This is not a new idea, just my version of a diy on this passive acoustic speaker (PAS) for Kindle Fire or other mobile device with built in speakers. I was so stoked to get on this project that I did not take real-time step-by-step pictures of the process. Rather, I will show pictures of the finished PAS as I describe the construction process.
My goal was to have an attractive, portable, and functional form of acoustic amplification for my Kindle Fire. The result was a decorative piece that fits in with our design and offered a more detailed and dynamic sound for our listening pleasure. Enjoy!
The first step was to select a piece of walnut wood with the dimensions of 5 1/4 " x 5 1/4 " x 1 3/4" thick. I chose walnut because of it's density and reflective qualities when it comes to sound reproduction. I also like the look of the grain and figure.
The next step was to rout the bottom of the PAS to a depth of 5/16". I left a 3/4" wide swath on the front and back edge to be used as the legs of the speaker.
Step 3 was the routing of the Kindle Fire channel in the top of the PAS. I made this slightly wider than the mobile device and routed to a depth of 9/16", just deep enough for solid support of the Kindle Fire. After that I drilled holes in the channel through the base of the PAS to line up with the speakers on the device. I then gouged the holes into a rectangular port to fit the dimension of the built in speakers.