I currently have a SVS 16-46 PC-Plus. I am looking to upgrade my system and was thinking about getting a PB12+2. The question I have is, does the fact that the PB12+2 has dual woofers end up with a similar result as having two separate subwoofers? Does it even out room response with the two woofers? Or would I achieve better performance with having two completely separate subwoofers? Thanks!