From what you are all saying is if a single driver is not a point source then 2 can't be either. Funny thing the Urie Coax monitors were "Time Aligned" point sources. When you look at the measured data in the Improvements in Monitors AES article they measured better than the other 2 but all 3 are below the audible threshold. If they are all below this then any diferences should not be audible? So why go to the trouble??? Marketing tool??? Am I missing something???