After hearing Ted Nugent on Huckabee this past Saturday night, playing through a Peavey 6505 head, I thought I might look into these amps...never have in the past because, well, they're Peaveys!!! What are the main differences in the 5150, 6505, and 6505+, other than they are models in succession. Do they have decent clean channels? Are they all American made, or does Peavey ship these amps in from China like most big amp manufacturers these days? I'd love to hear Peavey owners thoughts about these...thanks!