I think you need to educate yourself a bit more before you spend more money.
A good sub will only shake the floor if the program has frequencies in the range that will shake a floor. Most music does not. In the pop world only synths get this low or pop music where equipment can shift the fundamental of a bass guitar say.
Only very large pipe organs with big 32 ft organ pipes actually shake the floor. They do this even at low volume.
A large bass drum that is hit hard will shake the floor a bit.
The music you listed in your preferences will not include instruments with floor shaking bass.
Movies are a different matter. They use the LFE channel for deep sound effects, and also recorded sounds such as the eighteenth century canon recorded for Master and Commander.
The Sound track of Interstellar used sound effects and the Harrison and Harrison pipe organ at Temple Church at the Inns of Court London.very well timed response,....I just got my ears hurt a lil by my small svs-sb-2000, and I now have a lil more respect for it....I listened to a bass test on you tube called deepest bass and it finally shook the walls and made my ears hurt a little.. I now have to rethink getting a larger sub as my walls were truly vibrating as were my ear drums...!!! aha,...success at last...The klipsch are holding up fine so far, haven't had them past 80 on the volume "yet" but am very much tempted to do so. They are screaming at 80 but seem to have more to offer, I cant imagine what a true high end pair of towers sound like in a 3000 cu.ft. room....maybe one day I will get the chance to hear some. thanks Irv for all your input. and the photos are spectacular, have to put that visit on my bucket list...
This is the huge 32 ft stop case, and that shakes everything when the organist Roger Sayer calls on it.
Now that is big bass! I took these pictures and heard the organ at Temple Church during my nieces weeding this last March.
She chose an organ transcription of the Finale of Stravinsky's Firebird Suite for her processional. As she reached the alter, that was what you call loud and shook everything.
That was the most dramatic and impressive wedding processional I have ever heard by far.
That instrument also shakes the floor here when I play recordings of the instrument and it does not have to be loud to shake the floor. That 32ft stop engaged even softly sends everything vibrating.
The point is that your source has to have floor shaking material. As far as I can tell your choice in music does not.