Almost every notebook use onboard sound cards with average quality. Sometimes we want to upgrade its sound card to become Hi-fi audio. What is the solution for it? Best solution is using USB sound cards. One of USB sound card that offer Hi-fi audio is ASUS Xonar U3.
ASUS Xonar U3 USB sound cards was designed for notebook users with size bigger than flash disk. Xonar U3 has features such headphone amplifier driver, best surround sound experience with support for Dolby Headphone, Dolby Pro Logic IIx, Dolby Digital Virtual Speaker and Dolby Digital Live and it support ASUS GX2.5 for enables realistic 3D audio effect in games. Xonar U3 with hyper-grounding technology will separate audio from noise so it makes clear sound.
Xonar U3 price is about $40, you can buy it from Amazon and after you buy it, I hope you will enjoy listening hi-fi audio from your notebook.