This is my first sub build, so first I would like to thank everyone for the help and for posting your builds for good ideas and inspiration. I have a fairly small area to fill (13' x 17' x 8'), so I started with a Dayton Audio 15" classic powered by an i-Nuke 1000 with DSP, but I made the port in the box large enough for a 15" ultimax if I ever feel the need to upgrade. The box is tuned to 18Hz and is around 11 cubic feet. I modeled everything in Unigraphics (I am a tool and die designer), and I used my Brother's shop to build everything. Everything is screwed together with deck screws (tempered, so they will bend and not break) and Tighbond III wood glue. The box is internally braced with 1 1/4" dowels which are glued and screwed through the ends. You can see in the diagram below how I combated the issue of speaker wire rattling around in the box by hanging the wire from the inside with a long rubberband. The top is made of glued 2x4's which were planed, sanded, and then hit with a steel wire brush to scrape out the soft sections. This gives it texture and allows the stain to soak into the soft areas much better than the hard areas not effected by the wire brush. This makes the soft areas much darker than the hard grains of the wood and gives it a unique, high-contrast look. It is stained with grey/barnwood stain and clear coated with satin poly. The table top is roughly 62" x 23" so I wanted it to be able to be used to actually set decorations on. This is a bit of a problem when playing at high levels, so I used window gel cling decorations as a vibration dampener with pretty impressive results. The top essentially just floats on the gel pads and soaks up almost all of the vibration. Overall, I kept thinking that I should have just spent the extra $100 and got the Ultimax, but I have never watched a movie and thought that I needed more bass. In fact, I usually find myself turning the amp down part way into a movie. The bass is much lower and accurate than I have ever experienced. I knew it would sound good from everything I have read, but I was really blown away. Overall, I am very happy that i went the route of building my own sub...thanks again. Please let me know what you think
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