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hatemonger
05-04-2008, 12:04 AM
doing a ported enclosure for a single 12. 2.5^3 tuned to 34hz. i'd like to use round ports made from 4 inch pvc. by my noobish calculations, it seems that i need 2 ports, 10.25 inches long if i use 4 inch pvc. i will account for port displacement. i am confused when calculating round ports.

hatemonger
05-04-2008, 01:12 AM
boom shaka laka!!!!!!!!!!!

hatemonger
05-05-2008, 06:00 PM
well. i built it with the 2 ports 10.25 inches long. seems to be fairly good. i can always build another if someone has some input.

miker
05-05-2008, 06:24 PM
I'm pretty sure you are way off on the length of those ports..

Like try doubling that ...

hatemonger
05-05-2008, 06:45 PM
http://www.psp-inc.com/

hatemonger
05-05-2008, 06:48 PM
i calculated 4 inch round in 2.5 cubes at 34 herz. 20.51. that means 10.25 per port, right? i'd like to know if i did this wrong.

miker
05-05-2008, 07:23 PM
i calculated 4 inch round in 2.5 cubes at 34 herz. 20.51. that means 10.25 per port, right? i'd like to know if i did this wrong.


Nuh.. That is 20.5" per port.. I was confused about this too, when I tried round ports.