Henry is dead when the sexy knob points to the little skull and x-bones. Touch the sexy knob and make awful sounds. This control is a volume control. It has linear taper thus giving a more interesting degree of saturation and a better preservation of high end frequencies. Mr. Savage is one fuzzy little mother fucker. If you need some kind of sound reference or sonic anchor so you know where this thing is coming from lets say its like a Univox Super Fuzz at its most bulbous and a silicon Fuzz Face chewing on a rusty battery. Its smooth like ground up glass used as a facial exfoliant. Its heavy like doing push-ups with your face.