A:AnswerI will advise you ask SVS because they will consider both layout and cubic feet of space.
I myself asked and because of my 5000cubic feet and vaulted ceiling they recommended my pairing with the pb16 ultra. It really adds a new dimension to films as now my chairs and floor literally shake horror movies and action movies are much more impactful now.
A tip if someone is going to get this set up
Set your sub to -30hz before calibration (seinheiser advised) or else your subs will be underpowered after mic calibration.
I've included a photo just to show I do indeed have this setup and have experience to speak on it