Here’s an old project from 2010. Took me a couple weeks of building after work. This was also before I had kids so I had a little more free time. Most of the build time was spent waiting for the PL Premium adhesive to cure. It takes a good 24 hours or so but it’s un breakable once cured.
I got many complaints from the neighbors about this sub, and I miss it dearly. I think we’ll have to document another build using one of these designs… Or maybe two.