Amps several. Both Dune-films on 4K are excellent technically for picture and sound even if you don’t like the movies. From old movies shot on film Jaws is great to show to people, they did a very thorough job restoring that. I showed the Balrog-scene from the first LOTR to my father in law when he wanted an example. Plenty of Dolby Atmos-activity and huge low end in that scene soundwise, and it’s hard to believe Balrog itself is a 24 years old CGI-character, it has aged wonderfully.