Have a look at whitecamaross amp thread. Based on his observations, the Bryston B3 series is much more laid back when compared to SST2 series. The SST2 is going to be more forward sounding, probably with more attack and resolution. It depends on what you're after. I would concur that Bryston has had a change in its core sonic signature.
Comparison between the Bryston 7BSST² and the Bryston 7B³
I am planning to upgrade my audio system from integrated amplifier to separates.
I am in the process of acquiring a Mcintosh C22 pre-amplifier and considering option for the Bryston 7B³ mono blocks. I have listened to the Bryston 7BSST² thoroughly and would like to know if the
7B³ is better, same or worse in performance than the
7BSST² .