Hello, I have a couple of questions for the forum. The first is I am noticing a hum noice in my center speaker when playing my blue-ray player. The second question is regarding speaker distance form receiver. I have an onkyo sr705. I did the calbration. The left front speaker is saying 12 foot but in reality it is only 6 foot. Is the calibration feet from the receiver or is it something else. All of the other speakers are off too. The third question is a quarter from zero, the subwoofer is making a hum. I have a 350V3. Any input would be greatly appreciated. Thank you.
