well, i can tell you for sure that the PB-1000 will not fill that room of yours. Yes you will have bass in your movies, but you will just throw money. If you consider 2 PB-1000, then MAYBE. But even then, you will need calibration, mics, configurations and so on.
PS.... i am jealous of the room. great looking home-theater.
In other news....
i tested my Auralex Gramma this weekend. There are good news and bad news. The good news is that is some-how 'cleaned' the sub noise. You can't really understand that the sub is playing now. It just vanishes. The only way that i know the sub is there working, is by the air coming to my feet every now and then from the driver pushing air (it is kinda annoying).
the bad news... i lost the great effect of vibration on my floor. When the big robot at Terminator salvation moved in the desert, i could feel its steps through my room (it was nice), but now.... NOTHING! i can't feel it anymore. I know that this shows how good work the Auralex does to wooden floors, but i really miss that
Good News 2... It works great if you need to protect your sub from the floor, office chairs, vacuums.
Bad News 2... Does it worth it's money for someone with tiles on his floor? Well i payed 70 euros for this. The answer is.... hell No...
Just my 2 cents