Summary: At some point, the onboard sound just make music drag and not enjoyable. This card makes no drag, but produces silk smooth sound. However, the driver on disk crashed my computer at installation. The downloaded version from Asus website installed smoothly. The software interface kind of confusion and nowhere to find help. Still the card works and produces sound as expected.
Excerpt: I installed the Xonar DX sound card on a Asus P6X58D Premium motherboard to replace the onboard 7.1 sound. I am using a Klipsch Pro media 5.1 sound system and it had never sounded the way I thought it should. With this sound card installed the difference is amazing. Dynamic range is fantastic and bass is great. The Klipsch system now sounds like it should. Xonar dx is highly recommended.
Excerpt: No, It's not a Xonar STX! but I really like this sound card! I listen to music, Play video games and watch ripped blue ray movies (legitimately of course) Improves the sound quality in general. this is just night and day from the on-board sound I listened for over a week (waiting for this card to be available) Disclaimer: I have another PC with the Xonar STX... Not even touching it...
Pros: Easy To Install, Easy To Use, Good Audio Quality
Summary: Bought this to replace my Creative based Auzentech X-Fi Forte. Connections and installation was easy, plugged the front panels HD audio without hassle. Sound quality, it depend which use you intend to do. I find the audio different on some outputs. The sound I use on the speaker was too muffled on my speakers while it was too hissy on my headphones.
Summary: old motherboard does support 5.1, but when i upgraded to z906, nothing really changed, i got a bigger bang than the old z10, that's all. but clearly the motherboard is taking a toll, because it just kept restarting the speakers. so i got the dx7.1. there hasn't been a big improvement over the sound quality, i'd say 20% tops, but the base is better. a good card to get over the stock ones.
Pros: easy to install., huge improvement over the sound card on the motherboard
Summary: I purchased this as an alternative to my motherboard's on-board sound solution after it started developing some weird issue. Rather than try to fix that issue, I decided to dodge the whole thing by installing one of these and I do not regret it one bit. The control panel also allows for numerous more custom settings than my on-board sound did. All in all, a great, moderately low cost upgrade over on-board sound.
Pros: Excellent sound. A great improvement over on-board sound.