Hi, @CharlesG1.
Welcome to the Roku Community!
We appreciate your feedback regarding our Roku TV, and we understand that you have a question about connecting a subwoofer. We're here to provide some information.
Please be advised that you must have Roku wireless speakers or a Roku TV Wireless Soundbar set up and working with your Roku TV system for it to be a Roku host device. The subwoofer will not work with the speakers built into your Roku TV.
Furthermore, you may visit this support article on getting to know your Roku subwoofer
If there's anything else we can do to assist you, please let us know. We're always willing to help.
Thanks,
Reynan
Reynan L.
Roku Community Moderator