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goindef
07-07-2011, 04:37 PM
I'm trying to build a ported box for an RE *** and i have the specs but i was wondering does it want the box to be 2cu ft after port and sub displacement or before. So the question is, is that the gross internal volume or the net volume. I was also wondering if all manufacturers give their specs like this.

Buck
07-07-2011, 04:39 PM
2 cubes is net. This is the cubic feet you have internally after all port, sub, bracing displacements.

In other words, 2 cubes is how much your sub has to use for itself. If that makes sense.

goindef
07-07-2011, 04:47 PM
Ok thanks, my other question is do all manufacturers use net volume?

pro-rabbit
07-07-2011, 04:50 PM
Yes. Any recommendation from a manufacturer or any professional builder/designer would be "net" volume. Some companies to offer more in-depth enclosure information but most do not.

goindef
07-07-2011, 04:51 PM
ok thanks for the help

Buck
07-07-2011, 04:52 PM
Yes. Any recommendation from a manufacturer or any professional builder/designer would be "net" volume. Some companies to offer more in-depth enclosure information but most do not.

I agree.