Have you considered moving up in the Dynaudio line? As a former C1 and C1 Sig owner they are fantastic with the MKII/Sig being better at low to mid volumes. The originals you needed to really crank them up to sound their best. To get better than the Dyn C1 MKII/Sig I got the Raidho D1's.
As far as Bryston I had the B100sst and my sons 3Ssst and they sounded almost identical. Good resolution but a bit dry sounding. I almost bought the Naim SuperNait (better PrAT) but not enough control in the music. In the end I bought an Octave V70SE tube integrated. Better control and still a good amount of PrAT. I can change tubes to change the sound.
As far as Bryston I had the B100sst and my sons 3Ssst and they sounded almost identical. Good resolution but a bit dry sounding. I almost bought the Naim SuperNait (better PrAT) but not enough control in the music. In the end I bought an Octave V70SE tube integrated. Better control and still a good amount of PrAT. I can change tubes to change the sound.