I have the FiiO e07k plugged into my desktop CPU via a USB cable. I have noticed that if I don't have any sound playing for an hour or more...if the thing is sitting 'idle' for a while, that when I start to play music, youtube, system sounds, it sounds scratchy and distorted. It's not the headphones, I have tried others.
But if I unplug the usb cable, then plug it back in, it sounds fine again. It has only been doing this for the last 2-3 weeks or so and I have owned it for about 5 months.
It is super annoying, does anyone have any suggestions? I am using a Dell that is a little over a year old with Windows 7. Do you think it is the FiiO, or settings in my CPU?