Logitech speakers occasionally making loud thudding noise!?

Driver might need to be reinstalled but to confirm this you should attach any other set of speakers of Headphones. However the driver or improper installization of windows xp usually causes this on getting updated. I'm not sure that what windows you are using therefore you can probably just check if the cables are pind in right sockets and that the Speackers are getting power. As far drivers are concerned the Speakers do not have any drivers but the sound card does, therefore if you have not installed the drivers of sound card you may install them now. This may solve the problem hope fully

Hi,
You can download your driver at this link :
http://id.diplodrivers.com/download-driver/LOGITECH/SOUNDMAN-S-20
Regards

Plug the speakers into the green receptacle which is the speaker out.

Hi Aceofmktg,
go to start menu, control panel, sound. Then here go into the Tabs and select the Speakers. Apply, Done !
If it does not work, then I suggest you to contact the Logitech support for a replacement this is an hardware
failure and it's covered by warranty terms.
US/Canada support: http://www.logitech.com/en-us/contact
European support: http://www.logitech.com/en-gb/contact

The pop from other electrical items makes me think it's a ground problem but I am do not have a clue as to what type of setup you are running over there. Did you try a surge protector?Is it 110volts with a seperate ground wire?
Have you tried running a UPS?

I had the same problem for the longest time with my set of Logitech 540 5.1 speakers. Turns out the solution was pretty simple. All I did was open the Master Volume controller and mute the Microphone. Hissing went to zero. Sound is great now.

I used to have a whirlpool fridge, they are the ones who make kenmore too. It used to make a loud thud noise. It was the compressor turning off. sometimes it was loud enough to wake me up at night. It did this for years and I never had any problems with it. when I purchased a larger fridge I sold it to a friend and its still working today. If you can tolerate the noise I wouldn't worry about it unless it starts giving you trouble.

Hei Maxim

Its just a RJ12 telephone wire (6 conductor), any electrical shop will sell.

TQ

Verify that the audio lead is connected to the correct line out on the computer. Check the sliders in the windows volume control are correct and mute is unticked. Try plugging some headphones into the computer to hear if the PC is actually producing an output.