View Full Version : Please help with calculations

06-06-2009, 09:04 PM
I've been searching to find this but I can't figure it out. When calculating vent length, what do you use for Vb in the formula? The displacement with or without port displacement? If with, how do you know what to use for port displacement if you don't know the length?

Or do you use the displacement that you want?

06-07-2009, 02:15 AM
you use a good enclosure program thats accounts for port displacement lol
bassboxpro v6 for examlpe
shoot me what you got in a pm and i'll figure out all you #'s