The first time I clamped my 7.5k a few weeks ago, the subs were still stiff and I still got some big power. I re did the test today and got even bigger numbers.
Starting voltage for these tests was 16.5v dropping to 15.2v
30hz- 106v 86.3a= 9147watts @ 1.23 ohms
40hz- 113.8v 76.5a= 8705.7watts @ 1.49 ohms
48hz(my peak freq)- 115.7v 69.5a= 8041.15watts @ 1.66 ohms
I have heard rumors about this amp putting out even more power than this but that will be posted at a later date.