I own a BDP S7200, and I use it to stream music from a DNLA server (Mac Mini running Kodi 16.1). I stream my music as bitstream and use the S7200 to do the decoding (in other words, I don't decode using Kodi and stream LPCM). I use SPIDF to connect my S7200 to my DAC. I have no trouble seeing the Kodi DNLA server and playing my FLAC and ALAC files. When streaming, I get bit rates that suggest 96/24, 88.2/24, 176.4, or 192/24 music files (e.g. bit rates between 5 and 13 MBps). However, my DAC sees 44.1 or 48 kHz resolutions, so it's clear that the S7200 is downmixing the music.
I've already wasted an hour of my life talking to Sony tech support, with no resolution. My firmware is current. They had me reset all settings, drop and rediscover the DNLA server, perform a full power cycle (i.e. unplug for 2 mins), etc.
I'm interested to know if anyone is able to get hi res audio output from SPIDF when streaming ALAC or FLAC files via DNLA, and if so, could you please post your settings? Or can anyone confirm that this is a known problem with the S7200?