I never really cared about audio equipment until the last year. My first purchase didn't go well. I bought a pair of Bower and Wilkins 683's (89db, 8 ohm) and a Marantz HD1 Amp (35 w-8ohm 70w-4ohm). It didn' t take long to hear the problems. The Marantz couldn't drive the speakers. Distortion was present. Fearing that such a weak amp might damage the speakers, I stopped listening to the speakers and went back to the headphones. Now I'm looking at the Yamaha as801 with a little more than 100 watts at 8 ohms...but some people tell me that for these particular speakers that even that is too weak.... Makes me wish I bought a speaker with a higher sensitivity rating.