@gandalf Just reading your post now.
You didn't specify which JA floorstander, but I'm assuming you're referring to JA Perspective2 Graphene? Although, I don't own them anymore I still have fond memories of that speaker. If you like a modern, crisp sound then this speaker is hard to beat at that price point. I had been on a journey and changing speakers not because there was anything wrong with them but just that I wanted to explore different designs out there.
I moved on from the Perspectives2 to Harbeth 40.2. They are very different in their presentation so it's more a matter of preference. For my taste, I preferred the Harbeths and just fell in love with the beautiful midrange and vocals. However, they were not as transparent and fast as the Perspective2's. Plus the bass was not as punchy either. I briefly flirted with Magnepan 1.7s and 3.7i's but ultimately couldn't live with the many deficiencies. I currently own a little known brand, at least in the US, called German Physiks Unicorn II. Single, wideband driver, omni-directional. I feel it provides the right balance between something modern and fast like the Perspective2, the midrange magic of the Harbeths, and the three-dimensional soundstage of Maggies. These will probably stay with me for some time.
Anyways, I still remain a fan of Joseph Audio. The Perspective2's are, IMO, better than many similarly priced speakers like Focals, Sonus Fabers, or the smaller Wilsons. Just my opinion. The Pearls remain on my wish list ... maybe some day.
Good luck and let us know what you think once bring them home.