1/8 plug to rca cable problem


I am trying to run 1/8 from computer with an adapter, it is an adapter that is 1/8 - female rca from Radio Shack. the problem is when I attach it to my Counterpoint SA 2000 preamp I am getting a hum, I am guessing the adapter is using common ground that is causing this. Any suggestions on another cable to use, 1/8 - male rca ???

Thanks
slikric3000

Showing 3 responses by slikric3000

1. I am barely reaching the computer with a 1 meter cable
2. Cable does not have to be plugged in for the humming to occur
3.I don't think that is the problem.
4. Is the USB to RCA linux friendly ???

I found a Monster Cable adapter on ebay, for $10 I am going try that I think.
It does via the usual optional bracket, but I am getting ready to do another computer build ( using a salvaged mobile cpu ) that has and onboard coax/optical.