Would you like to see just how far it can go with overpriced cable that sounds just like ordinary cable from Radio Shack in a double-blind A-B comparision? Try the link below, but be seated when you do. And, if you are on any heart medication, take it about an hour before you look at the link. Scroll down to the bottom of the link for the prices.
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ttp://www.audiovisionsf.com/?page=detail&product_id=1314 There must be some very rich
deaf, dumb suckers audiophiles out there.
About the sound cards: I just use the Realtek 888 or 889 sound chip built in on my Gigabyte GA-EP45-EQ6 motherboard. There is no difference in the quality of the sound from it compared to the M-Audio Delta 192. Well, except for the problem with the level of the signal (balanced) on the 192. Built-in sound chips have specs well better than human hearing these days, so you can be confident with your decision to stay with it. Only if you need more I/O than the built-in chip provides, say if you are recording a band in a home studio, then the sound card with more input ports will make sense. LossMentality gave very good advice.
If you want to have some fun exploring psychoacoustics, and how the power of suggestion can effect perception of sound, let some friends listen to your system and tell them you are using the built-in sound chip. The next time they come over, tell them you have upgraded to a $200 sound card (can be any one you want to name), but DON'T actually buy or install a card. Just leave your speakers connected to the on-board sound chip. I'll bet you that they think the sound from the $200 sound card is better than the built-in sound chip! Never tell them what you did unless you want to lose them as friends. Just tell them later on that you didn't like something about the sound card and sent it back.
Meanwhile, rock-on with your Corsair speakers and have a Happy New Year.