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Please help! -port problem

 

Bronze Member
Username: Thumprms

DaltonUSA

Post Number: 29
Registered: May-04
my sub needs a port thats 4 inches in diameter and 10.75 in long. i cannot find a port this long
can i use two 4 x 5 in ports to get the same effect?
if not is there a web site that sells ports this length?
 

Gold Member
Username: Jonathan_f

GA USA

Post Number: 2293
Registered: May-04
No you cant use two ports. That'll actually raise the tuning, tuning depends on the friction of the ports surface area, obviously w/ two ports and less length, friction will be much less. Anyway, you have to get PVC pipe and cut it to the length you want.
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