So this weekend I made a box for my 12" ultimax subwoofer. I made some pictures along the way and thought some people may like to see it and also give me some tips for my next build!
The volume of the box is 80758cm3 (2.851942 cubic feet) with a slotted port of 36 x 6cm and a length of 104 cm.
The tuning frequency of the box is 26hz, but probably more as I added some bracing (was not in original desing) and I forgot to add in the volume of the driver.
This tuning frequency is more aimed at listening to music, but I wanted it to be nice for movies too so I made it a little lower.
The sketchup model:
Added some bracing just to be sure......:
And it's in my room!:
I added the plans in the attachments if anyone is interested.