I like the JBLs because they produce a more linear sound without any obnoxious peaks. And they don’t really suffer from horn coloration the way Voltis, and to lesser extent, the Tannoys do.
Your amps would have no trouble driving the JBLs to high levels.
Caveat here is that everyone has different ears and preferences. I would try to audition the JBLs somewhere beforehand or buy them used. Some listeners prefer the sort of exaggerated dynamics that a non-linear speaker like the Voltis produce. I get some of the same phenomenon from my Borresens. They are not very linear but that’s what makes them sound so nimble and dynamic. The JBLs produce less of that but are a technically better speaker.