Analog Sustained Fuzzy Distortion: True Analog Fuzz the way it should be which roughs the sound nicely and can compete with more well known (and much more expensive) vintage rivals. Like any other MOEN Effects Pedal, the Fuzz Moo is designed with analog circuitry to ensure full processing and reproduction of the original signal without losing any details through digital sampling or processing. I have been playing with this one and it's pretty meaty with alot of headroom available. Kinda like an very early Trower/70's Fuzz sound, but it is pretty flexible in acheiving different levels of raunch. Note.. when I say it kicks back, I mean it. There is a lot of gain already in this box, so you might goes easy on the gain from the amp, or you will be howling like Ted Nugent when he is really pissed off ! This pedal will fight you back, but that is why I like it... I am always looking looking for that beautiful accidential "noise"! When A/B in a studio against the Muff and some other well-known Fuzz boxes.... the Moo stomped all over them!! Very musical and workable Fuzz tones.