Looking at used is a good idea. Still want to make sure I find something that will power my speakers without melting. So I guess the theory is that most upper end models from reasonably good brands are built well enough?

If I had to I guess I could crossover my M80's/VP180 but that's one nice thing about my HK is that it was built well enough so I haven't had to. Seems kinda like a waste to buy something like the M80 and not use it all. Thou if a AVR had a setting for like 40-50hz I would probably use that.