Bill Ruppert.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

From the Blog
Posted 4/10/2009
Be sure to catch John Frusciante's comments on the English Muff'n in the April 2009 issue of Vintage Guitar Magazine: "The Electro-Harmonix English Muff'n tube fuzz has some really extreme EQ and a big, thick and meaty sound. I used it on the solo for 'Enough Of Me.' I turn the EQ up, but leave my guitar tone knobs down and use either the middle or neck pickup so the original source sound is really dark and plain. If you blast the tone controls on the effect, you get a really thick, beautiful sound that reminds me of an exaggerated Eric Clapton tone in cream, where you have this really smooth fuzz."

In addition to the English Muff'n, John has also toured and recorded with the Micro Synthesizer, Big Muff Pi (both USA and Russian), POG, Metal Muff, HOG, Holy Grail, and Deluxe Electric Mistress. That said, I'm sure you fru-heads are still going to email and tell me what I left out.

Submissions to EHX.com
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Quick Specs
True bypass using a mechanical relay
Dual vacuum tube preamp dedicated to a true tube overdrive
Supplied with two Electro-Harmonix 12AY7 tubes
Substitute Electro-Harmonix 12AX7 for more gain/distortion
Substitute Electro-Harmonix 12AU7 for less gain/distortion
Experiment with different tube combinations for entirely new tube drive sounds
Does wonders for any amp
Award winning pedal that really gives you the English tube amp sound
12AC-1000 power supply included
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