Well don't get me wrong, the bass quality is significantly better.. the output though, I'm concerned by. I think mine may have a problem or something with the amp.
I'll keep you guys posted after I talk to SVS today to figure things out!
Btw, the phase is at 0, and it has been. And, I re-ran the test tones at 75% gain on both the PB-1000 and PB-2000 a little more carefully, and actually, the PB-1000 was at 92db and the PB-2000 at 82db! That's a whopping 10db difference! And assuming the gain must be set up differently like you guys suggested, I tried maxing the gain on the PB-2000, and it only reached 88-90db.
This is kind of frustrating.. it's just not loud enough..