The Mozarts are indeed excellent speakers. I have owned a pair (second owner) for about a year now. I have used them with many componets, tube, solid state, and combinations of each. The signature series with the scan speak drivers are much improved over the earlier bi-wire units which had the seas drivers. I has a Bryston 4B myself, though not at the same time as the Mozarts. Still, being familiar with both pieces i think they should meld well. And you always have the option of adding a pre-amp should you wish to fine tune the sonic signature you are hearing. Especially so if you chose a tube pre. A discussion for another time perhaps. Anyway, if you are interested I have a mint pair I am selling, give me a holler if your interested or have any questions in general about the speakers. Good luck.