Thanks all for the replies.
@rotarius Glad your enjoying your R700s!
@kalali My only experience is also with MQA enabled Bluesound Node2 as a source, streaming Tidal HiFi, and that's what the dealer was using as well. I saw a Peachtree and a pair of Parasound mono blocks. Not sure which ones were being used. I may have to go back and get some more information.
I wouldn't say that the KEF R700 sounded better than the Vandys per se. Just more detail and a higher and wider soundstage. A lot of it could've been the amps and/or the room, which was considerably bigger than mine. My listening room is an upstairs bedroom in a Cape Cod. It's about 12' x 10' and has walls that angle with the roof line starting at about 4' high.
The KEFs, in the dealer's show room, threw a sound stage like I've never heard before. The bass wasn't nearly as extended as the Vandy's but the detail and sound stage were superb. And the MQA versions of Tidal tracks were damn near holographic.