ask a stereo place what my system should hit i have two diferent papers stating what decibal i hit clearly. wasnt a shitty cheaker and my systems not junk i just got it like that and know my shit and how to make it work good. just 1 of my subs should easily hit 155db's under powered in a sealed box. ill look for my papers and see if i still have them they were in my car when it was totaled but hopefuly i have them and ill post them.