Need Help Glass or anyone else

 

Guttt
Unregistered guest
Hey man since nobody else will give me an answer Im sure you can. I dont know what my box will be tuned to and I was curious what it is. If its not tuned right, what should I do to fix it?

I have a JL 15w3

My box has internal dementions of 23.5 wide x 15.75 high x 16.5 deep. I have a 3" diam. circle port that is 11.25" long.

Im looking for deep bass that can be heard b/c I listen to alot of rap.

Thanks for the help, I've been searching for an answer for quite sometime.
 

Silver Member
Username: Tbolt

Collipark, GA

Post Number: 280
Registered: Dec-04
http://www.the12volt.com/caraudio/boxcalcs.asp
Should answer most of your ?
 

Gold Member
Username: Subfanatic

Ky

Post Number: 4427
Registered: Dec-04
your box is internally 3.53 cubic feet before displacement and i think your box is tuned to 20 hrtz, thats not good man
 

Guttt
Unregistered guest
alright guys....im confused....jl's site has dimentions and their box is slightly bigger and the port is 11.6 inches long.....why is mine so bad??? what should it be tuned to???
 

Gold Member
Username: Subfanatic

Ky

Post Number: 4436
Registered: Dec-04
i believe that jls site uses 2 of those ports, not one
 

Guttt
Unregistered guest
http://www.jlaudio.com/subwoofers/pdfs/15_18_W3_MAN.pdf


Only 1
 

Guttt
Unregistered guest
whats a good number to tune to...im going to have to cut this port way down right?
 

Gold Member
Username: Subfanatic

Ky

Post Number: 4440
Registered: Dec-04
you have almost a whole cubic feet more in your box
 

Guttt
Unregistered guest
no i dont...under ported encloser it says 3.5 cubic feet
 

Guttt
Unregistered guest
i still dont know what a good hertz to tune to would be?
 

Gold Member
Username: Subfanatic

Ky

Post Number: 4445
Registered: Dec-04
28
 

Gold Member
Username: Subfanatic

Ky

Post Number: 4446
Registered: Dec-04
lol below the boxes and stuff, read that paragraph, ok, your box is about 1 cubic foot more
 

Guttt
Unregistered guest
I dont know what the heell your talking about but i just called jl and they said my box is smaller than recomended size of 3.5 but i do need to put another port in and make it the same size of 11.25
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