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  1. #1

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    Mar 2013
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    Default Feedback in new system

    I have had a polk 4000 soundbar for about 4 days and after 20 to 30 min of use it starts to get very high pitched feedback and if you turn the system off or the source it will be fine again for a while then starts again. I have also disconnected the wifi with no change . Please help.

  2. #2

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    Oct 2011
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    Pocatello, Idaho
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    Default

    Call Polk customer service in ten AM
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