A different take on the question is what I did-built my own. I couldn't afford any of the models that would meet my needs, so looked on Ebay UK, and found reasonably priced HPD 315's (12" Dual Concentric from 1975), with crossovers.
I then built very heavy 150 liter enclosures, eventually new crossovers, new woofer cones converted to hard edge surrounds, etc. They produce outstanding bass, a very deep soundstage, and considering their size, they do a fine disappearing act. They are innately musical, and can be driven very well with a wide array of amplifiers in my large room (34' X 16.5' w/cathedral ceilings.
I will not be looking to change speakers for the remainder of my lifetime.
Regards,
Dan