Best used 5 channels amp. for both music and movies

The last two posts are both excellent advice - which one is best depends on the rest of your system and tastes, and you might want to consider two amps - a better 2-channel coupled with a 3 or 5 channel amp. I currently have the KAV-500 and the KAV-250a (for the fronts). I really like HT and I listen to a lot of music, and the speakers I have (Dynaudios) really need the current to open up. That said, the KAV-500 is a nice HT amp and you can get them for not a lot over $2K used these days since they've been discontinued. It runs hot, but not ridiculously so. Depending on the rest of your system, I'm not sure I'd want to play music over the KAV-500 forever, though you can always upgrade the fronts later and keep the 500 for the inevitable 7-channel theater. -Kirk