Originally Posted by AvidHiker
Yep, you have "speaker effect". I have the same problem with my set (June 2011 build). Seems like maybe a little luck of the draw to get a quiet set (and helps to have some hearing damage in the high freqs, like many people over 30 tend to have). There is another type of buzz (power supply) that everyone can hear, but this is not usully an issue with these panels. Putting your hand behind your ear or turning your ear to face the screen will make the sound worse.
Try tilting the panel towards your viewing position a bit (Stick a couple of blocks under the back corners of the stand, about 1" or less should do it). Obviously not everyone can do this, depends on how and where you have it mounted. This works for me since my TV is on the stand and isn't mounted very high - sends all that directional buzz/HF crap into my carpet and couch. After warming up for an hour or so, the buzz is greatly reduced like this.
Very interesting. This buzz doesn't even seem high pitched to me, it just sounds like electricity buzzing and crackling.
It's pretty incredible how directional it is. In the sweet spot it overpowers the sound of my 360. I truly hope this is a one off defect in terms of its intensity otherwise I can't understand how the design made it through to production.
My breaking point for requesting a return was when I could hear the buzzing over Michael Bay explosions (Transformers 3).
Completely unrelated but this is my first plasma and its eerie how much it looks like a CRT. I kinda feel like I am looking through a soft window as opposed to the sharpness of my LCDs. I like it, but it is taking some adjustment coming from retina searing LED devices. It sorta has a milky, blended look to it that makes the image look better whereas LCD doesn't seem as "blended."
That made probably no sense but I'm not sure how to explain it.