Minimum polepiece vent clearance?

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=70233
Printed Date: May 19, 2024 at 8:22 AM

Topic: Minimum polepiece vent clearance?

Posted By: chrisandersen
Subject: Minimum polepiece vent clearance?
Date Posted: January 07, 2006 at 8:09 AM

Hello all,

I am designing an enclosure for a regular cab truck and planning to install a single Infinity Perfect 12.1 subwoofer. Can anyone tell me what an acceptable minimum clearance would be between the polepiece vent in the magnet and the back of the enclosure?

Thanks in advance.

Replies:

Posted By: geepherder
Date Posted: January 07, 2006 at 9:37 AM

If it's a square box- speaker baffle is parallel with the back wall, I'd say a 1/2 inch or so. If you're building a box to go behind the seat (wedge shape), then the slope of the woofer itself will be enough and the top of the magnet can touch the back wall.

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My ex once told me I have a perfect face for radio.

Posted By: Steven Kephart
Date Posted: January 07, 2006 at 9:37 AM

Generally you want at least 1/2" of clearance, 3/4" prefered.

Posted By: forbidden
Date Posted: January 07, 2006 at 12:43 PM

I prefer 3/4" at the absolute minimum. More would be better.

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Top Secret, I can tell you but then my wife will kill me.

Posted By: greg_jobes
Date Posted: January 07, 2006 at 5:14 PM

I've heard you want to have the width of the vent. So if the vent is 2" wide you want 2" of space.

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