[cmdr.adama]

Hello Wolly,
even it is not mentioned on the EW902 product page they support HD Audio passthrough and HDMI CEC as well as NAS functions like AFP, DAAP, FTP, BT, Samba and DMS directly within the OS.

As far I know the Vidon Box uses 2ch downmix not only for high sampling rate 2ch/multi-channel FLAC but also for movies with multi channel audio or HD Streams if HD Audio passthrough is disabled. I would usually expect multi channel PCM output if a multi channel audio stream (e.g. AC3, DTS, TrueHD, DTS HD) is used without passthrough. But this is not the case. Why you don't use the EDID information read through HDMI from the connected device and use the best possible format/rate for audio output? I think that this also depends on SDK support as well as HDMI CEC, support of HD Audio passthrough for more/all AVRs and the support of ext4 for connected storage devices.

Passthrough means that the audio stream is used directly without any conversion (e.g. AC3, DTS, TrueHD, DTS HD). In case of 2ch/multi-ch PCM with higher sampling rates of 96 kHz or 192 kHz this is no passthrough but just support of PCM output with 2 or multi-channels and higher sampling rates.

Regards.
adama