There is a lot of confusion about just what the Catalyst is...is it a clean Booster, an overdrive, a distortion, or a Fuzz? The answer is "all of the above." What does it do best? Clean Boost, non compressed crunch tones (ala Jimmy Page, 70's Jeff beck) and non-compressed distortion/fuzz sounds...accent on NON-compressed. Other unusual traits of the Catalyst are its tight low end and ability to give both flat EQ and accentuated Mid distortions simply by manipulating its 2 band EQ.