Quote Originally Posted by demianariel View Post
- I´m using a generic ac adapter - can this be the problem?

i´ve read that a generic ac adapter can cause glitches /lines on the video, but it can affect the audio too? This is my best shot.
Yes, that could be the problem. I had a Genesis that buzzed when using a replacement adapter, I tracked down a proper original adapter and it played fine. The system came with the replacement adapter when I bought it used.