Ok, the new product pages are up. the compression drivers in the New SRM550 and 650 are a 1" diaphragm with a 1.4" exit horn. Totally backward! The horn exit should always be smaller than the diaphragm, otherwise you don't have any compression and therefore hardly any gain added by the horn! The older SRM450 used a 1.75" diaphragm with a 1" Exit which proportionally is more correct. With a 1.4" exit, they should be using a 2.5" or larger diaphragm. Crossover point of 3kHz, that's pretty high. Strange...