My amp is really weird, 4k pass through is fine, but no HDR. So the Xbox one s and PS4 are now directly to the TV. Then I have a weird issue with arc and dolby digital so somehow it's now working as an arc connected amp control wise but with the sound going over optical. It's all working but it's a real mess and despite knowing how to get it to work I don't have as clue why it's working like this. I can't justify the Atmos upgrade just yet, debating getting atmos for headphones but until there's more games with it a full set up is just a bit over the top.well add a new amp to your list as well as older amps can not pass-through 4k video or use ARC meaning no 5.1 audio, unless you can push the audio out the tv using hdmi or optical to the amp so using the tv as a passthrough.