Get your head checked, what the poster said is very well possible.
I hit 106db on a pioneer sub powered with only 100w
I agree when saying 137db is nice for a 12" sub but definattly not impossible.
And yes, i would go with the wager //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
peace