Loud blaring sound from speaker even without audio

Jul 28, 2018
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When I turn on my JBL LSR 2300 studio monitor speaker it makes a loud blaring sound that pushes the cone forward. This happens without the audio cord plugged in, it even happens when I change the cord out or use a different outlet. It came on suddenly when I turned it on today. The other speaker is fine. What the What?
 
Jul 28, 2018
2
0
10
0


thanks, I agree, continuing to try could only kill the speaker cone! I'll take it to my local guy to look at.
 
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