Oh yah - and initial, first look PQ comparison.
-Right off the bat, like the b650, the B550 has a much brighter screen than the a750. Blacks appear a bit deeper too.
-Less clouding/flash lighting than the a750, virtually none. Better QC or luck?
-Doh! a dead pixel (not stuck but dead). So much for QC or luck. a750 and b650 had no stuck/dead pixels btw.
-Colors are vastly different between the a750 and b550. In fact when viewing this very forum, the pastel background colors are very different than the a750. Skin tones are very different. I don't have a reference so I don't know which display is more correct but I prefer the b550s as I don't think ppl should be as tan as they seem on my a750.
b550 has a slight green push where the a750 has a slight red push. They both probably need some calibration regardless.
-Pixels seem... bigger on the B550 for a lack of a better description. I dunno how quite to explain it, it's definitely not as good of a monitor to sit 3 feet away from compared to the A750. The picture looks "cleaner" and pixels are less noticeable on the a750. The B550 has sort of a noisier picture in general. I think Samsung changed panel types in 09. I need to take a macro picture of both displays to see how their pixels look close up.
-Color transitions not quite as smooth. 10bit vs 8 bit? I dunno.
-Despite all that, it's still an overall good looking monitor though!
That's it for now... g'Nite folks.