hey guys, heres the deal. im building a box for my 12 inch type r. its going to be 1.4275 ft^3 after displacement and i want it tuned to ~ 30 hz. when im typing in the information on a port calculator it tells me my slot port needs to be 47 inches long. i typed in 12.5 inches for the port height with a 2 inch width. What am i doing wrong here, that doesnt sound right?
my dimensions (external) are 14hx16wx18d.
If you can help me out here, it'd be appreciated. If any of you have a ported box you've made i'd appreciate the dimensions and how long your port is. i need them as soon as possible