Well, you could load all your CDs onto your computer as full rez files(wav, AIFF, Flac) and not have need for a disc player. Course if your like me and sometimes also wish to spin a disc then you would need the player. There are players that allow access to there internal DAC via coax and/or optical. Would ned a USB?SPDIF converter to link computer to it. I feed my MAC computer and a disc player to a DAC that can accommodate both. I sometimes listen to public radio via FM in my living room system which is also used to augment video. I am currently using a tube pre into a SS amp, however have also used a Vincent and a Pathos integrated, both tube/SS hybrids. If the DAC has the required inputs to accommodate all your digital needs the integrated need not have too many inputs. And, as willemj stated you can run a DAC/Pre directly into an amplifier. Most of them can be set for either fixed or variable volume. You could focus on the digital source issue now by using one of them into your B&K amp and delay decision on amplification until that has been thught through.
Sooo many roads... Good luck in your travels.
