does port have to be flush with sub box?

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=34096
Printed Date: May 19, 2025 at 2:59 PM

Topic: does port have to be flush with sub box?

Posted By: jaymes
Subject: does port have to be flush with sub box?
Date Posted: June 17, 2004 at 9:18 PM

hello i am building a custom system and fiberglassing a woofer enclosure and rear deck for 6X 9's

i was wondering about my ports, there supposed to be 4" wide and 8.35" long each. I want to run the ports though the rear deck and fiberglass them in beside the 6X9 speakers. Now does my port have to be flush with the sub box, or can it stick out of the box? will then length change if i do that.?? can this setup be accomplished?

Replies:

Posted By: CarAudioHelp
Date Posted: June 29, 2004 at 4:17 PM

Sure, that's possible but maybe not practical. The length will remain the same whether it is in the box or outside of the box. Just be sure to take into account the volume change in the enclosure. You'll have to make sure the enclosure doesn't move around in the trunk or the ports can end up snapping. The same goes for bumps. JL Audio makes the FlexPort which might eliminate the movement problem for you.

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