Von Schweikert DB99 vs Consonance M15-thoughts?

I own the db99's. running with 16 wpc set monos. I just heard the new Consonance M15 horn speaker and thought the M15's actually sounded better. to me it sounded open and has tighter bass than the db99's. hard to believe, but could this be a better speaker than the 99's? anyone compared these ? thanks