Test Bench: Sony Bravia KDL-40XBR2 40-inch LCD HDTV
Color temperature (Warm2 color temperature before/after calibration): 20 IRE: N/A 30 IRE: 5,470/5,878 K 40 IRE: 5,840/6,531 K 50 IRE: 6,056/6,441 K 60 IRE: 6,275/6,520 K 70 IRE: 6,304/6,661 K 80 IRE: 6,263/6,547 K 90 IRE: 6,359/6,489 K 100 IRE: 5,789/6,298 K Brightness (100-IRE window before/after calibration): 36.0/34.4 ftL
Of the Sony Bravia KDL-40XBR2's color temperature presets, Warm2 measured closest to the 6,500° kelvin grayscale standard. Additional tweaks made in the White Balance submenu delivered even more accurate results. Afterward, grayscale tracking measured around ±200 K from 40 to 100 IRE - a good level of performance. (Calibration needs to be performed by a qualified technician, so discuss it with your dealer before purchase or go to imagingscience.com to check for a technician in your area.)
The KDL-40XBR2 displayed only minor color decoder error (-5% red) via its HDMI and component-video inputs. Color points were reasonably accurate. Overscan - the amount of picture area "hidden" behind the edges of the TV's screen - measured 0% for both the HDMI and component-video inputs with the Full Pixel modes active, while the set's other overscan options brought it to between 3% and 7%.
The KDL-40XBR2 revealed full picture resolution for both 1080i/p and 720p test patterns through all high-def inputs, although a fair amount of noise could be seen in the last bar of a multiburst pattern on the component-video connection. A slight amount of edge enhancement was visible through all inputs even with sharpness control zeroed out and the Detail and Edge Enhancer settings switched off. Picture uniformity was very good overall, although the contrast level dropped noticeably when moving beyond a 30° arc from center screen - a typical limitation of flat-panel LCD TVs.