do i include the port in the box size?

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=113348
Printed Date: May 12, 2025 at 1:58 PM

Topic: do i include the port in the box size?

Posted By: snhtown
Subject: do i include the port in the box size?
Date Posted: April 22, 2009 at 6:13 PM

hey im building box and im not sure if the port is included in the total box size. i have one 12 inch L7. im building it per kickers spects at 3.25 cf. now i calculated the port taking .33 cf of airspace. so should i build the box at 3.25 + .33 = 3.57 cf or is the port airspace already accounted for so i should build the box 3.25cf. how big shoud i build the box? 3.57 cf or 3.25cf. thanks

Replies:

Posted By: DYohn
Date Posted: April 22, 2009 at 11:05 PM

Yes, include the displacement of the port and your bracing (and the woofer) if you want the enclosure size to be correct.

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