ive bought yesterday nuforce icon dac/headphone amplifier and akg k550 headphones.
When i listen to a song via that on the foobar(laptop) , after a few minutes a hum starts instead of the music.
I must then turn the dac off, when i turn him on again then the music plays normal 2 or 3 minutes and after that it becames to start humming again.
When i connect this dac with cd player on an analogue way than it plays normal without that problem
But with the cd i dont get a good sound like i get it with the pc
when i took out the batterycharger of the pc (ive read on the net that many solved their problem on that way)
the problem with the hum still there.
So i wanna know how to solve the problem