Sorry Rome if I sounded short tempered, I've been around Ken to much. \:\)

As Ken mentioned, many changes happened over a long period of time. The drivers have been moved around, different binding posts, cabinet shape, etc. Also, I think the frequency response graph changed slightly on a few models, possibly because of the slight changes made to the internal crossover.

In other words, there have been no drastic changes, they still all sound awesome...

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85