14RamMan Posted December 3, 2016 Report Share Posted December 3, 2016 Are there any tried and true methods for testing speaker polarity in an already installed system? I have the AudioTool app on android and a calibrated mic, but dont know if its the most reliable method. Does anyone have any suggestions? Link to comment Share on other sites More sharing options...
bmwking Posted December 3, 2016 Report Share Posted December 3, 2016 9 volt battery and speaker wire is a classic way. just make sure only the speaker is connected so you dont backfeed an amplifier Link to comment Share on other sites More sharing options...
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