Bryston 28bsst2 worthy upgrade from a krell fpb70?

Is there a question of reliability, get it fixed if it breaks down! I mean really, come on guys, listen to the amps.... Is it a better fit for your speakers? Is it a better match for system? How does it sound at your preferred listening levels? If your trying to break your eardrums, either amp can probably help you do that, if your trying to get perferred results with your given equipment at your listening preference, then do what any smart buyer would do.... Bring it home and listen for a couple weeks and put back your Krells and hear what you think!