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ac hum

  1. 0kazaki101

    Audio Hum out of only Right Channel of System

    I recently got a hold of a cheap beFree Sound BFS-440 5.1 Channel Surround Bluetooth Speaker System. After a few weeks of the unit working completely fine, there came a day where an audible 60hz hum started coming out of both right speakers (front and back). The first day it started, it wasn't...
    • 0kazaki101
    • Thread
    • 60hz hum ac hum cheap speaker system hum hum in right channel transformer hum
    • Replies: 5
    • Forum: DIY
  2. QSilver

    Pioneer A-8 hot transformer and humming.

    I got one of these a few months ago but only just got into using it this week but I've noticed that the transformer does hum noticeably and gets quite hot. Even when idling. Is this anything to worry about? The hum is from the transformer itself rather than the amp.
    • QSilver
    • Thread
    • 50hz a-8 a-9 ac hum hot hum humming mains hum pioneer transformer
    • Replies: 93
    • Forum: Solid State
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