Love those big multicellular horns. That Vitavox S2 driver is the bomb (used also by Living Voice). I first heard big Onken bass cabinets in early 2000s at Black Forrest Audio with their Fertin single driver speaker. Awesome midbass.
I had the Puresound A30...was quite nice sounding for the money...JJ-322 is better by a fair bit though...