You did not indicate a price range, so I'll offer several options: Expensive amps (by my standards): 1. Ayre K-1 - very musical and smooth. Of the more expensive solid state amps I've heard, this is at the top of my personal list. 2. Moon W-5: a Canadian bargain. Medium-priced amps: 1. Bryston 7B-ST monoblocks Moderately-priced amps: 1. Bryston 4B-ST 2. Aragon 8088BB