I just bought the Sonos Beam, still dont have the TV so I was planning to use it only as AirPlay speaker for now.
From the first sound check it seemed like the sound is really lacking for some reason, and after some more testing I figured it out - the center of the Beam is just mute, all that is playing are the back facing side speakers and woofers.
Is it just because of the AirPlay, because I am technically sending "just" stereo, therefore the third (center) channel is off completely? Or is it defect? Can you please try AirPlay any music to the Beam from iPhone and let me know if the center speaker is playing or not? Thanks!