Well, a new sound issue arise today. I came across this new issue around this afternoon. This morning I was playing Lords of Thunder and even get to the last stage without any issue. Suddenly, when I went back to turn the duo on around the afternoon to see I could beat LOF, this issue came up. I have noticed ever since I had the duo, right when you turn on the duo, during the super system opening screen, there's one crackling sound and that's it. Now, this crackling sound is occurring through out and the sound is very low and sporadicly it goes back to normal level for a brief second. Any ideas? I'm thinking it's the potentiometers I relaced with.