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TrlcKed_OuT
07-13-2005, 05:25 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 ...

bcarpenterfhl
07-13-2005, 05:47 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.

TrlcKed_OuT
07-13-2005, 06:03 PM
no it is not touching any walls...

bcarpenterfhl
07-14-2005, 03:15 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

psych0ticnemes1
07-14-2005, 03:20 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

psych0ticnemes1
07-14-2005, 03:23 PM
.86 cubic feet of port... you are close enough

psych0ticnemes1
07-14-2005, 03:31 PM
sorry... after redoing i get .92...