Port Length

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mark241

Copper - Posts: 101

Joined: March 23, 2003

Posted: April 02, 2003 at 6:41 PM / IP Logged

Does anyone have somesort of chart that allows you to find the port length of a box with port width, volume, tuning frequency, and driver size?

(other than the one on this site)

wrencher_25

Copper - Posts: 101

Joined: March 23, 2003

Location: Canada

Posted: April 02, 2003 at 7:26 PM / IP Logged

I don't know of any chart like that....but if you're looking to design a port, i'm going through my grad book from Mobile Dynamics in Toronto. (I gotta keep up to date too!!! Port Length -- posted image. ) And i'll give you some of the things that we learned and they told me from my notes. (They're just small pointers when designing a ported box).

-In a vented box, the port length shouldn't be more that 4x it's diameter.

(DON'T USE AS A RULE BUT IN GENERAL......) >>>>

8" = 1-2" in diameter

10" = 2-3" in diameter

12" = 3-4" in diameter

15" = 4-8" in diameter

-I'm guessing that you wanted the chart to aviod formulas...but if you just hate math or anything like that I could help you out on them or do em for ya if you wanted. Just give me the specs that I need from the type of driver you are using. Hope that helped a bit....

Andrew Weitzel

MECP First Class Installer

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: April 02, 2003 at 10:33 PM / IP Logged

https://www.the12volt.com/caraudio/boxcalcs.asp

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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Port Length

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