I just added two Play:1s to my Playbar and the result is fantastic. The Sonos app is showing Dolby Digital 5.1 and Im happy with the audio when watching via DirecTV.
I also have Plex hooked up to this same setup and Im having an issue with getting the surrounds to return audio.
If I tell Plex the receiver is capable of DTS, I get no audio. This is as expected since the Playbar doesn't support DTS.
Once that's disabled I do get audio but not always from the surrounds.
If the movie is encoded with just AC3/Dolby Digital, I get all five zones.
If the movie is only DTS, there's still audio from the Playbar, but nothing from the surrounds. Is this because Sonos (or Plex) is down-mixing the audio to 2.0/stereo? In every circumstance the Sonos app shows DD 5.1 for about my system.
What am I missing?