Chrisku13 10+ year member
Member
Ok, I'm having troubles with the whole ported box concept. Maybe I just haven't seen enough good pictures, but some things still confuse me. I'm trying to build a ported box tuned to 32 hz pretty soon, and was trying to find the dimensions of my port using an applet on bcae1.com. I have posted a very crude picture depicting what I found in the program's output. What I don't get is why my side lengths change for the square port when I enter a different diameter into the program (I put 3", and it gives me these sides, but when I put 2", it will give me smaller sides and a shorter length). I don't even know how the diameter applies to the square port, because isn't that for the round port? Aren't all sides going to be 2.659"? At this point, I've searched all over the forum and still can't find some of these answers. Is my drawing of the different ports accurate? I know round ports, but is the square port basically the same, but with a square instead of a circle? Could I use the walls of the enclosure for those two sides? And also, I don't believe the program tells me how to make a slot port. If I keep the length of the port the same, but make it taller to look like the slot port I drew, I know I would mess with the volume, but would that change the tuning? Is it the length or the volume that does this? Sorry for all of the questions, I hope someone can make sense of all this and help out.