I have an older PC (Windows 98) in my soundroom with a Creative Audigy Pro soundcard with a front mounted connection hub. My intention was just to use this for recording of LPs, old open reel tapes, etc. But, just recently I have been experimenting with using its SPDIF front output on RCA jacks into my Monarchy DIP Upsampler and NM24 DAC. I am just using the latest version of Windows Media Player and the Audigy set to bit perfect for playback. I am just experimenting, but so far all seems well. The only problem is the fan noise which is quite loud. I plan to build a sound absorbing enclosure for the PC which should take care of that issue, while still allowing for ventilation.