monolith 13 in

Ok, where to even begin. I just upgraded my main speakers from Klipsch Rp8000fii to rf7iii. My current subwoofers are 2 rsl 10s speedwoofers. The subs sounded good with the Rps but now that the rf7s are here and each of them have 2 10 inch speakers it doesnt sound like the 10 inch subs dig deep...

It took me years to search and shop for a perfect sub for my home theater. This Monolith 13 THX is insane, the bass output is hard to describe, but I did not follow my own research in the need for at least 2 subs for even bass in a room. This sub is just too big for a multi-purpose living room...