You don´t need a soundcard to feed the DAC. You need an USB->S/PDIF or AES/EBU converter.
- for coaxial connections i'd recommend the M2Tech HiFace in BNC design.
- i personally use the Musiland Monitor 02 for convertion into RCA coax, it sounds great and has an external powersupply, what is a plus because you don´t depend on the usb power ... but it´s pretty big.
- for AES/EBU i only know the M2Tech Evo which is a bit pricy.
neopac