I prefer the Krell sonically over the 7B. I currently own 2 KAV 250a/3 and a pair of MDA 500's.
However there are some (even if not sonic) neat advantages to Bryston. The cost of ownership of the Bryston can be lower. A 20 year warranty is fantastic when the unthinkable happens, as it often does (and Krell service is NOT cheap). I like the extra power of the 7B (500w) but appreciate the 250a's sound, design philosophy and ability to double down into 4Ω more.
However there are some (even if not sonic) neat advantages to Bryston. The cost of ownership of the Bryston can be lower. A 20 year warranty is fantastic when the unthinkable happens, as it often does (and Krell service is NOT cheap). I like the extra power of the 7B (500w) but appreciate the 250a's sound, design philosophy and ability to double down into 4Ω more.