I had a previous post asking for some advice on amps to power m80s in 2 channel music. There are a lot of deals for older well named amps and I know there is always a chance an older amp may give me a problem that needs to be repaired at cost vs something newer with a warranty. I've been looking at amps that cost $1,500 or less. In my search I've found Nakamichi, aragon, threshold, bryston, and emotiva to name a few. If any of you use any of these amps or heard them I would love to hear your opinions. Emotiva looks like a nice amp that is newer but I don't know if they are as good as the older amps. Could anyone share opinions on this and if they use an amp they really like?