After a lot of research and demoing I have just invested in a CAD 1543 mkII for my pro listening-studio (used for choosing and checking audio files for record companies). It is a classic r2r using a number of the old Philips 1543 chips, and is the most musical dac I have personally heard at any price point. I love its pure simplicity: one USB input only, no filters to mess about with, no external power cord to worry about, one pair of rca outputs, short signal paths, and a well-designed power supply.
Ideally of course you do need to hear your shortlisted DACs in your own system as system synergy is key.
Ideally of course you do need to hear your shortlisted DACs in your own system as system synergy is key.