It could be, or you could be sensitive to it. (Some are more than others).
That said, if you're still within the exchange period with you retailer, you might see what your options are. If not, we can send a service tech to take a look, but there may be a limited number of things that can solve it.
I am getting alot of buzzing from my new c8000 plasma tv. I know that some buzzing is normal for plasmas, but I can hear this over normal tv volume 15 feet away. Could this be a defective unit?