I'll second the Devore O/96 suggestion made by an earlier poster. High sensitivity, so easily driveable, gorgeous visually and sonically (IMO). And, oh yes, sound lovely at low volumes as well. If there is a dealer within reach, might want to give them a listen.
Your Bryston is a fabulous piece btw. Although currently running a Pass integrated, I've had several different Bryston amps & preamps over the years and can't speak highly enough of the company. The 4B3 might possibly be a little overpowered for O/96s however, depending on how much you value being able to use the volume knob past the '9 o'clock' position :-) But the 4B3 would likely sound superb with Devores. I still had my last Bryston amp at the time I purchased my own O/93s and the match was lovely. I did, however, end up with a Pass INT-25 during a conversion from full separates to an integrated amp.
Good luck in your endeavor!