The Beam is connected through ARC to the tv and it works with the surround but there is barely any sound coming from the 2 One.
Any tips, explanations?
Best answer by Airgetlam
The Sonos won't send a lot of data to surrounds when it's getting a Stereo signal. There will be a little, but not much, as it has to interpret surround data from the stereo signal, so it is a lot like the old Dolby Digital Pro signal, except less.
It has to be showing Dolby Digital for you to get anything like what you would expect for a surround speaker. And, as Ken has indicated, the Sonos will not interpret a DTS signal, so all of the devices that feed the TV, in addition to the TV itself, have to be set to send Dolby Digital only, and nothing else. Like Dolby Digital Plus, DTS, etc. Only Dolby Digital.