Custom Fiberglass sub Box with 3 subs

Custom fiberglass sub box for 3 12-inch subwoofers. I didn't make the box, I just bought it and i just added my subs. I never had any issues with the box or with the subwoofers. With my 3 rockford fosgate p3s to say that it bumped hard is an understatement. And that's with all 3 subs being underpowered. P3 subs are dual 4 ohm. They are wired in parallel/ parallel down to 2.67 ohms. If you don't know if your amp can handle that, you can rewire them to handle a 6 ohm load. The box is light, but with subs, it is heavy. The measurements of the enclosure are about 36 inches wide, 16 inches deep n 16 inches tall. Any questions just ask.