I have my PC connected to my Logitech Z-5500 using a coax cable, which uses the coax port on the motherboard, which means i am using the REALTEK HD AUDIO (onboard), I was just wondering if I was to buy a Sound Blaster X-Fi sound card how do I use my coax port/cable, as no sound card I have seen has a coax port on it, and I would like to use my coax cable to get Dolby Digital.
