which deliversuncompressed and object-based audio from the TV to the receiver via a single HDMI cable. TVs play video directly from TV apps at best available picture quality—either 4K or 8K—while the receiver identifies the best available surround format for decoding. ...
This AV receiver supports two source, two-zone audio. Enjoy surround sound in the main room and a separate source in the second room, or play the main audio source so everyone in your home can enjoy.
After that, if it still doesn't solve the problem, then unless we are there to help you troubleshoot, it may be very difficult to narrow things down. Also, there is still the <$100 Fosi V3 power amp that you can use to power the surround of height speak...