ive been shocked myself wit sum subs. i had 2 boss subs, crappy *** subs i would say. i hooked them up and they were crap. didnt play loud at all and quality was worse then a blown speaker. then i gave them to my friend to put in his car and let me tell u, for sum odd reason, it was loud as aaaallll hhheeeellllllll. def sounded like a good 140-145 db range.