By all accounts, a pair of 7b-st's is a better option than a pair of bridged 4b-st's (if, for no other reason, the fact that the 7's are single purpose monoblocks and the 4's are designed as stereo amps that can pull double-duty as monoblocks means that there is redundant or unnecessary circuitry in the 4's). Personall, however, I got a 4b-st because it fit into my budget at the time and I knew I could bridge it and get another one later on if and when it made sense to do so. Hence, it seems like the old incremental / convenience v. (maybe unnecessary) purity of design question. I can't say whether the 7's really do sound any better than a pair of 4's, but the convenience of being able to purchase and upgrade incrementally won out for me. That said, I have found the single 4b-st to be more than adequate for my use and am no longer even considering getting another one. I do like Bryston, though, so I would say that it hardly seems like you can go wrong either way...
Biamp w/2 Bryston4BST s or 1 14BSTw/B W?
I currently have the B&W Nautilus 803's with hopes on getting N802's in the future. Anyway, I'm uprgrading to better amps (Bryston) and wondered if it would be better to buy 2 Bryston 4BST's (total of 250W x 4) and biamp them (possibly vertically) or would it be more beneficial to just run a single Bryston 14BST (500W x 2) or 2 7BST's (same thing)? It is theoretically the same amount of power just distributed differently. Any thought?