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View Full Version : Lowering Tuning of a Box



kronik
03-14-2005, 01:48 AM
I already built a box to the specs on RE's webpage..

Anyways, it should be tuned to 35. Is there a way I can just add a small piece of MDF and lower the tuning to 29-32 Hz? I know all you have to do is extend the port (at least that's what I believe I read) but the question is how much?

bcarpenterfhl
03-14-2005, 02:18 AM
you need to use a port calculator.

HAVINGFUN
03-14-2005, 03:45 PM
you can do this as long as you know your true box volume. Remember that adding to the port decreases the overall net box volume etc

http://www.the12volt.com/caraudio/boxcalcs.asp#par

Nikuk
03-14-2005, 04:37 PM
cut down the port area, keep the tuning length the same.

-or-

'extend' the port, but it's gonna be hella long, sacrifice alotta vB.

-Nick