Rockport Avior II's in 19x24.5 room?

That is being addressed.  I have an acoustian working on my room treatment design.

I am very pleased with my Audiovector speakers

 But my room is smaller than yours.

BASS SYSTEM

8+6,5” Isobaric Bass System

On my Audiovector R6 Arreté  ; a 4.5  speaker.( midrange on the rear for ´´presence ´´

The R 8 Arreté has the same  

BASS SYSTEM

8+6,5” Isobaric Bass System

But a lot more expensive than the R6 Arreté

I live in an appartment .....so nothing too crazy on the DB  side .

I am not a subwoofer expert .

I have read that the purpose of using 1 ( or 2 )  subs is not to have more bass.

The idea is to have better low frequencies . The subs , pull back a burdon on the speaker’s  woofers  and maybe on the amplifiers .

So a better over all ,  audio perception .

https://youtu.be/F7Bj9JanCag?si=NE4odXsJXLnnoEwg

https://youtu.be/KdrmlXGm2qs?si=2eP8zTSIDYpDIUzz

@mckinneymike 

I also used an acoustician. He designed my room and  while my Avior ii speakers were being built I built my room. Who did you go with? My acoustician was Jeff hedback at hdacoustics. 

I love subwoofers all types cuz it's all about the base😃