The Super Duper 2-IN-1 has two Super Hard On boosts in one small box, plus a Master volume control that lets you use it as an overdrive/distortion with any input volume.
The two channels can give any amount of gain, from a soft bluesy boost in two stages, to a crunchy rock level, to a wild sustaining beast.
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From Zvex:
Gentlemen/women, start your engines. This pedal is so dangerous that I’m sure I’ll be getting a lot of complaint emails that people have blown up their amps using it. So let’s just start this off by saying I WARNED YOU TO BE CAREFUL. When using this pedal, start off slow, and
monitor your amp for potential damage. Don’t have too much fun! OK, have too much fun, but don’t blow up your amp in the process. Unless that’s what you want, of course, and well, gosh darn it, it’s your right. Good ol’ Pete Townsend did it. Well, at least he poked his speakers out.