When we reviewed Asus’s Xonar HDAV 1.3 Slim in November 2009, we described it as a necessary evil for home-theater enthusiasts because of its unique ability to send Dolby TrueHD and DTS-HD Master Audio bit streams from a PC’s Blu-ray drive to an A/V receiver over HDMI. By the time you read this review, you should be able to do the same thing with any videocard equipped with a Radeon HD 5000-series GPU. How much value will Auzentech’s premium-priced X-Fi Home Theater HD retain under those circumstances?