If you've just set up your speakers wherever they fit, you're probably not getting the best sound from your surround system.
When you're testing your Dolby Atmos system, pick a good benchmark video and stick with it.
If your speaker's audio quality is subpar, there are a host of Developer Options settings that can potentially fix the issue.
Your Xbox is surround-sound capable, and it's easy to enjoy 5.1 or even 7.1 immersive sound for your favorite titles.