Ok I am getting really mad with Logitech. I ordered some z-680's about a month ago. I noticed with everything turned up and the volume at about 1/4 the way turned up there was a buzzing noise...ok I thought so I sent them back to newegg....Just got the new speakers today and I have the same problem...I have tried them on my XBOX, PS2, DVD player and my PC and it still has the buzzing noise...I don't know what is causing this...maybe another defective set or is it something I am doing...
here is the logitech help page for buzzing etc. Plz help I don't know what to do. BTW the first solution seems the most logical for me but like I said I have tried it on multiple items and it has the same effect...so I don't think it is the sound card. I have no other input cables except for the digital out I am using...and I am using nothing else on the same circuit that draws a lot of power. I don't know about the last one. Also would this be under the hiss?? If so then I could move the sub away from my "listening position". I can still hear it a little bit from about 7 feet away...