Hi there! Gator59
We’re glad to hear about your interest in setting up Roku surround sound with your Onn Roku TV. You're right, Roku wireless speakers and the Roku TV Wireless Soundbar can only be used together when paired with a Roku Plus Series or Roku Pro Series TV. For more details, visit here.
However, to enhance your listening experience, you could set up a Roku subwoofer to complement your Roku wireless speaker setup.
Hope this helps! Let us know if you need more info.
Roku Community Team
