Hi, I recently picked up a CDP-S350, and I've noticed some issues with static noise. The speakers put out a constant static, although It's not very noticeable a unless you get close to the speakers. It also does this with headphones, however it's MUCH more noticeable and annoying. It does regardless of volume. Also, I checked the display model at Guitar Center and it does the same thing. Is this an issue with the overall model, or could there just be some defective models? I'm thinking that it's more likely that the speakers and stereo out are cheap, which is too bad, because otherwise this is a nice keyboard.