The Three 1280x800 LED Clones - Page 9

Manamb >>> How exactly did you arrive to the conclusion that according to those numbers the NEC comes second to the Acer for HT applications ?
The NEC has higher FO/FO contrast and ANSI lumen output, whereas the Acer has higher ANSI contrast; Colors from both pjs should look similar onscreen, however the reviewer did point out the excellence of colors from the NEC.
From my point of view, the NEC slightly edges out the Acer pj performancewise, keeping in mind the fact that it appears to run somewhat hotter than the Acer and has a msrp of $800 vs. $700.
BTW guys, i downloaded the NEC L50W product sheet from the company's website and when i noticed the spec for "contrast ratio 2.500:1" i had to smirk and think how refreshing, for a change, to see a spec that is actually too conservative according to an external test reporting of the product ?

That variance of 10dB between these clones is a little suspect considering these four pjs have essentially the same innards, which begs the question : are these manufacturers measuring fan noise using the same distance from port to microphone ? I doubt it, and from my experience that makes a huge difference; Moving the microphone even a few inches away drops measurement levels considerably, so who are we to know if the ACER K330 was measured 20" away from port versus 12" for the Optoma ML500 ?
On the other hand if these pjs do use the exact same internal components layout, why is there such a difference in the way hot air is exhausted ? According to these tests the Viewsonic's hottest port is the one next to the lens while on the NEC the hottest port is the one located on the left side of the case.

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As far as i know the ACER K330 will be available in the USA in the two colors shown, white/silver edges and flat black/glossy black trim.

blee0120 >>>So, besides the very audible fan noise issue you reported on the Optoma ML500 thread, have you noticed any other issues so far, specifically focus problems at start-up ? If you place your hand on the ML500 after it's been turned on for about one hour, how warm does it feel ? How noticeable is that diamond pattern pixel grid when displaying white fonts on black background during end credits of a movie ?
Thanks a bunch....

For Y'all Information >>> ZOL.com has just reviewed the Optoma ML500 and i added the figures of the test report to the comparison chart located on page 4 of this thread; So, all four clones have been tested by the publication under the same test conditions which should give us a good means of comparison between these clones...

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Well, the ACER and the NEC seem to have an edge in contrast ratio and display stronger color saturation whereas the Viewsonic and the Optoma have measured lumen output that is closer to specs.
According to thermal figures the Viewsonic and Optoma have hottest exhaust air temperature on the port right next to the lens whereas on the NEC it is the port located on the left side of the case away from the lens, if that even matters considering that blee0120 reported that his Optoma feels cool to the touch after eight hours of continuous running.
The remote control for the Viewsonic appear to be different than the others and looks like it uses AAA batteries, again, if that matters.
Also, i appreciate the look of that sliding lens cover on the NEC, but i am not sure if it's worth a higher list price of $800.
I wonder why the test report on the ACER was pulled out from the website; Perhaps some enterprising PR rep from the company complained to ZOL.com that the measured test result for maximum lumen output put the product in a "bad light" vis a vis its specification of 500 lumens, which turned out to be considerably less, and ZOL.com decided not to offend/antagonize/displease ACER China, one of the largest manufacturer of computers, monitors, presentation pjs, accessories, etc, in the world ? Hmm...

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Unfortunately ZOL.com did not publish noise figures and i think it would be meaningless to add the manufacturers' specs for fan noise considering each one uses different microphones, measuring distance, pj location, etc.