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AKG P820 Tube Large-diaphragm Condenser Mic from Amazon

I bought this mic from Amazon Dec 2, 2018 and it is now March and starting to notice 60 to 70Hz hum. This just started. I've used it in the same location since I set it up and now I'm getting this noise. It was very quiet when first used it. I also noticed a lot of people who also bought this mic complaining of the same thing. Most as soon as they started using it. Any help with this or how I can get it repaired?


  • Also, what is the warranty on this mic?

  • HARMAN_RobHARMAN_Rob Posts: 230

    I'd recommend a call to HARMAN Pro Tech Support. Or contact your Amazon seller and ask what their policy is.

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