I purchased my PB2+ about a month and a half ago I guess. I took it out of the box, put it in place, and fired it up. After some quick calibration, I put in some THX demos, LOTR, Minority Report, and the like. "Wow", I said - "that sounds really good!" However, the point of this post is this - there was a part of me that was almost feeling like - is this it? It's good - but it's not totally blowing me away. However, over the past couple weeks it has COMPLETELY blown me away, and I DON'T think that it "broke in" or that there was any major change in placement or calibration. I think that SVS subs (and other extremely high quality subs) have a sound that you almost have to get used to. When I say that, I mean that I was used to a boomy, loud, 10" sub before this one. It was constantly booming (distorting) and making noise. The PB2+ creates a low frequency sound that blends with my mains so nicely that you practically forget that it is on and you're thinking, "What's the deal, is this thing gonna start rockin or what?". However, when the CDA agents place the lid over the sock and press the detonation button, you VERY QUICKLY realize that your sub is a cut above the rest - and that is an understatement. It's really nice to invest in a product that keeps getting better and better the more you listen. This sub has COMPLETELY spoiled me - it adds SOOOO much to the listening experience! Did anyone else experience this as well? I could NOT be happier with my purchase! To all you brand new SVS owners - Time for some REAL bass - calibrate, and then listen, listen, listen! By the way - I just picked up Titan A.E. - this is a DO NOT MISS for bass freaks!!!! It knocked things off the counter in my bathroom down the hall! Edited to say that I should have called it a PB12-Plus/2. And also that I was PISSED that I missed the last AZ GTG! I would have LOVED to have been there!