I bought my Logitech speakers a year or so ago, and have had a problem with them ever since purchasing (but never really got round to sorting it!).
It plays initially really well once switched on. However, after approx 30 minutes of continuous play, it suddenly goes extremely muffled and 'crackly'. However, once I press stop and then play again, it then plays perfectly again.
It sounds like a very small problem, although when trying to watch films it gets extremely annoying (as you'd imagine) having to turn the film off and on again (and then track to the position I was up to!).
Is this a common problem? Is there anyway it can be fixed?
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OS these days are usually set up for additional hardware like speakers. But you should check the settings for the speakers from your computer first. To find out if the settings is the culprit, you can plug your speakers into another music player to test it. If the same issue arises, you may have to bring it back for exchange.
Hello endow1, hi, try this test, unplug you Logitech audio in plug and touch the input, you should hear a humming sound, Adjust the volume settings to high to hear it. If you cannot hear the humming sound, then there are problems you need to check. Place you speakers near your ear and adjust the volume Up and Down, you may hear a soft hum that should go up and down.
Absence of the hum means that the speaker has loose connection from amplifier to speaker driver, or loss of power, check to see if there is pilot light.
The crackling could be due to a faulty wire or jack connection. If you have any other sound device (e.g. headphones), try connecting that one instead of the Z4 and see whether the crackling disappears (in which case it's the Z4) or not (in which case it's the jack or the computer). Could arguably be an EM or electrical interference, but you'd need a laptop running on batteries to check the second, and trying orienting differently the speakers to try checking the first.
The music slowing down means something's wrong in the computer: the Z4 are purely passive, they can't do anything to the music tempo. Try running an antivirus check or try Task Manager (or Process Explorer) and see whether anything's eating more CPU than it should.
I was having the same problem but I seemed to solve it by having the laptop volume maxed and using the dock to control volume. I think that it has a sleep function where if it is not getting a signal it powers off and for some reason the laptop isn't putting out a strong enough signal to keep it awake. Maxing the laptop volume seems to give it a constant enough signal so that the problem went away.
Here is the link so you can download a manual: http://logitech-en-emea.custhelp.com/cgi-bin/logitech_en_emea.cfg/php/enduser/std_adp.php?p_faqid=8263&p_created=1158961578&p_sid=h_qp_7hj&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MSwxJnBfcHJvZHM9ODQ0LDE3LDE2OTQmcF9jYXRzPSZwX3B2PTMuMTY5NCZwX2N2PSZwX3BhZ2U9MSZwX3NlYXJjaF90ZXh0PW1hbnVhbA**&p_li=&p_topview=1