i solved my problem while trying to run 2 x 2900xt and xfi together ,the answer was to sell the 2 2900;s and buy a 8800gtx and put that in with the xfi and works a treat .their wasnt room for the creative card running crossfire so they had to go as on board sound isnt up to much even when it says it 7.1 and anyway the 8800gtx is better than the 2 2900;s was anyway so its win win ,but its true people buy expensive vid cards and forget about sound it makes the game's come alive just as much as the graphics does
yeah, I had to re-arrange my PCI layout when I got my 2nd 1950. I don't like having my X-Fi being neighbor to a power hungry GPU. Thankfully, my mobo has enough slots that I was able to keep everything seperate enough for my taste.
The best equipment to test the output quality of a sound card is a good pair of noise-canceling headphone, any brand would do. Infact, I'd strongly recommend you to buy the Creative HN-605 for $40. This is a giant-killer. Use this with your XFi to listen to
http://somafm.com/groovesalad48.pls using Winamp with the Crystalizer turned on to medium. Listen for 30 minutes. It's a 64 kbps AAC stream that'll easily sound better than lossless WMA. You'd want to pull your card out at once and kiss it.
I've actually been looking into another, better headset than what I currently have. Granted, my headset isn't some cheap, junk model . . . I just think it could be better. I only use a headset when gaming or working late at night, otherwise I've got a decent speaker setup for whatever.
I'll check that dl out a bit later for sure, it's got my curiosity. TBH, I've got a few specific tracks on my system that I use for "fine-tuning" the software mixers and all, mostly because the audio range in the tracks is phenomenal, and being digitally recorded music, there is so many different layers to each track that it's easy to tune to my tastes . . . but, I still find it amazing tracks like that, though - because ever time you listen to it, you notice something else that you never heard before, and it breathes life back into the recording. If you ever want to check any of it out, you can PM me.
Plus, having an audio processor that can handle and reproduce that kind of a range is key - I've listened to those tracks in my car's beefed setup, or on other peoples computers, even on some high-end shelf units . . . and I still feel that the best sounding playback is with my X-Fi . . .
. . . except for that super high $1500 Pioneer audio system . . . unbelievable