Volume, tone, drive... And 9 different Tube Screamer/Overdrive circuits: OD1, 808, TS9, MSL, TS10, Exar OD, TS7, Keeley Mod Plus, and JHS Strong Mod
Well, it has 9 different pedal models all in one high quality analog pedal. And they aren't emulations, they are reproductions of those circuits... How they did it, I have no idea. But if you want multiple Tube Screamer and OD pedals, but don't wanna lug around 9 different pedals, or want digital emulations, this might be for you.
Haven't had to deal with JHS customer support.
Have not had a problem with this pedal.
This is an absolutely excellent pedal, built the way you would expect a JHS pedal would be built. It might seem a bit pricey, but a TS808 goes for $180 alone. This pedal covers your TS needs, but also provides quality high gain overdrive.