Thanks for the reply. I think I'll end up getting the PB12 over the VTF-15. I love that SVS has the trade up policy so if I am craving more slam in the future I'll upgrade to the Plus within a year. I think the "smaller" size of the PB12 will go over easier with my wife. She enjoys the effects but doesn't enjoy seeing a huge sub in the room. I don't have a huge room so I'm hoping one PB12 will be plenty. I'm coming from a small 10" BIC so anything will be a huge upgrade.