Finally, Finished

After months of paint frustration and poor design planning (I glued in the internal bracing before I installed the individual drivers, making what should have been a simple step a contortion act), my most recent speaker project is done.  This pair took longer than all the other speakers I have built, combined.  So they better sound good.  Here is one (from the back) just before I added the last bit of acoustic poly-fill stuffing and buttoned up the back.


Yes, all those drivers on the left had to be installed reaching through those small holes in the bracing.  Ugh.  Anyway, after I took this picture, I had one more -- appropriate for this project -- negative surprise when the fit on the port on the back was not quite right and a lot of filing and trimming was needed for the usually simple task of installing the back cover.  Right now the speakers are breaking in and then I need to do testing and gain adjustments (I am using an electronic crossover with parametric equalization I built from a miniDSP kit).

The original article on the theory of the design is here.  I will post final pictures soon -- they do look simply awesome, though I will say again that life is too short to put a gloss piano black finish on mdf, but I am glad I did it now that all the work is done.   Not sure what I will be doing with my weekends going forward.

As an aside, I am not moving -- on his way to his first apartment, my son claimed a couple of my old bookshelves, leaving me with packing boxes of my books on the floor.  There is a bit of a story on his whole job search:  For months of his senior year he kept telling us he turned down such and such job in Boston or New York.  He didn't want to work in the northeast and didn't want to be an investment banker, eliminating about 95% of the companies that come to the small Amherst College campus.  However, with some persistence, he landed a job with craft brewer Ballast Point in San Diego.  So after all my parental angst about his future, when I tried to lecture him on how to do a job search, he ended up working for a beer company in Southern California.  Compare that to my first job, working in an oil refinery in Baytown, Texas.  So I suppose he wins job search.

  • caolson

    Your son is graduating already? I swear you were just taking him around to schools last fall... or maybe the one before that... or... man... I'm getting so old...

  • Andew Hillenburg

    I've actually worked with the inventor the past few years 3D printing prototypes for him. Interesting fellow, I forwarded your original article to him and he was impressed with your build. I hope it turns out well for you.