Download the latest ASUS Xonar PCI Audio D1 device drivers (Official and Certified). ASUS Xonar PCI Audio D1 drivers updated daily. Download Now. SOUND CARD ASUS XONAR D1/A Sub description. Product is in next day delivery conditions And this product is not shipped within 2 hours and 3 hours. The ASUS Xonar D1 is a PCI sound card with a dB Signal-to-Noise Ratio (SNR), which provides audio that is 35 times cleaner than onboard audio. With the.