18" Xcon enclosure and sub dimension

[explosivesound 1]

Im planning to do a wall in my car but my wife says I have to wait until we have another car (we have kids.) In the meantime I have dimensions of 33Dx31Wx16H. With .75 MDF that leaves 7.79783 cubes total. I want to run one Xcon 18 but I dont know what the mounting depth is. Obvioussly Ill be mounting it sub up so my D will become 16". I assume 16" is deep enough but? After port and sub displacement I should have about 7 cubes and want to tune to 32hz. is 7 cubes at 32HZ. too much for 1 Xcon18?

[mikey5472 16]

Im planning to do a wall in my car but my wife says I have to wait until we have another car (we have kids.) In the meantime I have dimensions of 33Dx31Wx16H. With .75 MDF that leaves 7.79783 cubes total. I want to run one Xcon 18 but I dont know what the mounting depth is. Obvioussly Ill be mounting it sub up so my D will become 16". I assume 16" is deep enough but? After port and sub displacement I should have about 7 cubes and want to tune to 32hz. is 7 cubes at 32HZ. too much for 1 Xcon18?

I have built 2 boxes for my xcon thus far. 1 7.3 cuft@30hz the other 6.9cuft@32hz. I think it performs well in both. Make sure you have plenty of port area.

[explosivesound 1]

Wow, I didnt realize how much volume the port takes up. I used RE's box calculator and the port brings me down to 5.97 cubes. They also dont include sub displacement. Is there another good calculator that includes displacement. I found one but the port calc. was rediculous. It said 28in.^2 would give me a 30hz. tuning. R.E.'s calc showed 87in.^2 which I know is correct but like I said every calc. is done not including sub displacement and I would like to be dead on precise with a ported box! http://www.bcae1.com/spboxnew2.htm This is the link to the calc. that showed the 28in^2 for the port which is rediculous. Its not even close!

Edited June 19, 2009 by explosivesound

[mikey5472 16]

Wow, I didnt realize how much volume the port takes up. I used RE's box calculator and the port brings me down to 5.97 cubes. They also dont include sub displacement. Is there another good calculator that includes displacement. I found one but the port calc. was rediculous. It said 28in.^2 would give me a 30hz. tuning. R.E.'s calc showed 87in.^2 which I know is correct but like I said every calc. is done not including sub displacement and I would like to be dead on precise with a ported box! http://www.bcae1.com/spboxnew2.htm This is the link to the calc. that showed the 28in^2 for the port which is rediculous. Its not even close!

I usually just try to calculate in there is a formula, but I can't remember it off the top of my head.