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Corey HoffmanAug 14, 2025
Why is my JBL Speaker System humming or buzzing when I move the mixer level controls?
- HHeather BartonAug 14, 2025
If you're experiencing hum or buzz sounds that change when you adjust the mixer levels on your JBL Speaker System, this could be due to a few reasons. It might be caused by improper A/C grounding or faulty equipment connected to the mixer input, or a faulty cable between the source equipment and mixer. To troubleshoot: * Disconnect or mute channels one at a time to identify the source of the problem. * Consult the owner’s manual of the potentially faulty equipment for troubleshooting tips. * Try substituting a known-good cable for the cable you suspect is faulty.