Otherwise, if you are thinking of SF, try to find the wide baffle models. Absolutely among the best speakers I've ever heard at any price.
The issue is sheer cubic volume, which affects bass response, to overcome this you need multiple high output subwoofers and a way of rolling off the bass reponse that the smaller mid woofers or lower woofers in the main loudspeakers would see therefore, those drivers would not have to go as low which would increase power handling and provide enough sound pressure levels to provide clean undistorted sound to fill up the room. This can only be accomplished by an electronic crossover either in the preamp or a control processor.
Well, I've been schooled. I guess this is my first time hearing how a real audiophile would approach the issue. Thanks so much, I'll go do more research.