ASUS Xonar Essence STX Audiophile Sound Card and Headphone Amp Review @Hi Tech Legion
 

Keeping the audiophile spirit and philosophy alive, ASUS presents us with the Xonar Essence STX Sound Card and Headphone Amp. The ASUS Xonar Essence STX is a stereo sound card boasting an industry leading 124db S/N ratio, a figure worthy of the highest end discrete audio equipment. In addition, the Xonar Essence STX includes a dedicated headphone amp comprised of the highest quality components, including swappable OPAMPs to please even the most hardcore DIY audio enthusiast. The Xonar STX also features 24-bit Burr-Brown D/A converters for smooth, natural sound reproduction. To take your music a step further, sample rates of up to 192kHz/24 bit are available with a staggering 10Hz-90KHz (-3dB) at that sample rate.

http://www.hitechlegion.com/reviews/...stx-audiophile