I've owned the Aragon 8008ST (BB was supposed to be better) and the KSA 200. Both were nice amps. A lot depends on your room and speakers. At the time, I had Nautilus 805's and both were overkill. Although the Aragon seemed tipped too much to the bass IMO. Like others have mentioned, the Krell will run hot. It is also bigger than the Aragon, so think about those factors before you buy. I saw your Aragon go for about $1200 on eBay recently, and the Krell should be in about the $1500-1600 range. At that price, you should also check out Pass Labs, and Plinius. Nice bargains too on Lexicon/Bryston.