My M100/1500/800/500x2 system in my 4200 cu. ft. basement room can't replicate the slam of my active LFR/1000-2/1000-8 system in my 1800 cu. ft. living room.

I have my 3 subs set to boost and my Onk cranked all the way up. No doubt it's loud but the dynamics are just not there! It sounds slow, muted, dull. If I didn't have the actives for comparison, I would have said the above-referenced tune is a sub-par recording.

There's a lot of mid-bass and mid-range energy that is just not happening in my basement system.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated