View Full Version : port displacement help.
07-13-2005, 06:25 PM
ok im tryin to figure the port displacment out if you havnt noticed and i just wanted someone to check what i got...
port is 10''x10''x14.6'' with 3/4 mdf....i got a displacement of .9 '' is this correct if not plz show me the correct way to figure this out ...
07-13-2005, 06:47 PM
does it use a side of the box wall as one of the port chambers? if so, just do:
(port width + wood thickness) x (port height) x (port length - wood thickness) / 1728, and that will get you close enough.
however, this wont work with labrynth style ports.
07-13-2005, 07:03 PM
no it is not touching any walls...
07-14-2005, 04:15 PM
not even the top and bottom walls?
if it does use the top and bottom walls of the box, just do [port width + 2(wood thickness)] x (port length - woodthickness) x (port heigth) / 1728
if it doesnt use the top and bottom walls of the box, do [port width + 2(wood thickness)] x (port length - woodthickness) x [(port heigth) + 2(wood thickness)] /1728
07-14-2005, 04:20 PM
bro i told you i'd help, lol, the dimensions you gave me are huuuuuuuuge for 2 12s
it was more like 10 cubes, not 7.83
07-14-2005, 04:23 PM
.86 cubic feet of port... you are close enough
07-14-2005, 04:31 PM
sorry... after redoing i get .92...