I am looking for a little advice in choosing the perfect Bryston amplifier for my newly acquired Sonus Faber Cremona M's. I am currently driving them with a B60R (along with BDP-2/BDA-1) in a 15'x 25' room and they sound damn good. Longing for more, I've convinced myself that more power will be needed to maximize the potential of the Cremona's. Would the 3BSST2 be enough and or would the 4BSST2 be overkill? Cremona's spec 50-250 watts as the sweet spot which would seem to match up with the 3BSST2 perfectly. My plan is once the right amplifier is in place, switch out the B60R (preamp section) with either a BP26 or ARC LS-27. Anyone have experience with either amp and the Cremona's?