I’ve been posting about Disney+ and IMAX Enhanced Sound by DTS in another thread for a bit. Here is a helpful article on the matter.
A/V aficionados will be happy to hear that DTS:X immersive sound has arrived on Disney+ with the "Queen Rock Montreal" live concert film and 18 movies from the Marvel Cinematic Universe.
www.ecoustics.com
Apple TV 4K, all generations, do not support DTS at all so it is a no go there. The Fire Cube Gen 3 does not support DTS streams at all either but can passthrough DTS from an externally connected device via its HDMI IN port. Nvidia Shield TV Pro supports DTS and DTS HD MA streams as does Roku Ultra 4800X. But, Disney+ is currently blocking IMAX Enhanced audio output to them. My Shield seemed to try to work and then the Disney+ app not only stopped working, it shut the Shield down and I had to reboot. Later, it only passed Dolby Atmos. There are other issues with Disney+ and the Nvidia Shield TV Pro, but that is for another thread.
Anyone with an XBOX Series X/S knows that it supports Dolby Atmos using Dolby MAT 2.0 like the Apple TV 4K or Amazon Fire Cube. But, must download the Dolby Access app from the Microsoft store. They can also output everything as DTS:X after downloading the DTS app from the Microsoft store. But, the Disney+ app for XBOX does not currently support IMAX Enhanced Sound By DTS( lossy DTS:X ) and setting the XBOX audio output to DTS:X means Disney+ will give you a DD 5.1 signal that the XBOX will output as DTS:X. It will not be the actual IMAX Enhanced DTS signal.
All but three of the IMAX Enhanced titles from Disney+ feature DTS:X. “Iron Man,” “Guardians of the Galaxy Vol. 1” and “Lightyear” do not currently have a DTS:X track. Curious what deals were signed with whom and when to botch such a long awaited roll out. But, Disney isn’t doing many things right these days.