Electro Harmonix Metal Muff/ Top Boost

I've read a bit about this pedal and always compared it to the Boss Metal Zone, since these 2 pedals are the most highly recommended pedals for the Metal sound. This pedal has an amazing sound, really hard to explain. The tone can be easily changed by 'Low' 'Mid' Treble' knobs to your liking. I usually prefer more bass and mids rather than highs. I don't use the 'boost' button, I guess it's useful only for specific scenarios, like the one in the product description. The only drawback is that when connected to a mixer it introduces hum. I'm a beginner but from what I've read this is somewhat normal since I use a cheap power supply ,no DI box and no noise gate pedal.

I got this pedal with one led display not working, so we send it back and Thomann shipped new one within couple of days. Thumbs up for fast response!

This pedal can do it all, from metal to blues. A lot of high gains to minimal overdriven sounds. Maximum gain output is very high. It is also nice to have separate treble, mid, bass controls, so you can get all sorts of different sound colors. Boost button also comes in handy when playing solo parts.

Pedal is not pricey, well build and comes in nice black/silver color variation. Got cool name also. :)

It is not best pedal out there, but would definitely recommend it for players with limited budget.

If you want best blues or classic rock sounds don't bother with MM, you should go with tubescreamer, or if you have higher budget, some boutique overdrive pedals.

I'm huge fan of strong distortion effects. Through my adventures with guitars I've tested many metal effects.
Metal Muff have wide range of sound settings. Mostly its Lows and Mids are very visible in sound. Highs gives lots of sharpness, balanced to rest of frequencies.
Distortion sound is very clear, and deep. You feel its power.
Boost gives a huge kick in to sound sharpness, power, and volume. Real power, that can be incressed or decreesed as you like.
First feeling is like this sound is too muted or something... nothing more wrong. Its just different. This box need lots of patience and time for test many different settings.
Construction is very solid, knobs are ok, switches are solid and will stand even hardest boots.

One minus for this effect: Its dominating over other pedals on your pedal board. A bit confusing to plug it in " Your " Propper order with other effects, to not loose an edge of sound.