JVC RS1 and Sharp Z20000 Measurements and Calibration
For the most part, I'll let you rely on my comments in the individual reviews.
Now the good news is that the JVC RS1 offers the best out of the box color for movie watching I’ve seen yet (and that includes two far more expensive 3 chip DLP 720p projectors, the InFocus 777 and the SIM2 C3X). With the goal of all brightness levels (dark gray to white) having a 6500K color temperature, the JVC is almost perfect without any adjustment, with all ranges between 6620K and 6690K. Not only is that superbly close to ideal, but all ranges are within 70 Kelvin, whereas most projectors from darkest grays that I measure (30 IRE) to white, normally have a range of 300K to 700K. A 70K shift is about as close to perfect as is possible.
The Sharp XV-Z20000, by comparison is definitely off the 6500K mark. It’s numbers are still very good, but it needs adjusting. It ranged from 6849K to 7103K, still an impressive 250K shift, but, like most projectors it seems, it is cooler (shifting to blue) in the bright ranges, and more reddish in the darker ranges. Despite all the controls, I was never able to get the Sharp to be as perfect as the JVC. Still, even without any adjustment, the Sharp produces an excellent color balanced image for movie watching, and with adjustment, it comes very, very close to the JVC RS1.
When it comes to the cooler settings for watching TV/HDTV, both projectors again
excellent. I don’t normally measure grayscale for settings not intended for movies, so I can’t quote the IRE color temperature numbers for TV. I would put the two about tie, on HDTV sources that I viewed. Jay Leno’s skin tones (HDTV) never looked 100% perfect on either, but both were very close, and I couldn’t pick a winner. Of course, in the searching for ultimate perfection for HDTV watching, the Sharp has the control advantage with more ability to fine tune the many aspects of color handling.
Having just said that, the JVC still should provide a more even color temperature across the grayscale (remember that 70K shift), but, If the Sharp holds to its 250K, no one will be complaining, and it can probably be improved slightly.
The big win goes to Sharp for providing the tools to fine tune color and gamma, but, in all fairness, the JVC seems to not need those controls, it is just that good out of the box.
So, all of you who’s dream projector is one that is virtually flawless out of the box, and never want to fuss, are going to love the JVC. Conversely, those who love the technology as much as the movies, and would be frustrated without a million controls to play with, will favor the Sharp.
Editor's note: As frequent visitors to our reviews have learned, our reviews and comparisons are not written for the really hard core "purist" who will do anything and everything, to get the most perfect picture possible. There are other reviews, and better still, advanced user forums, for those demanding the last ounce of perfection out of their projector. In fact, we do not run a full set of measurements of everything that affects the picture quality, concentrating instead on brightness, grayscale balance, and black levels/shadow detail. If you get into more advanced discussions, you'll find talk of overdriven color saturation (the JVC, for example has been accused of slightly overdriven - oversaturated greens), and other such things. We choose to leave that to others to measure, report on, and debate.
We write for what we see as our target readership. Those who simply want a great projected image, and are not going to do all the things required to get that last 2%-3% out of their projector. Plan B, of course, for our readers who do want the maximum performance, but really aren't into the technology, nore want to be, is to hire a professional calibrator, to maximize the projector's performance, overall, and more specifically, in the room it will be used in. We know from feedback that even the most hardcore folks do find useful information in our reviews (although we are regularly scolded for only going so far), so we are pleased to have even the fanatics read our content. Still, let's say, we focus more on the home theater projector "mainstream" buyers and enthusiasts. I say enthusiast here, because the real masses (non enthusiasts) tend to stick to their much smaller plasmas and LCDTV's.
Time to move on, next is the warranty page - it takes a minute to read, and this time, there is something really important, worth noting!