I just demoed the X30 and X90 in dedicated HT showrooms (using http://www.blu-ray.c...-Blu-ray/13943/ which I thought was an odd choice and to which I am also unfamilliar). The X30 was projecting onto a JP Morgan 100" fixed screen and it gave the best overall comparison to what I could expect at home. My impressions where: 1) colour and bright scenes were pleasing and looked pretty good 2) blacks were crushed, and suffered from "back crawl" (Given Owen's comments I was surprised at this but to be fair I've never seen the disk before either so it could be an issue with the source) 3)
JVC like to accentuate their good blacks but setting gamma high at low levels which makes shadows dark, if the viewing environment is not completely dark with zero light sources this comes across as black crush.
Gamma is however fully adjustable and you can get whatever look you want, it only takes a few minutes to bump up the lower end of the gamma curve.
As for "back crawl" I'm not sure what that is. The JVC DILA LCoS system uses pulse width modulated drive much like a Plasma or DLP and if you get right up close to the screen so you can see the individual pixels you can see this in action, however at any usable viewing distance its invisible.
It would be a good idea to take along a Bluray disk that you know well when evaluating performance.
some ambient light was OK in the room (had white walls but dark ceiling) but oddly they had some halogens mounted over the screen that washed out the picture. 4) the X90 "may" have been better with blacks but it was in a different room with an older "grey hawk" screen so it was hard to be objective Summary: I think I need to "relax" my expectations on the picture quality and on the versatility for these units. So....I figure at night, put up the screen, power up the PJ, open a good bottle of red and just kick back and enjoy some mindless block busters.....as if I start comparing it with the daytime performance of the Kuro I'm just going to be disappointed, regardless of what I'm going to be able to do.
If there was any light in the room the picture will be compromised and you wont see any difference in contrast/blacks between the X30 and much more expensive X90. Even one halogen with completely destroy image contrast with a white screen, that's why screen choice is absolutely vital.
The high gain Supernova and Black Diamond screens will give you an image that is over twice as bright as a normal white screen while at the same time maintaining much better blacks which is great for no dark viewing environments. With such a screen the Epson could proved a brighter image than the Kuro Plasma on a 100" screen, but for viewing in the dark a high gain screen and bright projector are an impediment as black level suffers. It's in the dark where the JVC's excel due to vastly superior contrast.
As far as I am concerned blacks and contrast with the X3 are only just good enough, anything less is just not acceptable for my use. The next projector I buy will have to be a lot better in that department.
A projector does not replace a TV for daytime or lights on viewing and will always look disappointing in a non dark environment, use a Plasma for such viewing. However at night with all lights off I would be very surprised if you did not find a good projector and suitable screen unbeatable.
Edited by Owen, 19 February 2012 - 03:05 PM.