View Full Version : Need Help, 15" Q

09-05-2007, 04:22 PM
Im under space constraints..I'm making the heigh only 15.5", and going to have a chamfer on the top and bottom panel around where the sub is, thus allowing it to fit. I have figured that i can go with a depth of 22" and a width of 32". I figured out using the RE website taht the volume would be 3.788 ft^3 with a Freq of 29.68.

http://img235.imageshack.us/img235/929/subboxya9.th.jpg (http://img235.imageshack.us/my.php?image=subboxya9.jpg)


H - 15.5"
W - 22"
D - 32"
Vol - 3.788 (3.6 after displacement)
Freq - 29.68

Port width - 4"
Port Length - 15"
Total port lenght - 39"

Is this looking good? The site says 2.8-4cu ft and 28-33Hz. My main concern was the phase of the box...I was told the phase was going to be a little off...

09-05-2007, 05:54 PM
I know other programs get different results...was hopein for some confirmation....

anyways, bump.

09-06-2007, 01:23 AM
i guess a "yes, it looks good" is hard :suicide:


09-06-2007, 10:10 AM
If you knew that program could be off, why did you use it? WinISD is free and takes 3 seconds to download.

I can't check for you at work but I think it looks good. The dimensions are very close to my Fi Q 15 box which is 3.5 cubic feet at 33hz.

Also the inner diameter on a 15'' Fi Q is 14 1/8'' so make sure you build your box in a way that you have the full 15.5'' of height on the front panel.