For anyone who's interested - this is a HDMI audio extractor that definitely works at 192KHz on the COAX. Alot (I've tried a few) do not do this. This is also cheap too!
http://www.ebay.co.uk/itm/CE-LINK-HDMI-2CH-5-1CH-Audio-Extractor-HDMI-video-audio-extractor-SPDIF-Stereo-/231408744806?
This gizmo works very well. I use it between the m-dac and my tablet which has an hdmi output to listen to files and internet radio. I haven't tested it rigorously but the sq seems better than a direct usb link between tablet and m-dac.
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