ok heres the deal i got my 2nd 9986 today from John Lewis 1st one was a buzzer. set it up tonight - exactly the same s/w ver 2.0 buzzing like a buzzy thing. I made sure i paid a visit to my local JL last sat the have a listen to there set and that made no buzz that i could hear. Mine goes up and down with the contrast, virtualy goes with the ambilight off but not totaly. It seems to come from the top of the set roughly in the middle, and its very like your standard power supply under load hum/buzz. When volume up to normal levels its not a prob - but late at night low levels its audible. What i would like to know is do you guys with the zero buzz sets hear anything when say sitting 8-10 feet away with the sound on mute? as i do. And ofc with my head stuck at the back its quite loud I'll be calling JL tommorow to try and get something sorted out and would love to know for sure that there really are sets out there that do not buzz sorry for long post and thanks in advance!