12's or 15's

[badguydotnet 10+ year member]

which ones or better i have 15's in my trunk and really not happy wit them seem like they should be hitting hard than they are and i hear that 15's are good but when i hook my friends 12's up both 15's and 12's are kickers the 12 hit harder i think i might get four 12's

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[99grandprixGT 5,000+ posts]

what kind of box they in? and what 12s and amp does ur friend got.

 

[badguydotnet 10+ year member]

my friend has a ported box and a sony xplod 1000 watt amp when i hooked it up it was on my amp