QNIX QX2710 LED DPmulti True10 Review
by Chris Heinonen on April 11, 2014 6:00 AM ESTsRGB Test Bench
All calibration measurements are done using SpectraCal’s CalMAN 5.3 software with a custom workflow. Measurements are done using a C6 colorimeter that is first profiled against an i1Pro spectrometer to ensure accurate results. There are two sets of targets we use. Pre-Calibration and our first calibration aim for 200 cd/m^2 with an sRGB gamut and a gamma of 2.2. This is a common real-world setting for a display. The final target changes the white level to 80 cd/m^2 and the gamma curve to the tougher AdobeRGB standard.
|
Pre-Calibration |
Post-Calibration, 200 cd/m^2 |
Post-Calibration, 80 cd/m^2 |
|
| White Level (cd/m^2) | 204.1 | 201.0 | 84.3 |
| Black Level (cd/m^2) | 0.275 | 0.281 | 0.131 |
| Contrast Ratio | 742:1 | 716:1 | 644:1 |
| Gamma (Average) | 1.90 | 2.17 | 2.45 |
| Color Temperature | 6702K | 6629K | 6506K |
| Grayscale dE2000 | 2.74 | 0.44 | 0.81 |
| Color Checker dE2000 | 3.37 | 1.53 | 1.65 |
| Saturations dE2000 | 2.41 | 1.42 | 1.50 |
For this review I’ve switched from taking 21 measurement points to taking 256 levels for grayscale. It provides a much better level of detail than before. Color measurements can’t be measured at the same level of detail, but I do measure them as much as possible.
Using the "Warmish" color temperature setting, we see a good RGB balance before calibration. What isn’t as good is the gamma point, which starts out at 1.6, rises up to 2.0 and then falls down quickly at the top end. This causes crushing of highlights, where values from 90%-100% will look almost identical, and causes shadows to be washed out as well. Colors also have errors with colors on the Green-Yellow-Red side of the CIEuv chart being over-saturated. This also causes the skin tones to be exaggerated.
Post-calibration at 200 cd/m2 the RGB balance is improved but more importantly the gamma is far improved. The gamma is so far off the 2.2 target above 90% that we can’t fully correct it here, but calibration does a good job of fixing it overall. The dE2000 errors fall and are all below 2.0 now with an average of 0.44 that is very good. Color errors improve but there is still a lot of over-saturation in oranges, yellows, greens, and reds that cause visible issues. The lower half of the color gamut is much more accurate.
When we target 80 cd/m2 we see more issues with the gamma, as the lower light output provides us less range to fix the gamma through the hardware LUTs. The grayscale dE2000 is higher as a result but still below 2.0 everywhere. Colors have the same issues, as the green line is hidden behind the yellow line on the saturations chart, but it is otherwise almost the same as it is with 200 cd/m2.
The pre-calibration numbers are okay for the QNIX, but the main thing that holds it back is the gamma preset it utilizes. It makes it hard to hit the gamma target of 2.2 that we look for and means you can see some highlight clipping, even after calibration.
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cheinonen - Saturday, April 12, 2014 - link
This is the model that QNIX had available for me to review. None of the other models have been made available for review to this point.okashira - Friday, April 11, 2014 - link
Whoa, I just noticed a huge mistake in the article. This monitor can NOT be overclocked beyond 60Hz.It will accept high then 60Hz input, however, it will only result in skipped frames and poor juddery movement.
Stuck with the DP2710LED or QX2710.
okashira - Friday, April 11, 2014 - link
WHy is anand deleting my comments?This monitor is one of the worst of the Korean's. The DP2710LED and the QX2710 are superior.
Also, this monitor is not overclockable. Over 60Hz and it just drops frames. Bad information.
Ryan Smith - Friday, April 11, 2014 - link
"WHy is anand deleting my comments?"We haven't been deleting any comments. As far as I can tell, all of your comments are present and accounted for.
okashira - Friday, April 11, 2014 - link
Yep, sorry about that. I thought comments were sorted by descending date.Badelhas - Monday, April 14, 2014 - link
Ryan, please buy the single dual-DVI input and test it. That is the Korean Monitor you should be testing, not this one ;)Laststop311 - Friday, April 11, 2014 - link
If you keep an eye out on craigslist you can find really good deals and people will usually negotiate. I got a dell u3014 2560x1600 and I only paid 625 including the gas to drive and get it. The outer bezel had some scuff marks but the panel performed flawlessly. It was still perfectly calibrated, almost perfect uniformity and it ran very cool to the touch compared to other monitors.Yes 625 isn't as cheap as basically close to 400 after all is said and done getting a korean monitor. But this is 16:10 and 30" with more pixels. When you are only saving that much though is it worth the risk of dead pixels and crappy build quality and questionable longevity. Keep an eye on your local craigslist's for high end monitors. This is where you'll find the best deal.
I'll be sticking with the dell u3014 for a long time as the only upgrade i can look forward to is one of the 32" 4k UHD monitors and they are way overpriced for quality ones.
Death666Angel - Saturday, April 12, 2014 - link
That was a good deal. At the time I was looking at 1440p monitors, 30" 1600p ones were still going for 750 to 900€. I got my Samsung one for 540€ because of a discount. And besides the refresh rate, it is a super great panel with the right amount of anti glare. I'm looking forward to a 4k model in a year or so, when 60Hz and compatibility of good. :)pierrot - Saturday, April 12, 2014 - link
so the version with less inputs should be just as good in the other areas right?cheinonen - Saturday, April 12, 2014 - link
There's no way to say at all how it would perform. The firmware is different, and as we've found before (look at the two LG 29EA93 reviews), a firmware update can make a monitor completely different. So the panel might be the same, but that's just one part of a display.