Big Below 15k used that can play loud as heck

It would be a shame to use the Dunlavy for shake purpose only.  I used to be on board with the big Klipsches but as I grew older I grew wiser and no longer think of them as "hard rocking" or loud speakers. They simply get too harsh at super high volumes unless you've done some crazy mods or treatment. I always felt the mids/highs kept going with the bass trying to keep up (yes with the Klipschorn too).  I've had Khorns, La Scalas, Cornwalls, Chorus, Forte, CF3 etc.. I'd say the best sounding speaker when cranking to party levels is the Chorus 2.  

But after owning the Tekton Double Impact, I find them just as loud but much more pleasing at the high volume. They don't scream at you as much and you sense more of the lower/midbass thumb/slam.  

JBL 4367??

These are flat out reference quality monitors: 

https://www.audiogon.com/listings/lisaebe3-mint-condition-in-walnut-jbl-4367-speakers-full-range

Do try the Volti Audio Rivals! Very efficient (98 + db according to Stereophile), can play VERY loud w/ not many good watts & most importantly, sound excellent! Big, open, dynamic but also detailed, nuanced w/ a beautiful midrange & image. Email or call Greg Roberts (owner, designer & builder) & talk w/ him in TN. They easily have the dynamics of any Klipsch but also the smoothness & detail of any speaker close to their price range ($12 - $18K depending on style & finish). 

Wow, did the boomers come out to sound ignorant or what?  

"you listen to rap music, so let's recommend speakers that are loud but sound like crap because you obviously don't care about the quality of sound"

I think the recommendations for Klipsch are right now, maybe some Line Magnetic or JBL too?

I also agree that it sounds like your room has limitations more than the speakers you have, you could end up throwing a ton of money at a new system to only have the room just swallow that all up and give you back nothing in improvements.