Electro-Harmonix Metal Muff with Top Boost
Electro-Harmonix Metal Muff with Top Boost

Metal Muff with Top Boost, Other guitar saturation effect from Electro-Harmonix in the Metal Muff series.

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All user reviews of 3/5 for the Electro-Harmonix Metal Muff with Top Boost

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Average Score:4.4( 4.4/5 based on 45 reviews )
 31 reviews69 %
 6 reviews13 %
 4 reviews9 %
 3 reviews7 %
 1 user review2 %
Value For Money : Excellent
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Everlone's review"Metal-meh"

Electro-Harmonix Metal Muff with Top Boost
The Electro-Harmonix Metal Muff with Top Boost is an analog distortion pedal. The “Top Boost” feature boosts certain frequencies for solos and has its own level control. It can be powered by 9 volt battery or the included power adapter.


The Metal Muff is extremely easy to use. It has six knobs and two buttons. It has a knob for the Top Boost level, gain, lows, mids, highs, and over all volume. One footswitch turns the pedal on and off and the other engages the Top Boost. I briefly glanced over the manual, but the pedal is so self explanatory there is almost no need for it.


I use the Metal Muff with a Gibson Les Paul Custom and a Guild S-300D. In my experience I have found that there are not a wide variety of USABLE tones in this pedal. The equalization knobs tend to have one, possibly two, sweet spots in their range of motion. Any more or any less and the tone becomes too harsh or too stifled. I actually think having the Top Boost engaged with the knob set to about 8 o’clock makes the whole pedal sound better and I will often leave it on all the time. This pedal has massive amounts of gain on hand. I usually keep the gain knob set anywhere from noon to 3 o’clock.


The Metal Muff has a ton of potential, I only wish it had a more user friendly EQ. J.D. Cronise from The Sword uses one for his distorted tone and it works extremely well for him. I would recommend demoing this pedal with the same make and model amp you own before buying. Knowing what I know now I probably would have gone with a different high gain distortion box. For now it will remain the back up distortion pedal in my rig.

mooseherman's review

Electro-Harmonix Metal Muff with Top Boost
The is a very heavy analog distortion pedal. The model I played had a sick feature called top boost. It can't be edited through a computer, and it's not rackable. It's got your basic 1/4" input and output, and has a power adapter.


The sound effects editing is pretty easy. There are six controls on this pedal. (Volume, Top Boost, Treble, Middle, Bass, and Distortion). The distortion knob controls gain, while the Top Boost function contributed to the higher end of your tone, making the aggressive sound of the Metal Muff better for heavier stuff. The manual explains everything pretty clearly, but it would probably only require one good read-through anyway.


This thing is one of the more intense distortion pedals I've ever played. I was curious to see how it would compare to its cousin, the more famous Big Muff. The main thing I noticed was the name was no joke; this is a metal pedal through and through. As such, its appeal is limited. I personally grew out of metal years ago, and I feel as though this pedal doesn't deliver the midrange that I love so much in the Big Muff. I also feel like the regular big muff has all the distortion I want, but also a lot more warmth than the Metal Muff. As such, I wasn't such a huge fan. A metal player who prefers early 90s and late 1980s tones (Dimebag Darrell, Metallica) might really dig this pedal. The top boost feature especially makes it cut through some of the more dense mixes, and gives your leads a piercing tone that really kills it. However, the lack of midrange sort of kills the pedal for me in my book, as it doesn't do any other genre much justice. It's too bland to be used in a rock context, especially since it's got sort of an artificial brightness. Metal isn't my thing, but if it was, I'd probably be using this guy a lot more.


I have to say, I like the sheer power that this pedal has. Sometimes if you're in the mood to create a lurching metal riff, you need just the right pedal, and this is certainly good for that. However, I usually demand more versatility out of my pedals. I don't think that this pedal is particularly versatile at all, in fact, its frustratingly monotonous. I think that for the price, it's not bad. Certainly metal players looking for a really good tone would be well-advised to spend a lot of money on this. However, I don't really think that it's worth it for anyone else. Other players would be well-advised to check out the other Electro Harmonix distortions for more variety, and incredible quality.

guigue106's review (This content has been automatically translated from French)" nikel chrome"

Electro-Harmonix Metal Muff with Top Boost
What basic, input / output analog to hair


30,000 knobs are not so ca goes well, we turn we try we appreciate you keep


test with esp m2 deluxe, not a twist of c * r * chi for the right ca sending effective way


for the quality I would say bravo!

the distortion is clean, clear, sharp, precise and flawless and ca c is pretty good for the mind legato / prog.

the quality and texture of the sound of this pedal strangely reminds me :) can be inflames my m2 deluxe there is sth ....

The headroom on the distortion and really nice and c is not negligible for legato shred fan knob.

j 'have tested distortion (ds1, ds2, mt2, digitech death metal, H & K tubeman II and j' fast) to kick the sound is much less compressed and less muffled than my DM digitech.

ca ca exudes sense of cleanliness. the digitech death metal is a bit fatter, more slobbering and "deaf" but sounds bigger than the EHX.

for once I 'appreciate by far the sharpness of the EHX even if it sounds less heavy, it is clearer, drier, sharper and more accurate view even almost "velvety" to play progressive way "petruccinator"

the only real question was how little serve the damn knob "top boost" j love the doctored to transform the top boost and optimized scoop in the low and the middle muscles.

beyond the ca, ca sending more than well.

johnfr38's review (This content has been automatically translated from French)

Electro-Harmonix Metal Muff with Top Boost
everything is already configured and said


the complicated knob changes the sound very soon! So we'll have a good time to fix it.
on power supply or 9V battery but quickly forget it is loosening the pedal at the back to save battery power and theres almost nothing that prevents the battery slab is hard on the entire circuit if you carry it everywhere I do not care dear his life is sil tjr this battery inside ^ ^


sound quality I would say it's a big sound without being really!
jen at the beginning was very happy but preferred to wait 1year jai has laundry in hand before given my opinion, while some give the process after he has just come davoir the pedal is no interim interest but I digress! : D
So the distortion contrairment a boss mt2 home the metal muff is much more dynamic sound and sound less compressed and has less sustain than the mt2 cepandant after a few months Notes The jme very quickly realized what was less accurate than more mt2 emit a breath horrible slobbering in high gain. this pedal has another worry cest that adjustments should be very specific and to be careful because the slightest slight flick on and the sound changes portard carément and lon must start from scratch. cétait a boost when the initiative but bonen lenclanche beyond the 10H cest ensure its completemnt davoir a different edge and feel like playing alone in the world of a group within!


Dabord delighted at my beginnings disappointed later this pedal didn't replied to my requests I will not go that choice if I had to do I keep them in a distortion pedal as much more precise than this metal muff
if you have a small budget and you eSite between Metalzone, metalcore, death metal I would advise you more Metalzone for rhythmic or metalcore for the lead.
Now those are my tastes but to make you notice anything that nest mieu take your guitar and go to a store esseyer (with disto else)