not sure how useful this will be because i'm yet to hear the 14B SST2 but.....put Bryston (4BSST) in the mix a couple of years ago when i was looking for a new amp. tried Krell, Bel Canto, Levinson and a few others.
ended up with a Levinson 432....and it wasn't a difficult choice for me. the Bryston sounded way to forward with my Aerial's...more so then even Krell. couldn't come close to the luscious/rich sound of the Levinson (or as some would call it....the dark sounding Levinson =) )
tough call without listening for yourself.....good luck.