Processor as a DAC for music?


Any suggestions as far as using a HT processor as a dac and preamp for 2 channel playback?

Short list is

Proceed AVP- AVP2
Outlaw 990
B&K 50

Thanks for you help!
tommy
Exactly the direction I am considering. It appears one can get a high quality pre with a modern DAC at a discounted price due to the rapidly changing HT market.