the crunch and lead channels are pretty different. I tried some classic rock on the clean and crunch channels and it worked pretty well. The crunch/ clean channel has push/pull controls on the EQ. Pushed in, the amp is more modern. Pulled, it sounds more vintage/ single coil PU tones. Rush doesn't sound bad, though it might take a little coaxing to get John Fruchante (i didn't spell that right)/ RHCP tones.I think the amp is more geared towards hard rock/ prog/ fusion type sounds. The lead channel sounds quite different from the crunch and is on the dark side of things. It has more for Satch or Santana kind of vibe.