Of those you mention, the Classe would be the best choice, by far, for sound quality and system matching. I like the Bryston B60 very much, I owned one, but it is very revealing and I think a terrible match with the Theils. Also, at sixty watts, I am not sure it would allow them to be at their best. The best I ever heard Theils sound, was in a showroom, connected to Classe seperates. They were connected with all Nordost cabling, which, to be honest, surprised me. This was at Lyric Hifi, in N.Y.
