A lot of people knock the Creative cards, but they definitely have a right-to-life, IMO, especially for gaming.
Just curious, when you say the Turtle Beach card sounded better, what kind of differences did you notice (ie, better mid-range, better bass, smoother highs)? I'm quite interested in getting the best sound for music at the cheapest price from my PC so if a $50 sound card is going to blow my X-Fi out of the H20, musically, it gets serious consideration.
I'll be honest with you.. the only sound card I own that offers comparable sound quality for Music playback to my X-Fi is my Auzentech Xplosion DDL sound card. But then again it's not doing much LOL. It's connected VIA a digital out (Optical) to my Logitech Z-5500's so the 5500's are actually decoding the Digital Audio (built in DAC's).
In the end I enjoy the sound quality effects emulated by the Crystallizer. So I don't really use the Auzentech that much anymore.
No $50 sound card compares to the sound quality of an X-Fi... no matter what anyone tells you. You can believe me, or invest in a $50 sound card and find out first hand... that's up to you.
Hmmmm...I don't know, I'm skeptical of that, the Chaintech AV-710 or the Montego DDL are
nice cards. Just because Creative is charging way too much for its X-Fi's no longer makes me think they're offering the best sounding gear. ...but I've only my X-Fi's and SB Live! as a reference. ...and to be honest, my ancient SB Live! gives my X-Fi's a serious run for the money when it comes to 2-channel sound (using the KX-Project drivers, that is) in subjective listening. ...but I know its S/N and THD+N don't spec as well as the X-Fi...but the card cost $60 less.
In subjective listening it's hard to differentiate any Creative card or any other "high end" dedicated sound card. Only people with an ear to sound can really notice a difference. I cannot notice a difference between my Live!, Audigy and Audigy2... but I do notice a difference with the X-Fi. That's mainly due to the Crystallizer, which I enjoy.
My Auzentech Xplosion sounds the same as my on-board Realtek card when using my Optical Out to the Z-5500's. Only when I use the DDL encoder do things sound better then my on-board sound. This mainly due to the accuracy of the signal when splitting it to each channel.
I dislike using the Auzentech for gaming, it really doesn't sound as good as my X-Fi Fatal1ty even when using the Dolby Digital Encoder/Decoder feature.
I suppose the best system con-fig would be one where I use the Auzentech card for the music and movies and use the X-Fi for my gaming needs. But as a jack of all trades, the X-Fi's performance in games and it's relative comparable sound in music and movies makes it the better card.
My ol' Audigy 2 even makes for a better sound card then my Auzentech for my needs. I just cannot go without playing Battlefield 2, Lineage II, UT2004, F.E.A.R, Prey, Quake 4 and WoW.