Depending on how your PC is setup, you could just run a cable from the PC's headphone jack (3.5mm stereo) to separate right and left RCA jacks and into any input on the preamp except the phono input. Here is such a cable.
Or, if your PC has a sound card installed just a regular RCA cable.
The highest sound quality will come from some type of a music streamer, (Sonos, Auralic Aries, etc.) out to a DAC.
Or, if your PC has a sound card installed just a regular RCA cable.
The highest sound quality will come from some type of a music streamer, (Sonos, Auralic Aries, etc.) out to a DAC.