DLA-RS20 vs. InFocus IN83
Very interesting competition here. The IN83 is an excellent DLP projector with Darkchip4. The IN83 I have here still does the best overall color of any of the current 1080p projectors I've reviewed, doing our normal calibration. Even with the CMS settings we are using for the RS20 (and we didn't do anything but grayscale balance, brightness, contrast and gamma, for the IN83), the InFocus still has the advantage in skin tones and overall color. It's the kind of difference where the RS20 looks great, and everyone is happy, until put side by side with the IN83, then it's - the RS20 looks great, but the IN83 does better.
That's only until you hit the first dark scene, and the JVC RS20's black levels just destroy the IN83's best on those dark scenes. Black levels aren't even close, as you can see from these three side by side images. The first is simply a black image (between scenes). Since neither projector uses a dynamic iris, what you see, is what you get. Remember we overexpose these images (to varying degrees) to make the differences easy to see (JVC is on the right side in all of these images):
This is an excellent example of the difference in black level handling between these two. The first pair is more overexposed to show differences, the second is closer to what you will see on your screen: