can someone tell me how long i should make each of my four 3inch ports if my box dimensions are (L,24")(W17")(H12") thnx ahead //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Ok, you have a total of 2.83 cubes worth of airspace before any displacements. I dont know exactly what your subs displace nor your port, or even if you will be using any internal bracings that might affect loss of airspace, but this is what i came up with.......
No displacements accounted for what so ever and using 2.83 as total amount of airspace = 19.79inches long
Using 2.5 cubes are your airspace (trying to account for any displacement you might have) it would be 22.69inches long
Now im no professional installer or i dont build boxes as my source of income, so if anyone see a problem with my calculations, then feel free to address it. Im just trying to help out. But i will put the figures in Bass Box Pro 6 and see if they differ than audiobahns website
whoa, hold up. i might have made a mistake.....are those dimensions inner or outer? Im assuming outer dimensions were given....you have a total of 2.119 cubes of airspace to work with.
No displacements accounted for...... it would be 27.16 inches long.....
(before i forgot to account for wood displacement) but then again, i did say before any displacements)
according to audiobahns website.....unless you are suppose to divide that by the number of ports you have, but it doesnt say to do all that, so i take it as each one being that size