I have the LS50 and have the LS50 meta for about two weeks. On the same system and room the meta version is a big step up. It has better clarity and improved soundstage. Both need power and subwoofers. I have a Parasound Halo A21 and two Rel t/7i.
KEF ls50 meta’s are on the way
Got a demo today and ordered a pair. Should arrive next week. Will shootout with my current ls50s when they arrive. Stay tuned.