How to get DTS sound on Sonos Arc and Beam | Trusted Reviews
Sonos Beam Gen 2 review | Stuff
app shows stereo pcm / 2.0, but using eARC and surrounds | Sonos Community
Considerable lag on a Sonos Beam when going from PCM to Dolby Digital on a 2017 Samsung TV and an Apple TV as the source. I tried both HDMI and optical adaptor.
How to get DTS sound on Sonos Arc and Beam | Trusted Reviews