"HDBaseT sends uncompressed HDMI video, including 3D and 2K/4K Ultra HD video, plus multichannel audio up to 325 feet (100 meters) over inexpensive Cat5e or 6 cable instead of over expensive HDMI. The HDBaseT output port in the two components can be assigned for either main- or second-zone configuration."
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http://www.twice.com/articletype/news/integra-adds-hdbaset-two-2-audio-components/107767