does anyone know how the mono sounds on the 4K version?
I mean it isn’t out yet so probably not, apart from reviewers like this one: https://www.blu-ray.com/movies/Jaws-4K-Blu-ray/265299/#Review
… except that he said that it has “DTS-HD Master Audio 2.0” when the box clearly states that it’s “DTS Digital Surround 2.0 Mono” so uh… hmm.