People pass out too many 10s. On the most objective analysis possible to something as inherently subjective as sound quality, it seems that most pedals ought to come in around a 5-7. Mathematical statisticians would bear me out on this point - as the number of samples increases, a frequency polygon tends towards the normal curve. THAT SAID, of all the many high gain pedals I've had the pleasure of trying (and there have been some real winners as well as losers), this is without a doubt the best. I have used the NYC Big Muff Pi and the Made-In-Russia black box Big Muff Pi from Electro Harmonix, and while they're probably the be-all, end-all of modern fuzz pedals, I was worried that their characteristically loose and fizzy low end would ruin the prospects of high gain in the Metal Muff. Allow me to allay that fear! The Metal Muff has the tightest, most well-defined sound of any high gain pedal on the market. It competes with pedals costing twice to three times as much in its quality, and is worlds ahead of the likes of the Metal Zone and Metalcore by Boss (although the Keeley modded Metal Zone is a pedal on par with the Metal Muff - for twice the price). The Metal Muff has definition in droves. The EQ section is unique and specific, allowing you to tailor your sound exactly without losing either the character of your guitar or the character of the Metal Muff. The range of gain allows you to go anywhere from a surprisingly usable lower-gain sound (like a pinched, fat blues tone) to a monstrous roar at the upper limits. I find that the best place for my sound is between 12 and 3:00, with an overdrive pedal in front. This pedal responds very well to different overdrive pedals, and I get equally usable but very different results from running a TS808, a Matchless Hot Box, and an MXR Distortion+ in front of the Metal Muff. It is very amp-like in its responsiveness to other pedals feeding it. In fact, I've played on expensive amps that didn't sound this good.

For a pedal to rank a 10 on features, it would have to outcompete all comers and really shine through. This pedal does not do that, but if you understand my unwillingness to artificially inflate this score you should get the point that the Metal Muff is by no means feature-starved. It has the essential complement of features - that is, "Volume," "Distortion," and an EQ section composed of "Bass," "Midrange," and "Treble." In addition to that, it can be run off of either batteries or a standard 9V adapter. My only real complaint about the pedal is that, like some other Electro Harmonix products, you have to have a screw driver to change the batteries. That is an absurd requirement. Now that we've seen the usual features and the one complaint, how about the real magic of this pedal? I'm talking, of course, about the foot-switchable "Top Boost" function, which also has its own adjustment knob. The "Top Boost" is an additional EQ/gain circuit on top of the rest of the pedal's function. It amplifies high frequencies of the guitar's signal (specifically, between 3500hz and 4500hz or thereabouts) depending on how you adjust the Top Boost knob. At Zero, you get no change from the regular pedal sound when you hit the switch, but turn it up and you rapidly get into "instant guitar solo" scream. I use two guitars, a Strat and an Explorer. My Strat has a JB Jr. in the bridge, and the Explorer has a GFS Crunchy Rails. Both of these pickups are hot, full, and bright, and as such I never turn the Top Boost knob above about 10-11. Getting it past 12 makes the sound screechy and unmanageable. For darker pickups, more might be needed. The Top Boost is a feature I wish every high gain pedal had; in fact, it makes the Metal Muff essentially a two-channel pedal, one for rhythm work and one for solos. I just wish that the pedal had a battery compartment so that it would be a quick change instead of a screwdriver ordeal.

Why the lower rating, you ask? Well, it isn't that the pedal is difficult to understand. The manual, if you can call it that, is constituted of a single piece of yellow paper with writing on both sides, but you're not missing anything - it does a fine job explaining what everything does and how to use it. The low rating is because if you don't already pretty much know what tone you're looking for, you're going to have to spend some time working it out. The EQ controls are very mutually influential, and finding a good ratio of Treble to Top Boost is especially tricky because of how sensitively they react to one another. It is possible to get a really good Top Boost setting and then switch it off to find your rhythm tone is muddier than you like; similarly, you might dial in a great rhythm sound that sits perfectly in the mix, and then engage the top boost only to have it screech your ears off. A good rule of thumb is to get your rhythm/usual sound exactly like you want it FIRST, and then, starting at zero, adjust the Top Boost until it suits you. That is the simplest way to get the sound you want. If you find a different method works best for you, of course go with it.

Unlike the Big Muff Pi (Russian or American made) with their very thin - though not flimsy - casing, this pedal's container is made out of nice, thick aluminum. As is usual with Electro Harmonix products, the switches and jacks are very sturdy and should last as long as you have the pedal. The adjustment knobs are metal, and the pots are smooth and sturdy. No quality faults to speak of, and no corners cut.

The price is competitive with other high gain pedals on the market, and the sound quality leaves 'em in the dust. What better measure of value is there than that? I don't want to give too high of a rating here because there are other Metal Muffs with the same fundamental sound for less money, but they lack the feature set of this one (for instance, the Nano Metal Muff only has Volume and Distortion with a three-position switch to adjust midrange scoop - talk about a lack of versatility, and without the Top Boost function I wouldn't even consider it).

I can't give an opinion here because I haven't dealt with them.

This pedal looks good on a pedalboard, even if that isn't a very good reason to buy a pedal. It's not ridiculously huge like the Big Muff Pi, and its appearance is both "vintage" and "modern" - black case, white lettering, with a good blend of styles. It's not going to get you dates, but no other pedal would, either.

Musician

Everything from spacey cleans to roaring metal

Guitar. multiple gigging bands over the years and church services. 14 years exp.

Blues/Rock/Metal

Played live and in bands for years

Metal, rock, industrial, dance pop, whatever I feel inspired to write or play

Playing guitar for 13 years while dabbling in percusion and various string instruments.

alternative, metal, rock

this thing sounds exactly like metallica, black sabbath or nirvana or acdc however you want it

the top boost is awesome to use on the first solo in master of puppets

just turn the knobs. the buttons are kinda hard to press without wearing shoes but it doesnt compromise the quality of the product

made of metal and the knobs are rubbery plasticy

its worth every penny get this pedal

N/A

holy S*** i want it

hobbyist

rock, hard rock, alternative, jazz, punk

Newbie just jamming at home

Blues, rock, metal.

How long is a piece of string?

Thrash Metal, Prog Metal, Hair Metal, Metal on Metal, Blues Metal, Black Metal, Chicken Picken Downtuned Metal&Western Metal, Fo

Recreates a mesa sound, makes the scooped mids, turn the mids up to hear some chunck. I like turning the treble all the way down, then add some boost, with a little mids like around 1030, everything else to taste. I get a great mean distortion with chunky mids. Its not a overdrive pedal, as a matter of fact my amp's volume is almost quiet and if you crank the pedal's volume you can feel it in your chest. Each knob can work against the other knobs for REAL tweaking. I mean like I think I'll start a notebook with dials marked with some discriptions... Volume down with the distortion up, or vice versa strains the pedal into new tones. It can be really bright, I keep the boost and treble way down, and the mids never over 1 o'clock. I found a "tighter" muff sound recently, you can hear the harmonics of the distortion just breaking up like on a big muff where you can hear it break up so loose it sounds like half a speaker, but the metal muff kept it tight as if the speaker on a bass amp was about to let go... I had to record some riffs right away. Sitting and playing with the amp has made me just wanting to sit and find tones. Pretty amazing. It's not going to do anything clean, or overdrive, if you're into that, get a nice AC-30. As a matter of fact I have an AC-30, which I love those creamy horn-like tones, but I couldn't get any metal tones, and I'm not into a mesa boogie, and wasn't ready to lay down a bunch of money for an amp just for metal, although the JSX is sounding great. This pedal saved me from spending a lot of money on a marshall or JSX, just so I could have the versatility of laying metal-ish tracks. I just can't overdrive the Vox to the levels of a trip rectifier, well maybe the same levels, but it doesn't have the same harmonic distortions as the JSX or Mesa, this pedal does. It made me start looking at all the other Electro-Harmonix products, I mean if they can pull this off for 80-ish dollars, what else are they doing. I went ahead and grabbed a Big Muff Pi, both together are less than the Krank pedal, which I wanted to try too.

Tweak heaven. Comes with a battery new, all pedal manufacturers should take a note! I wish it had a save function, I'm afraid I'll find a great tone and forget to find it again.

Not easy to use, it's actually complicated. I don't think this is a fault of the pedal, I consider it a plus. Its just that versatile. If you want to plug in, dial to medium and play, it's not for that. Although you could just memorize.

Solid

Amazingly cheap for such a great product.

I don't like the graphics on it that much. I'm sure it would sound much better if it had a lava lamp on it, or if it were called the Metal Preacher hehe.

recording hobbyist

rock and stuff

playing guitar since 92, little on stage but more at home now.

love metal grunge and classic rock.

the sound is just incredible. i cant believe somethin g for this price sounds so good. it really sounds good with my amp. i have a peavey envoy 110 and the sound quality just blows me away.

the most usefull features are probably just the top boost and bass. i can get almost any sound i want out of this pedal.

this is extremly easy to get great sounds from this pedal.

this is just built great. i bought mine used and it still owns every pedal ive ever had.

this is definatley worth the price it is. this is the cheepest price i have seen for it.

i havent had any problems with this pedal.

this was just an addition to my setup but my friend had one and after using it i just had to get one for myself.

im in a band right now

rock/any kind of metal

The sound quality of this product is great and really expressive for metal and rock playing musicians.I use it with a Marshall mg15 cd and for a death / thrash or heavy metal musician it's marvelous...

-The boost feature of this pedal is made for true heavy metal playing musicians and fans.

It's very easy to get get great metal sounds...

Active Musician

Heavy metal ,rock and jazz

Sound is one of the best i have ever used for distortion, To me Metal is the LAW so i have tried and owned many pedals like the MT2 and digitechs great metal master and death metal pedals. But this bad boy can do what those and the MT2 can do also. I can get the sound from the album "Left hand Path" by Entombed that i have tried to emulate so many times. Only the MT2 comes close to that sound. the Metal Muff Has so many ways to tweak it and get such high gain or heavy downtuned riffing. I am sure it could play any type of music with distortion though. I use this through a line 6 150 and several types of different overdrives like zaks mxr pedal and the green screamer. They all sound great with this pedal. zaks pedal is best though! Unbelievable metal tones from this tank. If your looking for Metal this is one pedal you may make your favorite.

I had to get a power supply. came with everything and battery.

You can get any sound for metal thats for sure! It takes some time to tweak so you may want to kinda play with it a little. It has a lot of features. Manual kinda leaves up to you, Its a Metal pedal ya know!

Made well and like a little aluminum tank. Its been reliable for me for over 2 years. Has little tough rubber knobs.

Much lower than other pedals i have bought.

never dealt with them before.

I happen to like the spiked graphics.

The sound was allright. I would use this for solos, or speed metal, or just playing through your amp. Its got plenty of distortion, and the top boost knob makes it even more fun. The problem is that it cuts through very badly if your using it for production work. The EQ was not enough to fix this, as the mids were set way too high (1000k), and the bass boosted so low that it was boomy. Pre-EQing didnt seem to help me too much, as it still sounded colored. Your best bet is to use this pedal straight to the amp for best sound & playing. I liked the metal sound very much, but I think this needed a tonality boost EQ between 125k-500k, instead of a mid range that was set too high. I was looking for a low & hard distortion with alot of treble rolloff, and this just wasnt it.

This thing has plenty of features for a distortion pedal. Its really nice.

Very easy to use, but takes awhile to get a good sound you like.

extremely good quality build

I think this was an expensive pedal for the uses I needed, and the end result was I didnt get what I wanted, even though it does sound nice by itself.

dont know

Hobbyist

metal, prog rock

This pedal is for metal. Sounds are amazing! The Top Boost is very useful for solos. Excellent!

Everything is okay. The controls are simple. Top Boost, killer sound, everything you need.

Yeah... Very easy of use!

This is a tank!

Good value!

I dont now what about support, because i never used it.

i leraning

metal, rock