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.

content in English
Audiofanzine FR 13/12/2008

Electro-Harmonix Metal Muff with Top Boost : Recensione di Audiofanzine FR (content in English)


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(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!