Question No sound from subwoofer

Feb 19, 2019
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I have a PSB subsonic 6i active subwoofer but experiencing some issues... When I plug in the RCA cables from my receiver into the input of the subwoofer no sound is heard, the subwoofer is powered and on, when I wiggle the RCA cables it makes a buzz sound upon movement or when I insert one RCA halfway it makes a buzz sound but when all the way In NOTHING. It's frustrating because I thought it was my cables and bought new ones, which it wasn't, I hope someone can give me some advice on troubleshooting or fault finding on this issue