I have two seperate power amplifiers with 3 prong chords. When I connect the amp to the speakers I hear a noticable hum/buzz that comes through although when I play music at low volumes, its not ...
recently I bought receiver Onkyo TX-NR656. But after plugging the rec. to my system, it makes a humming sound on power up. I thought the problem would be with the speakers so after series of tries (un ...
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