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sub enclosure, 2 orion hcca 15.2’s

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=107742
Printed Date: May 13, 2025 at 4:22 PM


Topic: sub enclosure, 2 orion hcca 15.2’s

Posted By: jameslopez1
Subject: sub enclosure, 2 orion hcca 15.2’s
Date Posted: September 27, 2008 at 12:43 AM

Hi, im building sub enclosure for 2 Orion hcca 15.2's, the website says that both subs should have 7 cubic feet....and tuned to 35 hertz i want to port it in the middle and i was wondering if someone could tell me the measurements i should make the port for both of the subs..

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Toker



Replies:

Posted By: DYohn
Date Posted: September 27, 2008 at 11:01 AM
7 cuft ported @ 35Hz?  6" diameter round port 4.5" long.   https://www.the12volt.com/caraudio/boxcalcs.asp

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Posted By: jameslopez1
Date Posted: September 27, 2008 at 2:51 PM
what about a square portposted_image

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Toker



Posted By: DYohn
Date Posted: September 27, 2008 at 5:06 PM
Same size.  6" port = 28.27 square inches of port area, so just make the opening equal to 28.27 sqin and the port length 4.5" long.  28.27 sqin = 2" X 14.135", for example.  Any geometry that equals the same opening area will do.

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