well 4 years being a sound off judge and 6 years installing and having owned and been many cars reaching over 150db's and still having near perfect hearing.
120 DB's in an open environment. is downright painful (i.e outdoor concert near the speakers) in a car it's easily tolerable. I'm sure you can find a bit of info by googling this or visiting other audio forums. I'm way too busy these days to look up fact sheets at this time.
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Donald Phillips
MECP Certified Installer first class
ooohhh I see,,,sorry to hold you up,,don't mean to take you away from your work,,,will get right on that google thing,,,,,,,,,,,,,,,,,, thanks
(I'd say the same thing if I was making a living outta selling radio eq,,, lol)
here is my previous setup's peak when I first started out, mind you this is 4 15" subwoofers, 6000 actual watts ( measured via a clamp meter and a DMM ) and a full blow through in my old nissan truck
On my old system i had 1 15 inch sony sub and hit at 140db's now i have a deck with a 12inch ev 2 3inch tweeter's 2 6x9's and a 15 inch alpine type r im hoping to be in the mid to high 140's now