Craigsub,
Its nice to know that a $599.00 sub can keep up with a PB-13 Ultra---to a point. That last few Hz are oh so hard to achieve, and why, it just shakes everything, and you can't hear it.
I'll give her a good shake down, then after shes properly broken in, I'll pop in my Hsu Research CD, with all the cool bass tracks. Meter will be handy