Re: Requesting Advice
Overall, I think your speaker choices are fine. You may want to consider the fvx15 (or even the 18) as your room is pretty big. Depending on which you go with, you may want to plan on adding a 2nd sub (same model) to help fill the room and even out bass response.
Of course, you should call or email Ascend for their recommendations/thoughts. Rythmik will also give you recommendations for the sub without over-selling.
If you want alot of tactile response for movies or games, you may want to look at tactile transducers. They give alot of feel, particularly at the low end, without needing multiple subs at higher volumes. I’ve used buttkickers (ok) but upgraded to Crowsons (more expensive but more lifelike/better sensations IMO)
* LG OLED65E6P, BenqHT2050A
* Anthem AVM90, Rogue ST100, VTV Pascal 7 ch
* Sierra Towers/Horizon (all ELX RAAL), S2EXv2 surrounds, HTM200SEx4 heights, Rythmik E15HPx2
* VPI Classic 1+ (VTA & Fatboy Gimbal), PE Eagle/RR, VAS NOVA, Soundsmith Paua, Manley Chinook, Bob's Devices SUT, SugarCube 1 mini
* Oppo 203 & 103D, EverSolo DMP-A6
* miniDSP Flex, Audiosensibility & Blue Jeans cables, Symposium & Isoacoustics, GIK
* For RDJ: Anthem MRX720, Sierra LX, Luna Duo v2 center, CXNv2, TBD