Summary: This card is clear and produces good sound but is not flawless. It is adequate and I suggest getting the 2013 beta drivers if you use Win7. Music and movies sound great. It's mostly good in games and does what it should but sometimes, not often, produces mild choppiness in sound.
Pros: Mostly good, Used for gaming, music, and movies with headphones
Cons: Some windows explorer 'clicking' sounds seem to only produce part of their sound sometimes, Some gaming issues but probably mostly due to system load - choppiness of sound
Summary: Sound card installed without any issues. Installed the drivers and tried the Sound Software Setup. Was not working well. Went and downloaded the latest drivers from Asus for Win 7 64-bit and the Sound Software works a lot better. None of the preset Equalizer buttons sound good at all.
Summary: This review focuses mainly on the performance of the card from a technical point of view. It most likely also applies to the Xonar DX, which is basically the same card, but with PCIe interface instead of PCI.
Pros: Excellent DAC for the price
Cons: Too high output impedance for many headphones
Summary: I needed to update my on-board Realtek HD audio. I only had the standard front speaker jack, Mic-in and Line-In. I needed a good X.1 speaker set up. Xonar D1 was a good choice and Asus did have the required drivers for Windows 7 64 bit.
Pros: It just works!
Cons: The manufacturer is not widely known for anything but motherboards mainly.
Summary: Compared to on board audio the Xonar gives a new meaning to HD. I am using it for a 2.1 system and the quality of the output is great. I have to ask, what does a $300 audio card offer that this Xonar doesn't have?
Excerpt: Crystal clear sound with no noise at all using the front headphone jack. Even my old Xfi that this replaced had a loud hiss from the front panel jack, but not this card. Sound is crystal clear, bass is fuller and much less muddy than prior to. Movies sound amazing.
Excerpt: Fit neatly into my Dell GX280 SFF program, will grow to be element of my Household Theater Method as a Blu-ray DVD player. While their download website has drivers for Windows 7 bit) it downloads in an RAR format - seriously, could you make it tougher...?
Summary: Noise good up to around 96KHz, then some noise creeps in towards 192 KHz. stereo channels not accurately matched.(images noticable away from calibration point) Build quality good. Apart from noise level, The D1 is no better than my on board realtek ALC 889A.