Marquee 8500 Screenshots..

All images are at 1920x1080P @ 60hz. Some are Xbox 360, and some HTPC. All are HDTV files.

The projector is not LC with HD-145 lenses. Coonections are all done RGBHV, from Xbox and HTPC. Screen width is 84" Dalite electric.

Ok, we'll shift a bit from 1080P and we'll post a few at 1920x1440P @ 60hz

1920x1440P shows somewhat compressed vertically.

1920x1080 @ 72hz


1920x1080p @ 72hz


1920x1080P @ 72hz

It's a combination of camera position and sizing (H/V) on the projector.

The 1080P images from the HTPC are more accurate, but the H linearity needs big attention.

1080P @ 72hz coming out of that same HTPC is wider, and may be off the screen on both sides a bit.

The Xbox is the bigger problem, because its 1080P timings are broke. And because of the broke timings, the image is displayed outside of the raster horizontally.

The 1440P images are shorter vertically, therefore I moved the camera up closer to the screen.


I've since removed the HTPC from the setup and will be running most things Xbox 360. My only hope with the Xbox is to see the timings fixed. That aside, it produces the best image (performance) I've seen today. However, for 1080P out of the Xbox 360 at its best, you'll have to remove the filters afetr the DAC. And once that's done, it'll put some finer noise on the screen when up close, but from a good seating distance, that noise is not there. Plus with the filters removed, the image is crystal clear. The problem I'm thinking with this, is that the fileter network was not electronically designed for 1920x1080P, and with the only changes being made to the unit being a resoltion upgrade, that would more likely create a problem for the lower resolution filters after the DAC. And that's where the softening comes in. Of all the video signals out there coming off a DAC. HDTV needs a specific filter for highest performance. And the same is true with my video card, and there is where that level of clarity is coming from.

yeah, that 8500 is just stupid with bandwidth.. I can't figure out where the sweet spot is. The higher up I go in scan rate, it will just paint the lines thinner.



Maybe the 1080P and 1440P would, but if you had the same sources hooked up that I'm using, you'll do very well at 1080P @ 60hz.

I've looked at your images very close. And being one that has made a hobby out of improving on the video chain, I had to first learn when a source was limited. And I can tell from your images that the NEC is very capable of more than what you're showing.

I am with Clarence, in that you do deserve the crown. because you've done a great thing there with a stock machine, and the setup was the best I've ever seen anyone post a screenshot of. I also do large screen presentation systems setups, and you've outdone me on that setup. And to pull it off with an NEC, is nothing short of remarkable.

The only short comings of CRT is the quality of the source material put on it's inputs. Most (if not all) of everything out there is not true HDTV at it's best for CRT. And the lastest and greatest processors are designed with emphasis on digital. So any analog out put would not have the benefit of being high end, because no ones using CRT projectors to evaluate the analog signal for the absolute best performance.

So we're stuck with super high performing display devices (CRT's) that are being limited from the quick use of a $0.15 analog DAC connection.

I dread the day that I have to finish tweaking that 8500..

My 8500 is different. Those changes are the result of some years of component level video chain tweaking.

And thanks to a special visit a year ago to VDC, Scott (tse) showed me a few tricks with tweaking for better bandwidth, and that allowed me to go further.




NEC's resolution specs are for the tubes (CRT) addressable resolution. It refers to how many lines the CRT is capable of, and this rule had nothing to do with the overall resolution performance of the projector. Electrohome focused more on the resolution capability of the video chain, though the addressabilty resolution of the tubes are about the same as the NEC's. Gary's XG has very powerful neck boards in it. Not sure of the rest of the video chain, so it could be equal or even better than a stock Marquee in bandwidth performance.

So because the addressability of the CRT's (tubes) are so high on all the better grade CRT projectors, the better number to watch for is Bandwidth. Bandwidth is what puts the resolve to the tubes.

Do you have the later version Moome card. The one that uses a better chip than the Sil thingy?

Maybe I should get one of his later version cards to look at. I have a previous one here, and there's nothing at all special about it. I think Cliff has one of his later verison cards, and from his screenshots, I can tell there's a difference from what i have here.