verdant,
Would that JA-like speaker be the Bambusa MG 1 listed on your web site?
In any case, I had the JA Perspective speakers at my home for an audition a couple of years ago. While they have a reputation for fine detail, I actually found my Thiel 3.7s pulled out a little more detail vs the JA speakers. But what is most seductive, to me, about the JA’s is the quality of the sound; really grainless and pure and smooth (and that tweeter is just terrific - though it’s probably an inaccurate cliche that metal tweeters do metal sounds better than soft domed, the JA speakers really make cymbals and metallic objects sound authentically metallic.
John Atkinson has put it well in some of his speaker reviews: that the sound of instruments like drum-hi-hats often take on the character of "bursts of modulated white noise." Yeah, you can identify it in the recording as a drum cymbal, but it really doesn’t sound like a real drum cymbal. One of the first things I heard in the JA speakers is how authentic drum cymbals sounded. (That’s another feature of the MBL 121 speakers I own as well: incredibly convincing high frequencies).