I'd go Acoustic energy ae1 active with a small form factor pre-amp /streamer....very good indeed....I can't say I've switched...but I have the Acoustic Energy as a second system in my small summer house, that reminds me..I really need to turn the bass down a tad.
I didn't fancy the kef route...I had a dem a few years ago and wasn't really that impressed, plus I like to keep the Streamer /dac section separated from the active part of the speakers....it makes sense this way as dac and streaming technology moves so fast and your streaming active speakers could become obsolete quicker than you'd be willing to shell out for again.
Also, I should add I had Naim nait xs /pmc 2021 speakers when I demd the kefs, ls wireless mki, they didn't really come close to the separates.....but maybe the newer gen might be better.....but as I mentioned, I prefer to keep the streaming part separated from the amp section.