The yellows aren’t the main problem of the Quattron displays… it’s fairly easy with the user menu controls to get Yellows accurate, color-wise. They do end up slightly oversaturated, but that doesn’t really look too bad. The biggest problems I had with the Quattron I reviewed (LE925 series) was that there wasn’t enough adjustment range in the color brightness controls to get green and cyan as bright as they should be… they started out around 70% to 80% too dim (referenced 75% white with 75% colors used for measurements) and after using all the adjustment range, they ended up still being about 40% too dim. There’s also a problem that afflicts Caucasian fleshtones… some narrow luminance range (guessing around 95%) goes green-ish gray and you see those patches of greenish-gray mixed with nearby fleshtones that look normal. So people look like they may be turning into zombies. The only way I could fix that was with the 20-point grayscale calibration in the Lumagen Radiance.
Having lived with a Quattron for a couple of months, if I got a call to calibrate one, I would seriously consider declining to do the calibration because there were just too many problems that couldn’t be fixed with the limited grayscale controls and the funky CMS controls.
