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Discussion in 'Archived Threads 2001-2004' started by Sebastian, May 5, 2002.
Is it HxWxD? or is that surface area?
it is HxWxD, which would be in feet cubed.
Surface area is feet squared and is only the are of a side
Don't forget to account for the thickness of the walls, any bracing and any volume displaced by the driver and port if present.
Of course, you have to use the interior H x W x D dimensions, or else subtract the wall thickness from the exterior measurement.
If you are measuring in inches, divide the total cubic inches by 1728 to get the number in cubic ft.:
22” x 18” x 16” = 6336 cu. in.
6336 ÷ 1728 = 3.6 cu. ft.
As Dustin mentioned, you have to subtract the displacement of any braces from that figure (using the same method). Not sure how to figure the displacement of the driver – perhaps the manufacturer could tell you that.
Wayne A. Pflughaupt
You don't have to be that precise with the driver if you are reasonably precise with the rest. Use 5L for a 15" driver and 3L for a 12" driver. Should be close enough.
Yeah that is what I thought. I think I may have had square feet confused with Cubit feet.