Personas....7F vs 9H

Thinking about one of these speakers. And looking for advice/thoughts about why you would prefer one over the other, suitability in a 18 x 18 room with high ceilings, etc. Have heard the 9H and was impressed. Aside from the room correction and built in amplification, and the benefits these should give, is there a difference in their sound that would cause one to be preferred over the other?

Thanks , 
Brrgrr