Red Rose Classics vs. Aurum Cantus Moon River II

The speakers that Red Rose Music (i.e., Mark Levinson) sells as their CLASSIC model is a modified version of the Aurum Cantus Moon River II. Some of the modifictions are immediately apparent- the Red Rose Classic has a rounded baffle or "waveguide" alongside the ribbon tweeter's diapragm opening, one assumes this does something to the spatial response / imaging. I've read the bass tuning of the ported enclosure is entirely different, with a modified woofer and a different port. The crossover is also different according to one source. Red Rose did not answer my email asking for info on their custom changes to this Chinese speaker. Does anyone here know anything about the tweaks that Red Rose applies?