A used dCS Delius - ~$2k without FireWire - can be fed direct by either toslink, rca, Aes, or Bnc This affords some freedom to experiment with interfaces, giving the option to go direct or through a converter. Personally have strong experiences with lynx hd26 to aes ($800) and empirical audios off ramp 3 (USB to Aes,$1k), but you might well find a mac using toslink works for you.
Also dcs has an excellent guide to computer audio on their website, within their support section, www.dcsltd.co.uk/page/support
If you do go this route, strongly recommend that the Delius is running the latest firmware
Also dcs has an excellent guide to computer audio on their website, within their support section, www.dcsltd.co.uk/page/support
If you do go this route, strongly recommend that the Delius is running the latest firmware