Well my stellar, PSB Subsonic subwoofer just quit on me. It has done it's duty and has given me 7 years of pure thunderous bass and enjoyment. But now I have an excuse to try one of these SVS subs that everyone has raved about for years. I want your guys opinions. I am ready to make the purchase but want to know if the extra $300 is worth it to upgrade to the PB2, or will the PB1 meet all my needs? I have a large room with vaulted ceilings. I was running my PSB in a dual sub configuration. I have an AAD C-10 that the SVS will be joining. I will corner load the AAD and put the SVS where the AAD was, up in front to the right of my tower speaker. So with this setup do you think that the PB1 or PB2 will work best? Thanks!