SOLUTION:1) Creative Labs suggested that I plug the T100 speakers into the Headphones port on the front of the DELL XPS-8940.  This solved the problem:  no more buzz.  BUT the MaxxAudioPro setting also has to be set to Headphones.  Here are the steps:     a) Unplug the AUX cable (which is connected to the speakers) from the Line Out port on the back of the system.      b) Plug the AUX cable  into the Headphones port on the front of the system.      c) The Waves MaxxAudioPro app opens, asking what type of device was plugged in.  If you select  Speakers, the audio output from the speakers will buzz.  Instead, select Headphones and the headphone type.  For headphone type, I selected "On the ear".  But "Earbuds" or "Over the ear" might also work.  Click OK to close the MaxxAudioPro app.    Now the speakers will output sound without buzzing. 2) I also opened a Service Request with Dell.  They conscientiously checked the system and had me plug the AUX cable into the Line Out Port and later into  the Rear Surround Out port.  They expanded the MaxxAudioPro app on the screen and tried different settings.  However, they were not able to find a solution other than the one that I described in item (1) above.
Hello,  a) I have a new set of Creative Lab T100 speakers. It is a two speaker system for desktops and laptops and costs about $100. b) When the speakers are attached to my XPS 8940, the audio playback includes a buzzing sound in addition to the normal playback sound (speech or music). c) This problem does not occur with my XPS 8930. d) I downloaded the latest software updates to the XPS-8940. e) After many experiments, I finally placed the two systems in the same room side-by-side. I tried the speakers first with the XPS 8930 then with the XPS 8940.(1) In each case I powered down one system while the system that was connected to the speakers was running.(2) In each case I used the same power cord, mouse (cabled), and keyboard (cabled).(3) In each case the speaker power plug was plugged into the same socket in the same surge suppressor.(4) In each case the speaker AUX-in cable was plugged into the system's Line-Out socket (green rim).(5) In each case the right speaker (the speaker that was connected to the system) was about 3 feet away from the system. The left speaker was about 7 feet away from the system.(6) The speakers worked fine with the XPS 8930, but buzzed (in addition to the expected audio sound) with the XPS 8940. f) According to the speaker user manual, the speakers are not magnetically shielded. g) Does anyone know why this problem might be occurring?  Does the XPS 8940 emit more magnetic radiation than the XPS 8930? Thank you,  W.D. Gaither
XPS 8940, Creative Labs T100 speakers, emit sound + buzz