i have learned something new today that i found was quite interesting and i would have never thought that it was true. (i will go with the good old "did you know..." format)
Did you know that to make the ground pounding sound(haha, unintended rhyme), an average 12" sub emits a 6-8' tall sound wave. i dont know about any of you... but 8' is pretty f@#%ing big. and the wave doesnt stop when it reaches your body, it just goes right straight through it. if the noise becomes loud enough, it will litteraly make your eardrums bleed. now you know why when you are sitting in your car, blasting your 12" sub, your earwax seems to be melting right out of your head.
gotta love the information that you can learn in science