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rear deck ports

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=105669
Printed Date: April 24, 2024 at 5:07 PM


Topic: rear deck ports

Posted By: tschicky
Subject: rear deck ports
Date Posted: June 24, 2008 at 8:43 PM

So I have a typical sedan that has had a decent stereo installed into it. What can I expect from placing ports into the back deck. Will it increase the bass in the cabin or just make it muddy and sloppy? Will the ports act as a ported box and create port noise if I do not calculate them properly?
Also what is the easiest way to isolate the high's/mid's. They are currently built into the back deck and alot of sound is lost into the trunk. Is there a product that fits around them, or should I fabricate my own?
Thanks for the help guys.



Replies:

Posted By: sedate
Date Posted: June 24, 2008 at 9:43 PM

No they won't act as tuned ports - unless you make them really long and restrictive or something.

But this tends to let in alot of trunk-lid rattle and never seems to add much SPL - nevermind it rarely looks decent.

The rear speakers aren't "losing" sound into the rear trunk - this is just how speakers work.  Sound emenates off the rear of the cone as well.

You could get something like this but I think they make infinite-baffle (that is to say, car stereo) speakers sound terrible:

https://www.partsexpress.com/webpage.cfm?FILTER=XTC&FTR=XTC&search_type=main&WebPage_ID=3

I wouldn't bother enclosing the speakers or porting the rear deck.



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Posted By: jar754
Date Posted: June 25, 2008 at 12:39 AM
go with a bandpass box ported thru the rear deck




Posted By: mcben789
Date Posted: June 26, 2008 at 12:58 AM
I always hear to put the port on the same side of the box that the sub is mounted--on the same baffle i think. So when I see pictures of people with subs facing to the back of the vehicle and a port somehow running up to the rear deck I always wonder if its wrong.

It sounds like too much trouble for not-that-great results. (besides saying to your friends, "hey i have ports coming inside the cabin of my car.")

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Posted By: jar754
Date Posted: June 26, 2008 at 5:52 AM
i used to have 2 jlw4 d4 in a bandpass ported the the rear deck of a 98 cav z24 and it friggen pounded, smooth clean bass!




Posted By: DYohn
Date Posted: June 26, 2008 at 9:57 AM
Placing a subwoofer system in a trunk and openings into the cabin can indeed turn your entire vehicle into a bandpass enclosure.  Not recommended

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