Why does my home subwoofer hum when power and RCA is connected? If I disconnect the RCA, it stops. How do I fix it? - Quora
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amplifier - Connected my audio input to two music systems by splitting the input, but the one with subwoofer produces continuous 100Hz hum - Electrical Engineering Stack Exchange
What will power my subwoofer with a built-in amplifier that has an input rating of 90v-240v? - Quora
Why does my home subwoofer hum when power and RCA is connected? If I disconnect the RCA, it stops. How do I fix it? - Quora
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Subwoofer has humming sound whenever pluged in and the problem has been oersiestend and i wanted to ask if you think that the ground pin missing could be the problem : r/hometheater
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