That's what I thought, after doing a forum search. There were a few reports of amps buzzing, but not the 950. So is your 950 completely silent? My thought was it should be. Mine was when I first got it, but this problem recently developed and I had to return the unit for repair. Sucks that I'm out a few weeks but I hope they can fix it. I got the unit in July '03. Is there a new firmware upgrade or anything that you know of I should ask them to do while it is in the shop?