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120hz hum

  1. Donal64

    Yamaha RX-V1400 Speaker hum

    Haven't used this receiver a whole lot. I had noticed a hum from the speakers a while back, and thought I had got rid of it, or maybe I just forgot about it. Anyway , I noticed it again recently. The hum is what appears to be a 120hz hum, and is from the speakers only. It is from all the...
    • Donal64
    • Thread
    • 120hz hum rx-v 1400 speaker hum yamaha
    • Replies: 2
    • Forum: Yamaha
  2. C

    Bay Audio Sub

    I have a Bay Audio sub-woofer that developed 120Hz hum when plugged in but not turned on. When it is turned on a loud 60Hz sound is heard. I'm thinking power supply caps. Anyone have thoughts or suggestion on trouble shooting this problem? Thanks, Chuck
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