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Where to place 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=69904
Printed Date: May 14, 2025 at 1:15 AM


Topic: Where to place ports

Posted By: pimpedprobegt
Subject: Where to place ports
Date Posted: January 02, 2006 at 11:12 PM

I am building  a ported sub box for a MTX 5512.44 sub.  My design program says that  a 1.25 cubic ft box, with a 3.5" inside diameter port that is 20.5" long, the box will be tuned at 29.6 hz.  What i need to know is where do i place the port.  The only option is on the top of the box due to the design of the box to fit it in the vehicle.  Does it matter which side of the top I put it in or more towards the front or back?

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1997 Chevy K1500
Clarion VRX935VD
Power Accoustix 2.5 Farad Cap
MTX 81001
MTX Thunder 302 x2
Alpine SWE 12 x4
Blaupunkt highs



Replies:

Posted By: DYohn
Date Posted: January 03, 2006 at 10:14 AM
Ideally the port should be on the same baffle as the driver.

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