With the latest firmware update (Version 18033R) SONY HAP-Z1ES is supposed to be supporting Media Server functionality.
The Helpguide says that "Some USB digital audio devices may not work for playback." (see http://helpguide.sony.net/ha/hapz1es/v1/en/contents/TP0001220509.html?search=dac )
I've tried to connect HAP-Z1ES via USB with the PowerDac Wadia 151 yet i'm getting "USB device not supported".
Has anyone faced a similar issue and is there any way how to get it working? Seems I'll have to employ a USB to spdif converter ;( Thanks