Yes, the soundbar would work further away from the TV. But that's going to make the sound "odd", being away from the visual. But don't forget that the soundbar is also a Roku player, so you're paying for a player when the TV is already one. Kind of defeats the purpose of the Roku TV. The wireless speakers that are available are designed for surround sound, so you'll only get the rear channel sounds out of them. The TV still provides the front sound.
You have a couple of choices. First, you could use the Roku app on a phone or tablet and listen using the "Private Listening" mode. Just be aware that it will not provide audio for anything that is connected to an HDMI port on the TV, so using a cable box or some other external device won't send the audio to the app.
The other choice is to get a Roku WiFi Direct remote. Almost all Roku TVs support them, but you can check for sure by looking in the Settings/Remote menu. If there's an option to add another remote, you can add the Voice Remote or Voice Remote Pro (the latter having rechargeable batteries). Both offer a headphone jack on the remote for private listening. Remember to always unplug the headphones when not in use, as it drains the remote batteries quickly using that function. Headphones left plugged in will completely drain a set of AA batteries in a few days.
Dan
Roku Community Streaming Expert
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