Originally Posted by dsilver668
Hi Styln yeh I would love to know how much your set puts out... When I was at the store I couldn't hear it buzz although given it was next to 50 others sets I don't doubt it.
Buzzing output level of my P50HDTV10A (Oct 06) is very low. In fact, I want to call it a hum, as in 60 Hz hum. But hum is to smooth to describe the sound and a soft buzz is a better description of the sound as it connotes a harsher more jagged sound.
Being an obsessive compulsive audiophile I got out my trusty Radio Shack sound pressure meter. I've modified it to respond to a wider bandwidth and calibrated it against professional equipment at work. It is not perfect (hey it only cost $45 including the upgrades) but it is more than accurate enough for hobbiest use.
First I stood 3 ft in front of the unit. I put on the break-in disk and the paused it on the first screen which is all white as this produces the loudest buzzing sound. Then I switched the picture on the P50 to "Vivid" for the same reason: loudest buzzing/highest load on the power supply. I put the sound meter on it's most sensitive reading 60 db, C weighting, slow response and got a reading of...
-10db which is the lowest the meter will read. Now I could hear the set buzzing, but the level is below 50db 3 ft in front of the set. OK, then, let's measure right at the source: upper right back corner of the set. I moved the meter 1 inch from that spot and measured again...
-10db again. So, my results show that the buzzing sound while audible, is at least below 50 db 1 inch from the source in a worst case scenario. During normal playback and not on Vivid (don't use this!) I only hear it buzz every now and then. I don't have the movie Avalanche, but that would likely be a good test and might create some problems for some people.
While I wish it was completely silent, I don't find this level of background noise a problem while watching TV. If I was listening critically to audio material, it would drive me crazy and I'd return the unit; but then I am an audiophile. A final real world test: no one in my house (wife & 3 kids) has mentioned that the set buzzes. They have all mentioned how great the picture is. IMO, this low level buzzing noise is something everyone should consider when buying this set. It is not a perfect set and this is one of the compromises of buying a value brand.
I am absolutely keeping mine - it's an incredible value and a good bridge display until more HD content is widely available. With luck, it will last 5 year and then die - giving me a good excuse to buy an entry-level 4096x2048p "Extended HD" display that still does a good job displaying the old 720p/1080i HD material