if I get two of 8" subs inside of car and one 12" sub in the trunk?

I'll install one JL 12w7 in the trunk and think about putting 2 8" subs inside..

is that okay?? bad sound??

if not, what kinds subs should i get?? and.. how much??

and.. I don't know where to put them in..

what about back sits?? each window side..?(of course custom)

just let me know..what you think..

THanks..!!=)

 

Heres the problem with that. Every brand has a different frequency and every size creates a different size bass wave. By combining 3 different speakers you are going to get different peaks and lows and will create an undesirable sound. The different bass waves in the car may also start to cancel each other out, and create a constant rumble effect. If you are looking to rattle your car and make people notice you go ahead. If you are looking to have a great sounding stereo, buy an EQ and have the 8's be your mid bass and port the trunk into the cab of the car for your low freq bass. Go to a reputable shop and they will tell you the samething if they are not just trying to make a sale.