Posted 27 January 2009 - 08:33 PM
The HDMI from the graphics card will provide audio, it doesn't even use your sound card. I doubt the sound quality would be poor, but to some it may. I'm sure you could always add in another sound card, but your home theater speakers would need to connect to the sound card directly, the sound card won't improve the quality of the HDMI in the graphics card.
If you need analog audio to your current desktop speakers, you can just plug them into the sound card you already have.
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