Subwoofer produces static sound
Hello,
for some reason my subwoofer(JBL 138) started producing static sound when it is not plugged in. I just brought it down, and it worked for the first day, then it started creating a fairly loud static. The subwoofer still works fine when plugged in(LFE) however at low volumes it is very discernible. I've tried different electrical sockets, all producing the same static. I've mostly run out of ideas to fix it, it does feel unlikely that it suddenly produced an error inside the actual subwoofer, however not impossible. What might be the cause of the issue?
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