Anyone got strong opinions (either way, of course) regarding buying a refurbished receiver from web retailers such as Ecost? I'm about to purchase some M80s and need a good 4 ohm receiver to power them. I've thought about Denon's from Ecost--that are "re-conditioned", as they call them. Any thoughts? Experience?

Also, anyone disagree with a DENON 3803 or the like for the M80s?

Thanks!

TKHanson
Denver