Well, just to update, I went over to wobbly woofers and had them "tune" my amps (which they did by turning my gain from less than 1/2 way to 3/4.....so at 1/2 volume I was at 10v), so I was like whatever, they know what they are doing.....(I hope), and i asked to get metered on their tl. With the mic in the kick and my door open, I did 142.8 @ 30hz, with the volume 1/2 way and at 12.2v Needless to say, after I left, I went back and adjusted it the way I had it, which is louder and sounds better to me and I can turn up the volume to about 3/4 and still have 13.5v banging. I love these woofers, so crisp, clean and immense output! I wish I had more SSA products. I'm going to try and get some more videos of them sometime soon