buy the used Krell for the following reasons. 1. The krell match up with the 801's very well 2. The krell is over all better amp than most amp out there 3. If u decide on something else, it is easy to sell 4. get 200 KSA-S, best quality krell to buy for ur money. might be little more than what u want to spend...hell, save some more money and get the right one...do not settle for A/B rated Other good ones are Levinson No.27 or No.23