yes it does do well with dispersion especially considering it is a 2D version where the JBL Eon lens in a D design. In 2D I fond the Karlson tapers sounded more natural an retained better spatial qualities but that is just my take as always ymmv.
features of the Karlson enclosure claimed "controlled ring" (reverb time) to enhance realism. K15 has a lrage enough fron resonator to gie some loading effect. Even K12 with aobu 0.6 cubic feet front chamber seems to give a sense of power - bass guitar sounds quick on transies (an illusion?). I need to get some more Lavoce or Faital 3" (4" would be nice if extended) - of course there's no money- we don't even have a functioning car.