Originally Posted by mpc920
good to hear about the 40w audio. i was just reporting what was stated in the manual, but had my suspicions that 20w just wasn't enough to cover the sound i was hearing. glad you are happy with it, and i didn't lead you astray with my false info.
I am still uncertain as to what the precise configuration may be.
We know there are four speakers rather than just the two on the TC-32LX70 but the specs from the Panasonic web site for each are identically worded except for the number of speakers. Each spec says: "Speakers -watts per channel - 20 W (10%THD)".
This would seem to say that the total audio power for each unit is the same at 40-watts (20-watts x 2), but the "BBE Viva HD3D sound" in the TC-32LX700 may simply redistribute the total power among its four speakers in implementing the advanced sound-stage processing.
I don't mean to belabor the issue since I am really satisfied with the way this set sounds (I leave the BBE Viva... mode turned on). At this point it has become a simple curiosity, but if anyone wants to contribute further clarification it would be appreciated.
By the way, I read the information in the link to extreme tech provided by wardp1
in his 04/06/07 post in this thread and found it edifying in that it seems to explain why the 'great black levels' for both CRT's and Plasma's do not accord with my perception of them.
Each of those evaluations are the product of controlled testing under laboratory conditions (read: completely dark room). Both of those emissive technologies seem to suffer great losses of contrast due to reflections from the inner surface of the glass at the front of the screen relative to LCD's which, by and large, use thin plastic which, testing seems to show, is relatively immune to this internal reflection problem.
Hence, the apparent contrast at the viewer's retina (where it counts) may actually be greater with the better grade of LCD's than that of either CRT's or Plasma's. Additionally, LCD's fare much better with respect to the lack of distracting specular reflections.
Generally, the testing in the article shows that all technologies suffer greatly from diminished contrast due to ambient light striking the viewing surface. Consequently, it is my view that the greatest single adjustment one can make is to subdue and otherwise control ambient light to the greatest practical degree in a given situation. Too, this article seems to confirm to me why the manufacturer's null settings seem to be pretty much spot on when the set is viewed in a darkened room.