As impressive as the Dolby Atmos soundbar was, the system can get better with a Sonos Arc Surround Sound Package. Adding two identical speakers for the rear channels gives better positional audio and a more immersive experience, making this an essential upgrade for many. For those that want the best bass, adding a Sonos Sub into the mix delivers a powerful and earth-shattering experience, although this upgrade is very expensive.
Surround sound speakers make audio more immersive; Sub adds cinematic levels of bass; TruePlay makes everything work beautifully;
Sub is very expensive;