I'd recommend against a preamp with an integrated DAC. While I understand the convenience factor, digital technology is advancing at a blinding rate. It's the one area of my system that I expect to be obsolete quicker than any other. Being tied to an outdated DAC because it resides in my preamp is not something I'm interested in. Yes, you can always add a outboard DAC down the road, but then you spent money on a feature you are no longer using.
Just food for thought... Good choice on the Parasound over the Bryston.