logitech z5500 hum

[Ranulfo]

So, I've been getting a hum from the subwoofer on my z5500 set. It gets worse when the speakers are powered on. Headphones plugged in and it works ok but even when gaming its getting annoying. I'll usually hear a "thud"/pop type sound when turning the sub on (main power) or switching between inputs on the control unit. Any ideas on how to fix this? It seems to have started after I moved to my new place a few months back.

TIA

 

[roaf85]

So, I've been getting a hum from the subwoofer on my z5500 set. It gets worse when the speakers are powered on. Headphones plugged in and it works ok but even when gaming its getting annoying. I'll usually hear a "thud"/pop type sound when turning the sub on (main power) or switching between inputs on the control unit. Any ideas on how to fix this? It seems to have started after I moved to my new place a few months back.

TIA

It happens on the older models. I had the very first model of the Z-5500. I must have moved it like 10 times and like you I had the hum issue.

The way I made it go away is by wiggling the cable that connects the main panel to the subwoofer. Looks like a VGA cable. You might hear some crackling from your speakers but it should improve the hum noise.

 

[spaceman]

Could also be a ground loop issue. Try unplugging things in your room. I had that issue with my sub and unplugging a desk lamp solved it.