Optoma UHD65 4K DLP Projector
OPTOMA HAS BEEN IN THE projector business for years. Go to the company’s website, and you’ll see a bewildering array of models. But the UHD65 is one of the first models to make use of a new 4K DMD (Digital Micromirror Device), the core of Texas Instruments’ Digital Light Processing technology. And along with its sister model, the UHD60, it’s one of the cheapest.
The latest TI chip is actually 2716 x 1528, which isn’t native 4K (or the 3840 x 2160 UHD resolution that dominates the consumer world). But when it’s combined with pixel shifting—first displaying half of the pixels in a 4K source, then shifting the pixels in a slightly diagonal direction and displaying the other half—all of the roughly 8 million pixels in a 4K image are flashed on the screen. The timing of the shift is so rapid that the eye blends the two “frames” together. (See “Is DLP’s 4K Really 4K?” in our November 2017 issue.)
This differs from the similar shifting technique that JVC and Epson use in their LCOS and LCD “4K” projectors. Those designs use 1920 x 1080 chips. Do the math, rounding off to the nearest million, and you get 2 million pixels on the screen before the shift, then 4 million after. With TI’s new 2176 x 1528 chip, the results are 4 million pixels before the shift and 8 million after.
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Denne historien er fra December 2017-utgaven av Sound & Vision.
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The Big Clean
Chances are you probably do not think about the state of your electronic devices too often. Oh, you might think about all the upgrades you would like to make; where you would put those new tower speakers, or how a second or third subwoofer would really tame those bass modes in your room, or how much more cinematic a larger screen would be. Sure, you think about that part of your system. But how often do you think about the well-being of your system?
Planar-Magnetic Attraction
THE DIPTYQUE DP 115 speakers are a new model 2-way, ribbon, and planar magnetic driver dipole \"isodynamic\" speaker system designed and built in France.
Full-Featured 4K
THE QN95D is one of two televisions we went hands-on with on a recent trip to Samsung's New Jersey QA Lab, the other being the S95D quantum-dot OLED.
Party Animal
FOR ANY party, the Soundcore Boom 2 Plus Outdoor Bass Bluetooth Speaker is an essential invite.
It's the End of the World. How About Popcorn and a Movie?
Attention all preppers! Today's column is right up your alley-or, more precisely-your tunnel to your underground bunker.
Bridging the Analog-Digital Gap on a Recliner
When I shopped for a motorized recliner, I rejected models with their own Internet Protocol address and built-in speakers. No need. I had already placed a smart speaker on an étagère beside the space where I had planned to put the chair. I'd have a smartphone in my hand and the room would be bathed in Wi-Fi.
BACK TO THE GARDEN
AN AQUARIAN EXPOSITION in WHITE LAKE, N.Y.
Big Sound, Small Price
DOLBY ATMOS, once a costly premium, is enjoying a surge of popularity across a range of new audio gear.
Classic Sound with Streaming Smarts
THE TWENTIETH century had its Roaring Twenties; welcome to the twenty-first's Streaming Twenties.
Stand and Deliver
IT DOESN'T seem all that long ago that SVS first entered the audio scene.
