ok, So,
Since there has been alot, a ton, a FUCK load of bull shit going on in the car audio world, I had to make an appointment with an IASCA judge Mike Jaffe, to have him meet me at my good friend Joe, Stereo Joe, car audio shop. We metered a 148.6 at 47hz. I am happy BUT.... there seem to be a problem with one of my amps, I accidently bumped the master/slave switch, now it has to be tweekd into a fixed position. I am not sure, but I think it was sending to much power to one of my subs. because I notice it was launching more than the other. Also seem I may have to go with one sub and a way smaller port to help create more back pressure. It already had 4 spiders, 2x2 , glued in pairs. With this much power, they may need way more stiffness.
So I plan to send the amp in for repair, and do some R/A with Soundstream regarding the spider and the extra stiffness.