which Bryston for Contours 1.3?

A 3b would work just fine. If your room is small I know a 2B will likely work as a friend of mine has Thiel 0.5 that he drives with a 2B and they sound great, my point being that the Dyns also have first order crossover so I think they will work if your room isn't terribly large.

ok, thanks for the information. Yes, my room is small. I hope a 2B will be enough. I'll try that next week.
Thanks again.