The Klipsch sensitivity specs for their Reference line are badly exaggerated, don't pay attention to them. The only sensitivity specs I would trust from Klipsch is for their Heritage line their THX line, and maybe their pro stuff. But the Klipsch will definitely give you a more 'in your face' sound'. Another brand which is known to be a bit forward is Paradigm, you might investigate some of their stuff.
I know you already shot down the idea of DIY, but give it another consideration, it probably isn't as difficult as you would imagine. There are kits like these
. You have to put together the cabinets (you could have a cabinet maker in your area do that), and in the case of the SEOS kits, put together the crossover. But for the sound you want, these would be sooo much better than even Klipsch. These will make your living room sound like an Imax theater. I would point you toward the Pi Four
and Sentinal 15
, with each of those you get a 15" mid bass woofer and a compression tweeter in a nice big horn. Their sensitivity specs are legitimate, and will blow away even the might Klipsch RF-7. Depending on how you go about building them and what upgrades you get, three of those for your front stage wouldn't set you back more than $2k total.
As for subs, get a couple of these cabinet flat packs
($240), a couple of these SI 18" D2 drivers from this page
(around $450 shipped guessing), this amp
($300) and this equalizer+mic ($200), and you are set for two heavy duty 18" subs for $1200, nothing else will even dream of comparing to that system for the price.