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Old 03-20-2006, 07:34 PM   #1
Italianstallion
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sound ports?

well i made a 3 cubic ft box with a jl 12w16 in the back of my trunk... and since the seats dont fold down are there any ways to get the sound from the trunk through to the inside of the car?... also i hear if you put foam inside your box it makes the sub sound louder? is that true? and what kind of foam?

thanks alot filippo
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Old 03-20-2006, 08:01 PM   #2
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It'll get through.
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Old 03-20-2006, 11:09 PM   #3
Striker
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Originally Posted by 1BADRIDE
It'll get through.
Yup, for bass you want the trunk sealed, it will sound better. It's not a good idea to have the trunk vented into the car as well, just incase there was a leak, you can get carbon monoxide into your cabin.

Had a guy I know always complaining of headaches when driving and I discovered he had a trunk leaking fumes into his car.
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Old 03-21-2006, 02:12 AM   #4
Slowered318
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Originally Posted by Striker
Yup, for bass you want the trunk sealed, it will sound better. It's not a good idea to have the trunk vented into the car as well, just incase there was a leak, you can get carbon monoxide into your cabin.

Had a guy I know always complaining of headaches when driving and I discovered he had a trunk leaking fumes into his car.
Dead hooker fumes are no good either

You can swap your rear seat out for one with a ski boot.. but it's very difficult to build a correct "tuned" box that fired through the ski hole. It can be done though
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Old 03-21-2006, 12:14 PM   #5
Luke318is
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I have this problem as well...ive got 2 10's in my trunk. The differences ive noticed that are related to e30's having a metal plate seperating the trunk from rear seats are:

-more trunk rattling!
-must open windows for sound to really get into the cab
-WAY louder outside with trunk open(obviously), the steel plate DOES dampen the sound more than most cars do.



Id also like to find a way to let more sound into the cab of my car so it will stop rattling around all the shit in my trunk. its like putting a subwoofer in a lead box.
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