[dubleon]

Hi all,
 
Does anyone have this problem when they run this amp/dac from the usb input? It a kind of high pitched noice that dissapears if I unplug it and plug it in again (static?). If so, did changing the USB cable help? I know they do an 'Impulse lead' but I don't think this will fit the mobile...
 
Thanks,
 
Leon 
 
EDIT: Interference (!)

 

[Mad Max]

Might be a grounding issue or software problem.  When exactly does the noise occur?
 
What programs do you have running at any time, what are the settings you are using in them (the ones that utilize the Icon mobile when it is plugged in)?