OK. I’ve read a lot on sealed vs ported and understand the basics of why ported is more efficient. But given the footprints I’m at a toss up. My room is approx 40’ x 23’ with 8’ ceiling. I’m looking at SVS PB 2000 Pro vs SB 4000. (Both would be dual). The SB has larger driver and bigger amp. I wish I could go listen, but not much open right now. Thoughts?