Midwest Audio Fest

It’s that time audio enthusiasts! Registration for the 2019 Speaker Design Competition is now open! Visit for details and to list your speaker project. We are excited to see all returning participants, and look forward to meeting some new designers this year, as well! Be sure your plans include a visit to the Parts Express Tent Sale for the lowest prices of the year, and the Audio Swap Meet where you can buy and trade with other audio fans. We hope to see you this summer! Vivian and Jill
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How do I stop buzz from new LED lights?

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  • How do I stop buzz from new LED lights?

    IT's been a while since I've been around here -- life happens.

    But the good side of that is that I've just finished a 32' x 48' workshop and am moving into it so I can have room to find and finish some of my projects!

    Downside is that I bought 33 8' LED fixtures from a friend who got them direct from China. The shop is bright but the radios are now noisy -- bad 60 cycle buzz.

    Is there a filter that will take it out or am I stuck with music from a tablet, etc?

    (Not that getting "news" is of any interest these days ;) )

    Any suggestions, good experience with PE items?

  • #2
    I suspect the power source for the cheap lights are the source.
    a genuine industrial-grade RFI filter ( Corcom or Cornell-Dubilier ) might work.
    "Not a Speaker Designer - Not even on the Internet"
    “Pride is your greatest enemy, humility is your greatest friend.”
    "If the freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter."


    • #3
      LEDs can't cause noise. Bad ballasts can. I recently replaced all my florescent tubes with LED, and as the ballasts were all old style magnetic ballasts I replaced those with Robertson electronic ballasts. They haven't caused any noise. There's nothing special about the Robertson brand, any good quality ballast will do.