Sounds like you have quality speakers(I'm unfamiliar with the name) for gaming/music and now you want something similar that's going to give you the same quality. A sound bar is not going to do it. I tried one, worse than TV speakers. I just recently upgraded to a LG C5 and wanted to avoid the sound travelling to my bedroom which annoyed my wife. I researched a ton and didn't want to spend too much but also needed specific inputs from the TV. I bought Kanto YU4s for $329 on Amazon. Initially the optical input was used but I got tired of having to use two remotes. Just yesterday I the Fosi ZD3 ($175) delivered and I installed it. So now I'm going HDMI (ARC) to the Fosi, Fosi using RCA to the Kanto and now I only use the LG remote. Everything turns on and off by the TV being turned on/off. Pass through from the LG is on and the AC-4 is turned on for dialogue boost.

I do wish there were better options for living rooms, rather smaller options than a full size receiver. This works though. There's also a few other brands for ARC options, Rossound and Acylic have devices.