JVC RS4500 (native 4K laser projector)

[mark_h]

I'll add also that the unit has quite a bit of fan noise in high laser mode...

Oh! :/ 

I really wish they exhausted out the back - at least that way the noise is directed away from the audience and not towards it...  I also noted in the manual that they mention the heat might cause a heat haze on the image - so, again, why not exhaust out the back where this wouldn't be an issue...?

[AVSCraig]

Though it is not listed on Chief's site. They do make a custom mount for the RS4500. I mentioned this early on in this thread. The mount is VCM105J. Kris is using this mount and has provided some pictures. Really like that it has so much adjustability, for centering the projector.

That thing is a beast.

[AVSCraig]

Oh! :/ 

I really wish they exhausted out the back - at least that way the noise is directed away from the audience and not towards it...  I also noted in the manual that they mention the heat might cause a heat haze on the image - so, again, why not exhaust out the back where this wouldn't be an issue...?

Sure would be helpful in my situation. I have a projector closet - it could blow out the back door instead of my having elaborate venting schemes !

[TonyD]

So this the new hangout? Nice little change from AVS.. nice to see some familiar faces (or names)

[AVSCraig]

So this the new hangout? Nice little change from AVS.. nice to see some familiar faces (or names)

Welcome Tony ! 

[Kris Deering]

Noticed some new things today. Looks like the 1080p to 4K scaling in the JVC is doing a better job than both the Oppo and the Lumagen. If I feed a single pixel 1080p pattern to the JVC it looks fantastic, this was one of the first things I checked simply because they always looked so horrific on the Sony's. With a Sony 4K you couldn't even make out the grid and there was a lot of green, pink and yellow banding throughout the image. With the JVC it looks spot on, no discoloration and the grid is clean with fine pixel details easy to see. If I scale the image using the Oppo 105D to 4K, you can still make out the grid but there is discoloration in certain parts. If I use the Lumagen Radiance Pro, there is banding and discoloration in the image and it reminded me of the Sony, though not quite as bad. So from what I've seen so far, the best move for 1080p content to the JVC is straight in and not scaled from an outside source.

[AVSCraig]

I know you indicated that sync times were the same, but i did see this on the " other forum " - " I will also just quickly say, while loading some more test patterns and 4K clips up, the HDMI sync time is a joy compared to JVC's of past. "

[ARROW-AV]

So this the new hangout? Nice little change from AVS.. nice to see some familiar faces (or names)

Yes indeed... This is where the party is at Tony, and where only the best people hang-out, so you are more than welcome!  

[Kris Deering]

I know you indicated that sync times were the same, but i did see this on the " other forum " - " I will also just quickly say, while loading some more test patterns and 4K clips up, the HDMI sync time is a joy compared to JVC's of past. "

I'm not seeing much difference in synch times in my setup, so maybe his is acting different than mine. I will investigate further with different signal paths and see if that makes a difference.

[TonyD]

Looking forward to some real world impressions of the RS4500. I expect mine to arrive late next week.

[ozhdht]

I'm not seeing much difference in synch times in my setup, so maybe his is acting different than mine. I will investigate further with different signal paths and see if that makes a difference.

I wouldn't say its lighting fast, but a definite improvement on the RS500/600. I was testing direct to the projector for testing with 4K discs and the sync timing there seemed a lot better than previously. When using passthrough with my McIntosh MX160 and HTPC, sync is improved by quite a few seconds. It's not lightning fast or anything, but enough to lessen the annoyance.

[AVSCraig]

Looking forward to some real world impressions of the RS4500. I expect mine to arrive late next week.

I'm hoping that mine arrives at late next week too!

[thebland]

Looking forward to measured light output. What is spec'd would work for me... but what's the real world output?? Congrats to those that have them!

[AVSMike]

Thanks for the headsup Mike! I believe this is not the 4K version but one of the other two... I will obtain confirmation on Tuesday. That said, he's changed at least one of the screens since my last visit so he may have installed the 4K version... But either with I will be taking comprehensive measurements that will encompass accurately measuring the screen gain as opposed to relying on the published figures which you can Craig have astutely pointed out are almost always so inaccurate that they are meaningless. So I will be measuring what is it's ACTUAL gain and not whatever B.S. figure is listed... But Sssshhhh don't tell MR SEYMOUR I said this!

And I am interested, what is your opinion on the performance of the EN4K as a material? It is in fact one of four that I have short-listed for assessment and so I would value your opinion... How would you rate it?

EN4K is a good AT screen. I would also take a look at V6 DreamScreen. Really like that material.

[ozhdht]

Looking forward to measured light output. What is spec'd would work for me... but what's the real world output?? Congrats to those that have them!

I dug up an old AEMC light meter from years ago and tried to take some readings. It proved pretty useless unfortunately as anything but next to the screen proved too much for it. I may purchase another one locally tomorrow if I get a chance and try again.