@john11, what you propose can be done, with possibly quite good results, but it's way, way down the rabbit hole. To do it right, you essentially have to engineer an active speaker, which is not a trivial task by any means.
Years ago I tried it, using a pair of old LaScalas, a pro audio eq/crossover, ss amps for the bass bins, and four flea watt SET amps for the mids and tweets. The loads, high sensitivity and limited bandwidth of the horn loaded drivers sidestepped the inherent limitations of the amps, and while I could be completely wrong, it seemed like the SET's inherent lack of crossover distortion paid dividends with the extremely low power levels and highly revealing horns involved. Fully active, eq'd, and time aligned 'Scalas sound pretty darn good.
It was a fun learning experience, but ultimately an over-complexified PITA time waster, more about techno tinkering than actually enjoying the music. I would advise you to reconsider your plans.
