One of the most elegant stereo systems I have heard recently was at a friends place in January who uses a 5W single ended triode tube amp to drive a pair of high sensitivity (95db/w) Cain & Cain Abby speakers. He listens mainly to classical and jazz and they are very detailed and transparent in his small apartment. The downside was not good deep bass performance below 75hz. Otherwise it sounded very nice for strings and vocals in particular.

John