Buzzing noise from computer speakers - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 9 Old 09-22-2019, 08:48 PM - Thread Starter
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Buzzing noise from computer speakers

I bought a pair of Logitech Z130 computer speakers today, and there is a buzzing noise. As I turn the volume louder, it gets worse.

What could be causing this ? Do you have any troubleshooting advice ?

Thanks.
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post #2 of 9 Old 09-22-2019, 09:03 PM - Thread Starter
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As I move the cables around, the buzzing stops. There are so many cables under our computer desk, I don't know what's causing it.

We have a desktop computer monitor, printer, the 2 powered speakers, ethernet cables, router/modem cables.

Any likely offenders ?
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post #3 of 9 Old 09-23-2019, 03:53 AM
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Sounds like a bad connection or a grounding problem. Probably got a broken conductor in the speaker cable or a bad solder joint at one of the connector ends. Try a different cable. If that doesn't fix it it could be the connector on the motherboard or sound card or in the speaker itself. You could also be getting some interference from a power cable if the speaker cables aren't properly shielded. Try to isolate the cables away from any power cords.
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post #4 of 9 Old 09-23-2019, 05:09 AM
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Agree with the idea of the poor shielding on the speaker wires. They are not much more than a bare wire. For about $20 more you can add a "subwoofer". Replaced my 10+ year old HP set where the "sub" quit couple weeks ago with this set. Really does sound decent. PC wise. Also has a control hub.



https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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post #5 of 9 Old 09-23-2019, 10:48 AM
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Clean up the mess of wires. Velcro, cable ties, or even zip ties are good and reducing all of the loose cables lying around.

As for the hum, it's not a good idea to have audio cables or speaker wires next too or on top of power cables.
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post #6 of 9 Old 09-23-2019, 10:54 AM
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Did you buy the speakers new, or used?
Do you have another set of speakers or headphones you can plug into the computer to see if it is the audio jack on the computer that is the issue?
If you can confirm that the speakers are the issue and not the audio jack on the computer, hopefully you kept your receipt!

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post #7 of 9 Old 09-23-2019, 11:01 AM
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This neoprene stuff works great for the wires. Easy to work with.
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post #8 of 9 Old 09-23-2019, 11:49 AM
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once I plugged in my laptop to 'desktop' speakers with sub woofer and the buzzing was very annoying for a day or so until I realized that the 3.5mm plug wasn't seated properly into the headphone port of the laptop!
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post #9 of 9 Old 09-23-2019, 04:41 PM - Thread Starter
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Jawaburger, I bought them new at Best Buy yesterday.

Thanks all.
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