• Item: DIY planar magnetic and open baffle woofer towers  
  • Type: dipole speakers  
  • Posted: 23 April 2017  
  • Builder: Few  
  • Country: United States  
  • Comments: 4  

DIY planar magnetic and open baffle woofer towers

The midrange/tweeter towers each comprise four DIY planar magnetic drivers. The tweeter conductor is centered between the midrange conductors in a horizontal MTM arrangement. Each planar was made with 13 micron kapton tape attached to stretch-wrap surrounds. The conductive trace is 10 micron aluminum foil cut with a Silhouette computer-controlled cutter. NdFeB magnets are glued to perforated steel sheets to provide a single-sided magnet structure.

The woofers are Dayton Reference Series 8" drivers. The towers' front baffles were made from kerfed MDF wrapped in fiberglass. The rear spine was made with laminated spruce, and half of a PVC pipe (to form the rear curve) all wrapped in fiberglass.


  • mwmkravchenko
  • 24 April 2017 at 07:35AM
  • Beautiful combination of form function and good old materials engineering.

    Hoping you many years of listening.
  • jorgep
  • 24 April 2017 at 08:23AM
  • more pics and detail, please
  • jorgep
  • 24 April 2017 at 08:23AM
  • extraordinary
  • Few
  • 25 April 2017 at 11:21AM
  • Thanks for the kind words. For some more details on construction and measurements, and some more photos, you can take a look at the thread on diyaudio:


    I'm a newb on this site and only saw capacity for five photos when I posted the project.

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