XGA Hybrid Presentation Projector
Acceptably bright image with wide brightness range. With five Eco levels and five predefined modes for each, the XJ-A147 offers 25 choices of Eco settings that can affect brightness, plus two non-Eco settings, giving you a wide range of brightness levels. With the brightest Eco setting, for example, the least bright predefined mode was only 65% as bright as the brightest mode. In my tests, the non-Eco settings came in at 2305 and 1727 lumens, and the five Eco settings at a range of 1025 to 1549 lumens with the brightest predefined mode.
As with most DLP projectors, color brightness was lower on my tests than white brightness. The difference is most significant with Eco off, and explains why blue and red looked a little dark with the brightest setting. With Eco on, however, I measured the color brightness at roughly 90% of the white brightness with the Standard preset. That's not enough to notice a brightness difference between full color images and screens with a white background.
In any case, the XJ-A147 was easily bright enough in my tests for a 98" diagonal image to stand up to a moderate level of ambient light, and the range of settings offers lots of flexibility for adjusting the brightness for lower light levels and smaller screen sizes.
Note too that the fan noise drops noticeably with each step down the brightness ladder. The two non-Eco modes are loud enough so they could easily be distracting if you're near the projector. The Eco levels vary from whisper quiet at the lowest brightness level to potentially distracting at the highest, if you're sensitive to fan noise.
Good brightness uniformity. Brightness uniformity, at a measured 82%, varies just enough to see a touch of difference between the center and sides with a solid white screen. Break up the image with text or graphics, however, and the difference simply isn't visible.
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