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.

  • Increase or decrease font size
  • Print
  • RSS

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

  • Like
  • Tweet
  • Submit
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
View price information
Audiofanzine FR03/08/2009

Audiofanzine FR's review

Electro-Harmonix Metal Muff with Top Boost
(Originally written by dimebag hammett/translated from Audiofanzine FR)
Analog distortion, no tube inside.

9-volt operation.

Made in the USA.

Very sturdy housing.


Ultra-easy configuration, no need for a user's manual:

- Volume control

- Three-band EQ (treble, mid, bass)

- Distortion control

Convenient Booster function.


The most important thing is that the sound is HUGE.

You can see what kind of music this pedal was made for just by looking at it, and its sound will only confirm that! Typical fat heavy metal distortion. If you turn up the Mid and Treble controls you'll get a typical 80's thrash metal sound and you'll feel the need to play "Seek and Destroy". I like a very hollow sound with loud lows and highs and almost no mids. The sound is very fat and palm mutes sound amazing (I play a Jackson DK2L with Seymour Duncan pickups).

The boost function increases the volume. Even though it changes the sound color it's perfect for solos. Don't turn the knobs all the way because the sound becomes awful.

I give it a 9/10 because of the boost function, which increases the volume a bit too much. Otherwise the pedal is perfect. I also thought about buying the Dime Distortion... If you are in the same situation, think about it before spending a fortune to get the distortion of our late master.


I've been using it for several months. I have a 40-watt solid-state Peavey Transtube Envoy 110 and I tested it also with a Laney HCM15R. This pedal provides really good results with every amp! I previously played a Lag Jet 100ML and now i have a Jackson with a mind blowing sound. Cons: the boost function, use it with care. The typical heavy metal look is a matter of taste... I personally like it :D.

Excellent value for money (I bought just when ts priced dropped so I got the Metal Muff at the price of a Little^^).

Based on my experience I would buy it again, even if the Dime Distortion is still one of the best distortion pedals for me. But this MM is a very good choice and I don't regret at all having bought it!!
Audiofanzine FR12/13/2008

Audiofanzine FR's review

Electro-Harmonix Metal Muff with Top Boost
(Originally written by valvamp/translated from Audiofanzine FR)
Analog distortion pedal without tube but with boost.

6 controls:


Top boost (level and high-frequency booster)





Dual footswitch:

Distortion bypass

Top Boost

Powered with a 9-volt PSU Made in the USA (New York), ultra rugged steel housing.


Very simple configuration, plug and play! All controls are very effective. I recommend you to avoid extreme boost settings otherwise you'll get a shrilling sound. I personally adjust the mid frequency range and the sound is perfect for palm mute playing. For high-energy rhythm parts, simply increase the distortion intensity on your amp. If you turn the distortion control more than halfway you'll get a pretty heavy distortion. The Metal Muff is faithful to its name: it cannot provide good crunch sounds but it does provide everything from 80's glam rock to grunge, to thrash and black metal. The distortion has a typical US character so Vox and Marshall fans should look for something else!!

The user's manual is not very useful since it only explains control functions. But you won't need more information.


Good quality distortion pedal. It's a nice analog unit that'll rock your socks off. The boost function is perfect for soloing but watch out for extremely high settings or you'll get really nasty highs!

This pedal gives you a nice metal sound both with EMG and Fender pickups.

For the same price as similar products from Boss and others you get a two-in-one pedal and a much better manufacturing quality!


I bought it a few hours ago after testing BOSS, Rocktron and Digitech products. The boost function and the American manufacturing are clear advantages, the 3-band EQ gives you much more versatility than a single tone knob, and the overall quality is good.

I wouldn't hesitate to buy it again!

goldorock's review (This content has been automatically translated from French)" very good pedal"

Electro-Harmonix Metal Muff with Top Boost
analog is
is a: volume
top boost

button = boost as a second channel


or low mids or high-mids


The sound is warmer and the digital line 6 uber metal boss metal zone and ('fit-in well though too!)
the sound is 100% metal, cold, but it rings true compared to the pedals mentioned
its very good
is a top boost = more treble it adds another type of sound more fit-in


this pedal is great but I would have liked an even more devastating
otherwise, go to the side of the Fullbore metal, more direct, modern, cold
well rhythmic pantera
there really is no better otherwise have to go see the pedals lamps (the biggest and best solo)
vox bulldog has a more modern sound as

Anonymous 's review (This content has been automatically translated from French)" great pedal"

Electro-Harmonix Metal Muff with Top Boost
it is a distortion pedal to the metal as the name says
effect non-editable analog technology without lamp
enter and exit guitar


all this pedal is easy


are is super
I use a gibson sg change norton DiMarzio Tone Zone and the one amp Peavy valvaking 212
I love everything about this pedal


I use it for 4 months
I tried a lot of each pedal to
it is a charming taste of depand
I joined a axèpte not notice it all the material Ibride transistor
I would do with pleasure is choice
Captain Danny05/11/2012

Captain Danny's review (This content has been automatically translated from French)" Quality / price staggering!"

Electro-Harmonix Metal Muff with Top Boost
Analog distortion pedal with separate top boost. True Bypass.

Sounds non-editable, non-rackable.

An input jack, an output, an input power supply 9V ... The base.

In bad: for me the top boost is probably superfluous to need to increase the size of the pedal, and for opening the beast, the space is not really optimized in that ... In short, I think it was a pedal that could have been more compact.


The general configuration is very simple with an overall volume knob, a distortion level control, three-band EQ (bass, midrange and treble) and a control top Boost.

The manual is light, as always with EHX, but as always with their products, no need to cut down 36,000 trees so that the user arrives to take them in hand.

Find its sound is very easy.


Then I heard that it did not sound with active electronics, personal but I did not care because I'm on liabilities (two EMG Hz Hz S3 and H4) and it sounds just monstrous ! The sound is excellent, it has teeth, it sounds organic and not at all fake, all-tube combo on one kind or even Vox AC15CC1 Bugera V22 and V5 is just the foot. It is rare to find such a warm sound with a high gain distortion.

The downside for the top boost which is really too loud and will never be worth a real boost to pedal settings ... Past 10 am on the knob of couse you saignerez ears and may kill all the dogs in the area ... An option to use highly questionable.


I use it for some months now and I tried before the Boss HM-2, DS-1, MT-2, a Blackstar DISTX, tc a Rottweiler, the MXR Distortion III and Fullbore and an EHX Metal Pocket MetalMuff, c is also a vamp that got me it drove me to acquire the big sister.

I love his sound and his three band EQ (the sharp knobs of Mediums!), I hate its size and top boost.

Bought new for less than 70 euros, find him a concurrent level sound quality at this price, I laugh! Brief report quality / price ratio.

I would do this hundreds of times choice if you must!

James_H's review (This content has been automatically translated from French)" Effective and affordable!"

Electro-Harmonix Metal Muff with Top Boost
- Distortion pedals sound and nice level look plutt
- Effects not ditables / backups
- Format rack non PDAL
- Analogue, no lamp nor modlisation
- Connector standard in / out jack format and 9v power jack


Black box mtallique srigraphi 6 knobs (black plastic on rcents MODELS, mtal chrom on others):
- Volume
- Top Boost (RULES boost the level of the top frquences mdiums and volume via the footswitch of the same name)
- Treble
- Mid
- Bass
- Dist
- 2 red LEDs startup / activation of the boost

Not enough to catch a mningite, easy rgler but any changes radically changes the sound (I'll come back ...).

I do not have the manual, she lends a collgue does not really need except for a newbie.


"A Quality Sound" aaaaahhhh, Chapter prfr players ^ ^

THE FIRST thing that comes to mind is that this is trs PDAL sensitive gear with which it is used. Let me explain.

Prior to my Digitech RP350 multi effect, rendering has changed beyond recognition under the modlisation amp / speaker uses, sometimes good, sometimes horrible, but hey it's numrique is not prvu for the base.
T was the best compromise a Fender 65 Deluxe 212 simu its trs clear is grainy, quite alive and prcis, good records Heavy / Thrash / Death.

Plugs into a Marshall Valvestate 80w (hybrid) and an Ibanez RG (microphones original V7-S1-V8), I got sounds trs "cardboard pte ', whatever the rglages, fault the amp or pickups? Rponse lowest
The following is a BPS JCM800 Lead Sries and a Gibson Les Paul Studio with EMG 85/81 (I know ...) that have taken over, it's much better, but the sound still a little too loud, dry, lack of scratch my face prsence. My sidekick just playing on ENGL Screamer combo and Gibson Flying V has more 496R/500T prsence, potato. Doubtful of my sound, it plugs into the pedals and the JCM and is the slap: sound crazy, hard-hitting bass that take place, treble prcis and music, excellent dynamic!
That said, this distortion does not like active pickups, my EMG in any case, it is priori trsdpendante microphones, so I DCID board on the kit Gibson cit above (yannsolo_2005, you have the rponse your question ^ ^), like the RG towards DiMarzio or Knuckle Bar, see J'enlve .. 2 points due to a (I know it ' is hard).

The Top Boost can give more prsence and treble passages trs well for lead, provided not push the knob too far (again adpendra your rig). Del at half becomes a carrment screaming, my ears are still mourning.

Like I said above, the knobs are extremely sensitive, a change rglage with hair and will radically change your sound, allowing to find a multitude of musical colors or REFERENCE. This is both positive and rev a bit long if you are searching a specific sound, which is fiddling, but eventually it!
The gain level is consquent: quarter was a big distortion trs rock / hard FM 80 (and go up the mdiums acute in 2 / 3, to remember some groups ...) half we enter the big hairy good thrash. Del at the 2 / 3 low s'craser start, the sound becomes more rough, usable in some records (hardcore?), But it's not in my area. All this sounds plutt Rican, at least with the stuff above cit.
Otherwise, the PDAL has a reserve of sacr volume, the knob MOITI is more than enough, it was in the belly!


I use it for three weeks, it's a prt.
I had prcdemment or test:
- Boss DS-1 (yuck)
- Line6 ber Mtal (slightly cold)
- Maxon ROD 880 Real Overdrive (too hairy for me, but good trs)
- Bixonic Expandora (weird)
- Blackstar HT Dual (not quite hairy too)
- Blackstar HT DistX (a breath and treble are planes)
- Boss MT-2 Mtal Zone/ML-2 Mtalcore (not bad)

All of these pedals is the Mtal Muff convinced me most, I shall try Nos'Box before I DCID to one or the other, but not s r dernire that plays in the same CATEGORY ...

The report is in nine qualitprix trs good, excellent in time.

The only black spot is the apparent sensitivity to the microphone and amplifier utiliss. It will not suit everyone, therefore, despite its qualities empty, you must test it with his stuff before.
This is only my opinion of course and is a reflection of my exprience, only your ears can you DCID!

Thank you for your attention, please dye it out.

Samu15's review (This content has been automatically translated from French)" Big sound for cheap"

Electro-Harmonix Metal Muff with Top Boost
An inlet, an outlet, a plug-type power supply 9V Boss, nothing fancy side connections.
Question setting is complete without being complex gain, three band EQ (a plus in this price range), Top Boost (more on that later) and volume.
Two switches, one for by-pass effect, the second to operate the Top Boost.
The case is tough, but a tad bulky for small pedalboard.
Considering the price (about 80 € in nine, 50 € used), I see nothing wrong with that.


Nothing really complicated, and the settings are intuitive (very) effective.


Even with a low value of gain, the distortion of the grain is already present. Do not look for light overdrive, there is already typed on sound metal. The sound is quite compressed, but retains the dynamic. As some make the comparison with MT-2 Boss, personally I found the grain of the Electro Harmonix less showy and more modern. But it is a matter of taste.

As stated above, the equalization is very effective and can compensate for any deficiencies of the guitar (personally, although it helps to thicken the sound of my Telecaster), or sculpt a sound very hollow or very present in the midrange.

The Top Boost Snap foot is quite practical: It adds treble and lets out a little more time to mix a solo for example, without adding to the volume. The bad thing: The volume pot is in my opinion be exploited to shift its course, beyond it quickly becomes a swarm of bees.


I was looking for a pedal with a grain more modern and heavier than the saturation instead typed my vintage amp. I found my happiness. Certainly, it will never compare with All Tube preamp with a Mesa, but in its price range it does very good job.
In short, no regrets.

- The kernel (but it works well or it does not please)
- The Top Boost switch
- Equalization very effective
- The price
- The reassuring aspect of the case well beefy

The -
- The stroke of the Top Boost not fully exploited
- The size (but relative)

zep59's review (This content has been automatically translated from French)

Electro-Harmonix Metal Muff with Top Boost
- Very easy to use
- Easy to get the sounds - you turn the knobs and the sound changes at all to any


- This is THE strong point of the pedal, the sound is simply énormissime! and I weigh my words.
I'm a beginner on guitar and I tried to approach the sound of Metallica (Kill era in all, ride, master) or Slayer (Angel of Death) but also the style of metal Pantera, Head mahcine or Zuul FX, well this pedal lets me get a few settings not very complex. Vriament if you want a distortion pedal to the metal, TAKE THAT !!!!!!!! CI


Here I made the turn!

Digitalboy01's review (This content has been automatically translated from French)

Electro-Harmonix Metal Muff with Top Boost
T say all adj.


Configuration gnrale Is it easy?

Yes, super simple!

The edition of sound effects or is it easy?


The manual is clear and sufficient? ...

Heuu, there was a manual?


I play on a Randall RH 200 SC (+ baffle Randall) and a Jackson RR3 <img class="smiley" src="https://fr.audiofanzine.com/images/audiofanzine/interface/smileys/icon_lol.gif" alt="" />

I have to say ... The sound is standard. As my head mainly for playing Rock / Hardrock, the pedals is perfect for the mtal (large / fat or a fruit). The harmonization 'are prcises ptent and ears (but happiness ^ ^), the sound gnral is super good.

I acht because I wanted the jou In Flames / Slipknot with good distortion, well ... It is perfect for these types the


Its been two days that I use and I must say that I'm really happy!

It's perfect for what I play (In Flames, Korn, Slipknot, KSE ,...).

I tried the MT-2 and MD-2 Boss from home, and I must say that sometimes the ankle of the Metal Muff!

Goodies: Resistors of the pedals, the sound, the simplicity sound, Polivalente, hummmm ... and sound <img class="smiley" src="https://fr.audiofanzine.com/images/audiofanzine/interface/smileys/icon_wink.gif" alt="" />
Monk: autonomy.

I got excellent report qualitprix (80euros on the internet)!
Dani Leuwen06/23/2009

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

Electro-Harmonix Metal Muff with Top Boost
Voil a distortion pedal that will make noise! Electro-Harmonix is ​​strong (like their usual) with this Metal Muff.

So this is an analog distortion pedal very complte transistors possdent knobs (very sensitive) issue, Boost, Aquamarine, Medium, Low and Gain. It is equipped with a between guitar and an output (obviously) and possde two switch: one to engage or bypass the pedal, and a second to enable or disable the boost.

It feeds with a power supply, standard so no problem to the ct.
It comes with a very simple and clear manual. No need to procrastinate, it's srieux!


Level use, it is very simple to use. Simply snap the pedal for it sounds. You can really change the sound as easily given that the knobs are trsractifs.
No need to hold forth for hours, it's very easy to use.


Then we arrive at the important point, namely the SON!

This is a distortion pedal before Mtal destiny. And this style, it does very well. The gain only feature is impressive and progressive and I think it is not necessary to fit either a gain for very big sound.
Important to emphasize the pedal breath very very little, and is an excellent point!
First, the pedal without the boost:

-It Sounds very in Metallica And Justice For All. It is a little spirit of the Mesa Boogie Rectifier (not mind the sound). This is - ie a trspchu prcis and sound with a grain trs typ.

-The Middle and Bass knobs Trebble really work so well that it suffices to move up a notch to hear a difference.
With little gain and climbing the medium, one starts in a fairly trashy metal sound 80 (even if for this style, the Boss HM-2 better fulfill its role my taste).

-In The medium amount background, it gives one of his radio grandmother.
In short you'll understand that this knob is the magic button on the pedal that lets you change the sound texture very effectively. Below one quarter of the race of the knob (of medium always), the sound is very dull, just mount it to restore spaciousness to the sound.
Acute and Lower are used to boost the sound a bit.

-Personnellement, I always use it with the following rglages: Volume 5, Trebble 5 Medium 5 Low 5 Gain 5-7.
By activating the boost:

-The Boost is the small spot of the pedal. The knob is interesting that in the first quarter of ca race after deviant sound too loud.

-When The knob is little prs quarter, the sound of the distortion is not without recalling the sound of Seek And Destroy or the old sound of Metallica.
For rsumer This gives a distortion pedal Mtal very versatile which can range from modern metal sound of the early Metallica or Slayer (in mind this is not the exact same sound) .dropoff window
To me, this distortion be more rhythmic than solo. It does not sound quite dry and smooth solo.

This pedal also makes good in a transistor amp in a tube amp. But little more is if the branch on a bit of a crunch channel tube amp, it gives her a very very big. It is not at all the kind of sound I love, but it sure will please.

I also do my Zorro against those prtendent that this distortion is that for home under the pretext that it does not include group ... This is wrong, I use this pedal in to live covers of Metal when I envi not to burden me an amp. It pierces the mix very well provided you do not put extreme rglages. It does not lack dynamics.

Nevertheless we must recognize it a default. Released Metal styles or blues, this Mtal muff is not really made (IMHO) for rock and other styles.

For Metal, it deserves much new, but the level versatility, it deserves 6. So I would put 8 because we know what to expect when buying a pedal called METAL MUFF.


In conclusion, the Electro-Harmonix Metal Muff sign is a very good pedal that will satisfy most metalheads seeking its typ.

For my part, I use this pedal for 2 years as both live at home.

-What I prefer this pedal is its simplicity and the warm sound organic, and very attractive price.

-The Default that can repprocher him is his lack of versatility in music styles and the boost that is effective in the first quarter.

I tried many before distortion offer me, I heard the famous Boss Metal Zone I found Synthetic and too modern although she rglages EQ is very intressants. I also test a Boss Metal Core who can compete in this style and then the Line 6 Uber Metal.

The qualitprix is ​​excellent because this pedal turns around 89, which is given for the quality of this pedal.

With the experience I would do this choice without a doubt because I love this pedal.