I own brand new playbar, not even a month old, and I had a static noise. I told the store I bought it from and they replaced it, but the new one made the same noise right away. It's connected to a Toshiba Fire TV through the digital output. I have only noticed the noise when watching Netflix. and I do not have any other devices nearby causing interference (no cell phone signal, bluetooth signals or antennas) I'm not sure but it sounds like interference as it will come and go.