Got my 50GT50 deliveredfrom Bestbuy last Sat. I think I got a good unit, no noticeable buzzing when displaying normal images, I’d have to put my ear 1-2 inches from the upper left side of the screen to hear a faint buzz. I can’t hear it at normal viewing distance. When displaying a bright white image, with TV volume at 0, from my viewing distance, which is about 10feet ,I can hear a slight buzz along with the normal(?) high frequency whine like the flyback transformer noise from CRT TVs. (If anyone tells you their plasma is dead quiet when displaying a bright white image, their room probably has background noise that mask the noise or they just don’t have good hearing…ok, I think I’ve opened a can of worm with this line.). Since I don’t watch bright white still image all day long, and any bright image won’t display more than a few seconds in normal programs, this is acceptable to me.Definitely no worse than my other Panasonic plasma (TH-50PX600U) that I paid $3k back in 2006.
Sound is very acceptable for the built-in rear facing speakers, I rarely need to turn it up past 20. I tried the HD master, Cnet and D-Nice settings. I think my TV has a slight red push with all of these settings. I am not sure why, but all of them used the warm2 as the color temp, with the exception of D-nice settings, I find the picture with warm2 color temp has a yellowish greenish tint, it’s very noticeable with hockey. With D-nice settings, there is actually not much different between normal, warm1, and warm2, I am currently using a variation of D-nice settings (a -1 or +1 here and there) to tame the slight red push with the gamma setting of 2.2 and keep the brightness low. I guess I can use gamma setting of 2.4 or even 2.6 if I keep the brightness higher, but I find this setting has the best shadow details. What good is deep black, if all you can see is just a black hole. Anyway, looks like Amazon had a price change on this TV, it’s almost $200 more now.
Edited by richardyc - 2/4/13 at 10:12am