The subwoofers provided are under powered. Users who upgrade through after market often run into issues with each software update attempting to fix/salvage audio, requiring re-calibration.
Would be nice to have some level of support in software for people who aren't satisfied with the faux premium speakers and want to upgrade after market.
(Software team: we love you. It's not your fault the chief audio engineer went with Amazon Essentials components. We love what you're doing to try to salvage things!)