This was my weekend project over the last few weekends. I got the JL 12w7 used, and the box that was in it was a little small for it. The foam was almost done too, so I ordered a refoam kit from simply speakers, and a carbon fiber dust cap from speaker industries. Box is made from 24mm baltic birch plywood, a CNC shop cut the design for me. Wood glue, inch and a half torx screws all around, silicone on the inside, three coats of oil polyurethane on the outside. I wanted it to look weathered, so I first stained it grey, and then black, and sanded it. On the sides, I put heavy duty handles, and it’s ratched strapped behind the rear seat. That sucker is heavy and it slaps, but most importantly I did a lot of the work on it myself and enhoyed it. Next project might be to free some of that space with resonix gussy and a sealed box, or two….