How I customized my Sonos speaker to make my home theater sound truly immersive

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Rear speakers are a surefire way to upgrade your Sonos soundbar's performance. When listening to or watching content in spatial audio, you may notice sounds moving behind you -- that means your rears are doing their job. A subwoofer adds a hefty layer of bass, and if you can feel it, it's working.

I used to listen to stereo tracks on my Sonos home theater, consisting of an Arc Ultra, two Era 300s, and a Sub 4, with the default settings intact. I found myself saying, "Wow, for such physically imposing speakers, the soundbar seems to be doing most of the heavy lifting." 

Also: How I upgraded my Sonos soundbar's audio quality - 3 easy and free methods

If I were listening in stereo, nearly every component of the song would come through the Arc Ultra ...