When I was at the factory last summer, Ian showed me an experimental speaker that sported the outstanding 8" driver from the EP400 sub although I forget what drivers were above it.

After many months of wonderful listening to my M2s plus an EP-400, I often wondered what a small floor stander using the M2 innards up top with the EP400 innards (with amp) on the bottom in one cabinet would sound like. I betcha it would be an absolute killer by being able to reach down ~20Hz (with variable bass gain) combined with the great articulation of the M2s.

It would be expensive though, but I would probably go for a pair...

TAM