That's quite a large area. If you like higher listening levels you might have to go with in-cab M60/80s, at moderate levels the M22s would be ok....it also depends on how far back your seating area is. A lot of those older(larger) drivers would be embarrased by many of the comparatively small, modern woofer designs these days.
Listening distance is about 16 ft away. I definietly know what you mean about the smaller drivers, but I feel more then two will be necessary. Thats why I was looking at using a VP150 vertically.
