I'm just purchased a pair of M80ti's with the intention of using them both for music and movie playing and was trying to determine what size/type of amp I should buy. I see these speakers operate from 10 to 400 amp range but don't know what I need. My room is about 12 feet by 17 feet and I like to have the option to play music loudly from time to time. Any suggestions/guidlines ?

Thanks