Check out the Linkwitz website: https://linkwitz.store/category/lxspeakers/
I have both, the LX521.4 and the Sirius. They are mindbogglingly good! The 521.4 just won the 2025 Editor's Choice award from TAS. The smaller Sirius should fit your description well: it produces a wide soundstage and accurate placement of instruments and singers. It would be ideal for a Jazz aficionado. And both are well in your price range with $$ to spare for a nice cartridge.