Shunyata Research Venom X EF Power Cable - Have you heard them?

Baylinor, I really don't think it is a matter of the type of dwelling, but more Who built and wired it. Also what city do you live in? I am in Denver and we enjoy pretty clean Power for the most part. Though I have a rather well-made power conditioner, I have never found any spurious signals on my lines. All I have to do is record something and then listen through the headphones at full volume, to the dead spots, especially at the start and end of the recording. If it sounds like it came from Youtube it's got noise. Also, I am a HAM operator and I get no interference from my equipment or anyone else. One thing to make sure of is knowing you have a proper ground and that you don't have ground loops. If you are really troubled try running a quality ground strap out the nearest window or wall to a well-planted ground rod OUTSIDE!