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  1. kjello

    How to fix transformer noise

    Hi I have a small problem with my subwoofer amplifier. Its a Zachry DSW-400 mono plate amplifier The problem is noise, which I belive comes from the transformer. When I turn the power on, the noise is audible, and when the speaker relay switches on the noise gets amplified through the woofer...
    • kjello
    • Thread
    • amplifier hum noise subwoofer transformer zachry
    • Replies: 19
    • Forum: DIY
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