A couple of "hands-on" reviews of the new Beam mention a slight audio lag in the video demos of the product. The demonstrators said it could be addressed by adjusting the controls with the app. In reading more about audio lag and lip sync issues with Sonos soundbars, it seems that the one sure way to eliminate the lag is by switching from Dolby Digital to PCM stereo.
If I'm going to use the Beam on its own without a sub or rear speakers, will I lose much by doing this switch?
In other words, with this simple set up is PCM stereo enough to provide high quality sound from an Apple TV 4K connected to a TV with the Beam connected to the TV through an HDMI ARC port?