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stish05
03-22-2005, 11:24 PM
if the manufacturer tells me to port the box with 4" x 16.75", can i shorten the length and still be ok, or should i stick to the man. specs?

BigPimpin18
03-27-2005, 12:51 PM
I would stick to the specs. because they built the sub and they know wuts best for the sub

SPL140.2
03-27-2005, 05:53 PM
if your shortening the length of the port it will change the frequency! ;)

DFW40
03-28-2005, 12:28 PM
You can shorten it or use pvc with the 90 degree bend (joint) to fit your needs. Look at the port calculator and you can see how the length changes the tuning freq.
http://media.doitbest.com/products/409820.gif
http://www.the12volt.com/caraudio/boxcalcs.asp#par