NEW JVC RS3000/NX9 RS2000/N7 RS1000/N5 Native 4K Projectors Anticipation Thread - Page 228 - AVS Forum | Home Theater Discussions And Reviews
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post #6811 of 13660 Old 10-15-2018, 04:33 PM
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Quote:
Originally Posted by ScottieBoysName View Post
What’s the weak link there?
This part is what is only rated to 50lbs: RPA.

Quote:
Originally Posted by Craig Peer View Post
Make sure the ceiling plate is lag screwed to solid backing / blocking, and there really won't be a weak link. They probably underrate it.
True, but you wouldn't spec this mount for an RS4500 Ultimately the projector is hanging from the RPA by six little 10-24 threads.

Last edited by dlinsley; 10-15-2018 at 04:42 PM.
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post #6812 of 13660 Old 10-15-2018, 04:35 PM
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Originally Posted by dlinsley View Post
This part is what is only rated to 50lbs: RPA.
The 4 bolts that hold the plate are probably the least strong, but I bet they could still hold a 200 man hanging on the mount with no problem.
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post #6813 of 13660 Old 10-15-2018, 04:36 PM
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Originally Posted by Bytehoven View Post
The weak point is where/how you secure to the ceiling. 4 flange bolts is ok, but if you thru bolt the flange to a piece of 3/4" plywood, which you secure to the ceiling, it makes for a more stable setup.

I'd note I installed ceiling reinforcement during construction.
Yep, do it once, never have to do it again.......

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Originally Posted by microwiz View Post
If anyone is worried about being so close to 50 lbs with their Rs3000 i would be willing to send my future rs2000 in trade so you breath easy knowing your at a safe weight. Im doing this because im a nice guy.
I hear ya

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Originally Posted by markmon1 View Post
Those weight limits are funny. You could do pull ups on that mount without ripping it out of the ceiling.
That's how I test my work when I am done
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post #6814 of 13660 Old 10-15-2018, 04:37 PM
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Originally Posted by markmon1 View Post
Those weight limits are funny. You could do pull ups on that mount without ripping it out of the ceiling.
You bet. I'm sure lawyers insisted on the rating.
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post #6815 of 13660 Old 10-15-2018, 04:38 PM
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Originally Posted by ScottieBoysName View Post
That edge work is nice.
It's t-molding. You just route in a groove on the sides and hammer it in. https://www.t-molding.com/3-4in-black-t-molding.html

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post #6816 of 13660 Old 10-15-2018, 04:39 PM
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Originally Posted by Cleveland Plasma View Post
Yep, do it once, never have to do it again.......

I hear ya

That's how I test my work when I am done

LOL. Yup. My sofits and pj mount could probably hold a 400 lb guy indefinitely. I run a chief mount currently and there is no way a 50lb pj is going to come crashing down. There is plenty of fudge factor built in there. The rating is strictly for CYA.

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post #6817 of 13660 Old 10-15-2018, 04:41 PM
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Quote:
Originally Posted by Craig Peer View Post
The 4 bolts that hold the plate are probably the least strong, but I bet they could still hold a 200 man hanging on the mount with no problem.
Yeah, thanks for nothing. I just went and tested my Chief mount per your directions and hung from it

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post #6818 of 13660 Old 10-15-2018, 04:45 PM
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Quote:
Originally Posted by Craig Peer View Post
Make sure the ceiling plate is lag screwed to solid backing / blocking, and there really won't be a weak link. They probably underrate it.


I’ll be mounting it on a ceiling joist most likely.
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post #6819 of 13660 Old 10-15-2018, 04:45 PM
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Originally Posted by dlinsley View Post
This part is what is only rated to 50lbs: RPA.







True, but you wouldn't spec this mount for an RS4500 Ultimately the projector is hanging from the RPA by six little 10-24 threads.


Is there another mount or part that’s sturdier than that? Or another suggestion you have besides making my own box?
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post #6820 of 13660 Old 10-15-2018, 04:46 PM
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Originally Posted by markmon1 View Post
It's t-molding. You just route in a groove on the sides and hammer it in. https://www.t-molding.com/3-4in-black-t-molding.html


It looks really good.
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post #6821 of 13660 Old 10-15-2018, 04:48 PM
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Quote:
Originally Posted by Craig Peer View Post
The 4 bolts that hold the plate are probably the least strong, but I bet they could still hold a 200 man hanging on the mount with no problem.
Absolutely for the ceiling plate (which is rated for 500lbs when lagged in) and if I held on to the RPA, but ultimately the projector is hanging from the RPA by six little 10-24 threads. If it's 50lb rated, then yeah say 60 with a lens is going to be (hopefully) ok too, but no one has ever trusted a 90lb RS4500 right? That's still way less than the 200lb man.
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post #6822 of 13660 Old 10-15-2018, 04:52 PM
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Originally Posted by markmon1 View Post
If you get rid of all those curtains you can get that scope screen to fill your whole wall Whats going on here!?!
I only have a 13.85' throw distance. But that's OK, because I just sit closer and have 47 foot lamberts on my 128" diagonal Studiotek 130 for HDR ( and 25 foot lamberts for Blu-ray ) ! I like it bright.
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post #6823 of 13660 Old 10-15-2018, 04:59 PM
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Originally Posted by dlinsley View Post
Absolutely for the ceiling plate (which is rated for 500lbs when lagged in) and if I held on to the RPA, but ultimately the projector is hanging from the RPA by six little 10-24 threads. If it's 50lb rated, then yeah say 60 with a lens is going to be (hopefully) ok too, but no one has ever trusted a 90lb RS4500 right? That's still way less than the 200lb man.
Considering I've hung on rusty 10 year old 1/4" split shaft bolts - and bet my life on them, even six 10-24 threaded steel bolts together seem pretty damn strong. One, no. Six together, yes.
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post #6824 of 13660 Old 10-15-2018, 05:12 PM
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I built a port in the back, room was only 7 ft tall so felt it be to low to hang. Pretty happy in the end, shelf slides out for bulb changing.




That paint on the trim is super black but looks grey compared to the velvet lol.

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post #6825 of 13660 Old 10-15-2018, 05:48 PM
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Originally Posted by ScottieBoysName View Post
I have a Chief RPMAU that I plan on getting the adapter plate for, to mount my NX7. Are you saying that's a bad idea?
That is what you should do.
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post #6826 of 13660 Old 10-15-2018, 05:54 PM
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Originally Posted by Wizziwig View Post
What about streaming exclusive original 4K content from Netflix or Amazon? It's almost all 16x9. These days, there is more real 4K HDR (instead of upscaled 2K) on streaming than there is on discs.
Then there are 4K HDR video games - all 16x9..

Good question. Don't want to crop the good stuff either. I do crop on some content, and also use the anamorphic mode to shrink 16:9 into middle of "scope screen", which in reality is a semi permanently masked 16:9 screen.


First projects may be to motorize masking, and some type of lens transport, and hook em into JVC installation mode and/or universal remote. Then for the good 16:9 content can easily blow it up big, but for fluff 16:9 content shrink it down in scope.

So that's at least 3 slots in installation memory: Scope, big 16:9, little 16:9

Could possibly add 4th mode for cropped 16:9. It has some appeal since it will keep center of screen a bit lower

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post #6827 of 13660 Old 10-15-2018, 05:56 PM
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That is what you should do.
Aaaaand that's what I plan on doing with your help!

Off topic - what's the difference in the Chief mounts? RPMA vs RPMB vs RPMC? I picked up an RPMAU from you, which to my knowledge is the RPMA with the "U"niversal bracket.
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post #6828 of 13660 Old 10-15-2018, 05:58 PM
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Originally Posted by markmon1 View Post
The iris on my RS640 gets it so close to pure black I don't think any work needs to be done there. I can't see the edges of my screen or anything on a fade to black right now until about 10 seconds of pure black elapses. It's way different than hitting hide button, its way blacker. Hopefully the new series can get as close as that.
I have the same projector. If they have redesigned the lamp iris in the new series, that can work independently of the lens iris, to close down more in darker scenes, it may be beneficial. Next year they can program the same to fully close give full fade to black

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post #6829 of 13660 Old 10-15-2018, 06:02 PM
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Quote:
Originally Posted by dlinsley View Post
This part is what is only rated to 50lbs: RPA.



True, but you wouldn't spec this mount for an RS4500 Ultimately the projector is hanging from the RPA by six little 10-24 threads.
Tensile load for one grade 2 10-24 machine screw is 1,050 pounds, so I think six is plenty. You guys do realize that UL rated devices have a huge safety factor.
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post #6830 of 13660 Old 10-15-2018, 06:12 PM
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Originally Posted by ScottieBoysName View Post
Aaaaand that's what I plan on doing with your help!

Off topic - what's the difference in the Chief mounts? RPMA vs RPMB vs RPMC? I picked up an RPMAU from you, which to my knowledge is the RPMA with the "U"niversal bracket.
Keyed locking A, B or C. So different keys.
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post #6831 of 13660 Old 10-15-2018, 06:14 PM
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Originally Posted by Mike Garrett View Post
Keyed locking A, B or C. So different keys.

Got it. What's the point in having different ones? What problem does that solve?
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post #6832 of 13660 Old 10-15-2018, 06:14 PM
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Originally Posted by Highjinx View Post
I have the same projector. If they have redesigned the lamp iris in the new series, that can work independently of the lens iris, to close down more in darker scenes, it may be beneficial. Next year they can program the same to fully close give full fade to black
It sounds simple to just allow an iris to fully close for fully fade to black. I am sure if it was so simple, projector manufacturer's would already have been doing this. So I suspect there is a reason it is not done.
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post #6833 of 13660 Old 10-15-2018, 06:15 PM
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Question JVC Entry-level native 4K and lumens brightness

Well, before I saw this thread it was either fix the fan in my Epson-8350 or buy a JVC DLA-x590r . However, looks like now one of the projectors in this series might be a smarter buy (if I can swing it, money wise).

You guys seem to know a lot about projectors, so I hope it's OK to ask this here.

Why is it that all HDR projectors (under $5000) seem to be just average on the lumens output? Even the (out of my price range) JVC DLS-RS600 is 1900 lumens. And while laser-based is way-out of my price range, even entry-level laser is less than 1900 lumens. I feel like I'm missing something. Is 1900 lumens "Reference" or something?

I need to project 120-inches from 16ft. in a (non-light-controlled) multi-use room. The 3LCD-based 2000-lumen Epson-8350 seems to handle it but I was hoping for a bit more light for earlier-dusk viewings.

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post #6834 of 13660 Old 10-15-2018, 06:20 PM
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Originally Posted by ScottieBoysName View Post
Got it. What's the point in having different ones? What problem does that solve?
Let's say you are a school system and have projectors in different departments. You only want the math department to have control over the projectors in their section and the projectors in the History department controlled by the History department. So you get different keying for the different departments.
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post #6835 of 13660 Old 10-15-2018, 06:21 PM
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Originally Posted by Mike Garrett View Post
It sounds simple to just allow an iris to fully close for fully fade to black. I am sure if it was so simple, projector manufacturer's would already have been doing this. So I suspect there is a reason it is not done.
I don't think it's overly complicated. However some features, for marketing rea$on$, should be reserved for the top end.

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post #6836 of 13660 Old 10-15-2018, 06:23 PM
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Originally Posted by Mike Garrett View Post
Let's say you are a school system and have projectors in different departments. You only want the math department to have control over the projectors in their section and the projectors in the History department controlled by the History department. So you get different keying for the different departments.
:facepalm:


I need to go to bed. I should have guessed.
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post #6837 of 13660 Old 10-15-2018, 06:25 PM
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Originally Posted by Tesla1856 View Post
Well, before I saw this thread it was either fix the fan in my Epson-8350 or buy a JVC DLA-x590r . However, looks like now one of the projectors in this series might be a smarter buy (if I can swing it, money wise).

You guys seem to know a lot about projectors, so I hope it's OK to ask this here.

Why is it that all HDR projectors (under $5000) seem to be just average on the lumens output? Even the (out of my price range) JVC DLS-RS600 is 1900 lumens. And while laser-based is way-out of my price range, even entry-level laser is less than 1900 lumens. I feel like I'm missing something. Is 1900 lumens "Reference" or something?

I need to project 120-inches from 16ft. in a (non-light-controlled) multi-use room. The 3LCD-based 2000-lumen Epson-8350 seems to handle it but I was hoping for a bit more light for earlier-dusk viewings.
What mode do you use the 8350 in? Calibrated the 8350 did not have very many lumens. The JVC projectors are more than twice as bright calibrated.
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post #6838 of 13660 Old 10-15-2018, 06:27 PM
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Originally Posted by Mike Garrett View Post
Tensile load for one grade 2 10-24 machine screw is 1,050 pounds, so I think six is plenty. You guys do realize that UL rated devices have a huge safety factor.
Yes, it's just when they rate one part as 50 and another as 500, and we are talking of hanging $20k on them, it would be nice to know why the difference

If not safety, I wonder if the rating also feeds into the adjustment capability? When I had a Sanyo Z2 I used a Peerless ball-socket mount, and getting that square was easy. I then upgraded to an RS1, which weighed something like 6x the Z2 and the set screws just couldn't keep it from wanting to move back to its natural balance. I've had the same RPA since about a week later in 2007! The adjustments on the RPA are much beefier, as well as being easier to set up, but I could see them not being enough for the likes of the RS4500.
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post #6839 of 13660 Old 10-15-2018, 06:36 PM
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Originally Posted by Highjinx View Post
I have the same projector. If they have redesigned the lamp iris in the new series, that can work independently of the lens iris, to close down more in darker scenes, it may be beneficial. Next year they can program the same to fully close give full fade to black
This confusing to me. If you have the same projector I have, then why are you not finding the fade to blacks as dark as I am?

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post #6840 of 13660 Old 10-15-2018, 06:44 PM
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Originally Posted by Mike Garrett View Post
What mode do you use the 8350 in? Calibrated the 8350 did not have very many lumens. The JVC projectors are more than twice as bright calibrated.
So, the new screen will be 120-inches, but right now the projected-image is 96-inches. While I don't normally run them both concurrently, I can see the plasma to the bottom right. While neither are "professionally calibrated", the plasma is my "reference" and the images look virtually identical.

I have ECO-mode off, so I think I'm getting max lumens output. I use:
Dusk = Natural (Auto-Iris Off)
Night = Cinema (Auto-Iris On/Normal-speed)

Is that what you mean?

Epson 8350 3LCD Projector (96" @ 1080p) ~ Panasonic 850u 46" Plasma TV (1080p)
Onkyo TX-sr607 AVR ~ Cisco 8742hdc DVR (Spectrum) ~ Panasonic BD60 Blu-Ray Player
AppleTV-4 (iTunes,Plex,MA,Asphalt-8) ~ Simple Control HA ~ Alexa Echo Plus w/Hub
Harmony 670 Remote ~ HTPC (Kodi/Win10-64) Media-Server ~ Synology DS412+ 16tb Raid-5 NAS
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Last edited by Tesla1856; 10-15-2018 at 06:49 PM.
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