Electro Harmonix Op-Amp Big Muff Pi Fuzz Reviews

Crushing wall of fuzz

This is a superb version of the Big Muff imo. It has that certain sound some people look for, and goes into an amp really nicely.

Amazing, bright sounding fuzz!

It sounds better than I expected! If you are bored with the "op-amp" switch, you can turn it off and achieve classic big muff sound.

I got it being myself a huge SP fan, it's impressive how close you can get a SD tone with this pedal and some minor tweaks on the amp.

I had the PI NYC Big Muff (transistor versione) in the past, this is a better one if you're after the SP's vibe and tones.

I've never had the 70's old real Op Amp version so I cannot compare the 2, but from the rewiews i read and seen (from YT), it's really close to it.

The only little notice may be the spacing of the knobs, sometimes when adjusting the tone knob, it's easy to touch the knobs above, apart that the mini size is ok!

Classic muff

Classic Op-amp muff sounds in a smaller more user-friendly size, less gain and volume than the OG but comes very close.

Great for fuzzy and heavy music.