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This is the prototype for a plasma arc speaker kit. Apparently it uses 60,000 volts to generate the arc and sound. If a kit does get released, put me on the list!

Read more about Plasma arc loud speakers

Marc de Vinck

I’m currently working full time as the Dexter F. Baker Professor of Practice in Creativity in the Masters of Engineering in Technical Entrepreneurship Program at Lehigh University. I’m also an avid product designer, kit maker, author, father, tinkerer, and member of the MAKE Technical Advisory board.



  1. moolc says:

    saying fm modulated is redundant.

    1. Marc de Vinck says:


      Ha,ha,ha so true…..

  2. Matt R says:

    I would love to see the schematics for this.

  3. Gav says:

    Very nice.

    I will point out though that this is more than just a light/sound show. In addition to the sound and lightning, you probably get synchronized bursts of X-rays too….

    1. Marc de Vinck says:


      Don’t forget about the Ozone too!

  4. derek says:

    I saw an article about this a long while back (60′s) using an oxy fuel flame doped with sodium. Couple the audio to a high voltage source via a transformer.

  5. jammit says:

    Do a search for “ionovac speakers”. They used a plasma modulated with audio.

    1. Marc de Vinck says:


      Thanks for the info. They do seem to produce ozone and should be used in a well ventilated area. At least that’s what I found.

  6. Anonymous says:

    This should really be demo’d with AC/DC’s High Voltage, instead. :)

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