Box Size....
Thread Starter
Racer
Joined: Sep 2005
Posts: 281
Likes: 0
From: Bentonville AR
Box Size....
Quick question for the experts.....
When designing a ported box, how "exact" do the volume calculations need to be when determining port length????
I am very close(+/- .1 ft3), but given the shape of my box, I can not be excat.
Thanks in advance for your help
Mark......
When designing a ported box, how "exact" do the volume calculations need to be when determining port length????
I am very close(+/- .1 ft3), but given the shape of my box, I can not be excat.
Thanks in advance for your help
Mark......
Last edited by mredden05; Feb 26, 2008 at 10:52 PM.
Former Vendor
Joined: Nov 2007
Posts: 152
Likes: 0
From: Magnolia Texas
An airspace difference of .1 cu ft. in a small vented enclosure is very critical.... you technically would need to lengthen your port to compensate, but that is not recommended... you may be able to change your alignment if the sub you are using will work... assuming you have a sub that is perfect for this application (many are not). There are a few tricks for this application, but they are very sub-dependant.
more info. on your enclosure design will be needed for a better tech answer. If you bought your sub from a reputable manufacturer, their tech dept. can be good for the DIY.
more info. on your enclosure design will be needed for a better tech answer. If you bought your sub from a reputable manufacturer, their tech dept. can be good for the DIY.
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
you will change your tuning frequency. I would model it up both ways (approximation) using winisd and see if the response is acceptable.
also consider the airspace taken up by the port material, the port, and the sub.
also consider the airspace taken up by the port material, the port, and the sub.
