[Arvidter]

Hello everyone!
I have a very strange problem. I noticed that when I am scrolling on my pc, that I hear strange buzzing noices coming through my headphones. I think it's my dac (Topping D30pro), because it only stops when I remove the usb cable from my dac or if I remove the cable between my dac and amp. It somehow still comes through when my dac is turned of and even when the power cable of my dac is unplugged. Is there a way to fix it? How does this even happen?

 

[NA Blur]

Switch to optical in from your source to isolate any ground issues. USB has really bad grounding issues.

 

[kjason427]

It seems you may have a ground loop.