port nois need help

[brmcdonald68s]

i made a box for my 15L7 and the other day i decided to port it i put a 9 inch long 4 in. round port in it and it has alot of noise once it is turned up. i used a few different programs to get the size and length of the port. but how do i lessen the noise.

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[BASSMEKANIK 10+ year member]

slot port or aero-port...

 

[dleccord 5,000+ posts]

i made a box for my 15L7 and the other day i decided to port it i put a 9 inch long 4 in. round port in it and it has alot of noise once it is turned up. i used a few different programs to get the size and length of the port. but how do i lessen the noise.

go with a 6inch round port for the 15, or shorten the port.

slot port or aero-port...

he said round but who knows whether aero or pvc.

 

[brmcdonald68s]

its a pvc port. i dont know what an aero port is.

 

[moorezy 10+ year member]

aero port is flared on both sides?

 

[SPL Blazer 10+ year member]

unless you round the port edges or use an aero port you won't get rid of the noise.

check out http://www.psp-inc.com