So I just hooked up an Audiosource AMP300 and notice a small amount of noise coming from my tweeters when the volume down or very low.
I heard it in my 2 channel rig and also when I moved the amp into my HT.
Almost possitive it is the amp, because I had a couple of power amps in the past and did not experience this problem.
I heard about the 60HZ Ground noise hum, but I am not sure if that is what is going on. This seems to be a faint buzz coming from the tweeter range.
Please let me know if there is any way to get rid of this via power cords or other means.