Full Range Passive Speaker.
Even the best are down 3dB just when most rooms need boost in that region, unless that's acceptable.
Full Range w / Internal Powered Sub.
Now you've got the ability to boost but the sub / room location is far from optimal and may actually increase room nodes, unless that's acceptable.
How about $7K speakers which are flat to 55Hz and two small subs with on board room optimization. The advantages of independent positioning and subwoofers with on board room optimization will dramatically reduce the rooms nodes while loading the room with what will seem like a tighter quicker bass response optimized for unnoticeable system integration. Real controlled full range presentation with subwoofers you'll use with any future speaker choice.