Bypass ARC to get Atmos TrueHD?
Hi everyone. I've been scanning these forums and other places on the net to help with a decision which depends on whether I can get good Atmos from one system vs another. I recently bought the Samsung Q80 QLED 75" TV and really enjoy it but then got a deal and picked up a smaller 65" LG C9 television since I heard it had newer features (including eARC and HDMI 2.1). I prefer the larger size of the Samsung but I don't want to miss out on good quality Atmos. I spent a good amount of money building a 5.1.4 Atmos system.
I'm reading everywhere that ARC (which the Samsung has) can only support lossy Atmos through Dolby Digital Plus, whereas eARC (such as with the LG) can support much higher bandwith Atmos through TrueHD. My question is though if I connect all my devices (including my Bluray player which supports Atmos TrueHD) to my Marantz 6013 receiver and then via ARC to the Samsung, would I get TrueHD Atmos? My guess was that yes I would since my receiver would get the audio signal first and be able to output the lossless audio to my speakers but not sure if somehow the ARC with the TV, which happens more downstream of that, would somehow convert the steam back to Dolby Digital Plus?