JVC RS4500 (native 4K laser projector)

[AVSCraig]

I watched " The Martian " on 4K BR last night. I've seen this movie several times - first at a 4K Dolby Digital cinema at Cedia in 2015. Then I watched it on my Sony VW600, and then on my ( then ) new JVC RS600. Parts of this movie ( on Blu Ray were also useful when comparing the VW600 to the RS600. I must have flipped back and forth trying to get video noise / film grain to look close on both 2 dozen times !

When 4K Blu Rays first came out, I played along with everyone else trying to get the damn thing to look right on the Samsung 4K BR player and projector ( and with an HD Fury Integral ) in the beginning. And now, I finally sat down to watch it on my RS4500.  Using the HDR pre - set mode ( mid laser, dimming mode 2, manual iris -5 ), finally I can say that colors look correct and outstanding, and detail is incredible. There are a lot of shots in this movie - the Nasa control center where they have walls of screens, the crowd in the streets on Earth watching the final rescue, the shots of the Hermes in space - where detail looks sharper, crisper and cleaner than either the RS600 or VW600 can do. I can easily see fine details on Kristen Wiig's dress. That's the one thing I notice more than anything -

There were shots inside the Hermes when they prepare to slow the spacecraft down, where I could easily see some video noise on the RS600 ( 98% removed by taking the MPC settings down to 0 ). This was the video noise that drove some Sony owners out of their minds when switching to the RS500 / 600. Totally clean looking picture on the RS4500.

I swear, every projector I've owned has a slightly different look to it. The RS4500 is starting to remind me more of a 3 chip DLP with 4K resolution and DCI color, the more I watch it !

[AVSMike]

I watched " The Martian " on 4K BR last night. I've seen this movie several times - first at a 4K Dolby Digital cinema at Cedia in 2015. Then I watched it on my Sony VW600, and then on my ( then ) new JVC RS600. Parts of this movie ( on Blu Ray were also useful when comparing the VW600 to the RS600. I must have flipped back and forth trying to get video noise / film grain to look close on both 2 dozen times !

When 4K Blu Rays first came out, I played along with everyone else trying to get the damn thing to look right on the Samsung 4K BR player and projector ( and with an HD Fury Integral ) in the beginning. And now, I finally sat down to watch it on my RS4500.  Using the HDR pre - set mode ( mid laser, dimming mode 2, manual iris -5 ), finally I can say that colors look correct and outstanding, and detail is incredible. There are a lot of shots in this movie - the Nasa control center where they have walls of screens, the crowd in the streets on Earth watching the final rescue, the shots of the Hermes in space - where detail looks sharper, crisper and cleaner than either the RS600 or VW600 can do. I can easily see fine details on Kristen Wiig's dress. That's the one thing I notice more than anything -

There were shots inside the Hermes when they prepare to slow the spacecraft down, where I could easily see some video noise on the RS600 ( 98% removed by taking the MPC settings down to 0 ). This was the video noise that drove some Sony owners out of their minds when switching to the RS500 / 600. Totally clean looking picture on the RS4500.

I swear, every projector I've owned has a slightly different look to it. The RS4500 is starting to remind me more of a 3 chip DLP with 4K resolution and DCI color, the more I watch it !

You remember me telling you the same thing, several months back.

[AVSCraig]

I do - it's like my Sim Lumis Host mated with a Sony VW1100, and that offspring mated with an RS600, and the RS4500 is the result ! 

[AVSCraig]

Had a few people over today to check out my RS4500, including two forum members that own JVC projectors. Demo'd quite a bit of 4K material, including The Martian, Deadpool, Everest, Kingsman, and Blu Rays including Avatar and Eric Clapton Live at Madison Square Gardens. Everyone commented on how blacks and contrast looked excellent - far better than they thought based on " the numbers ". Also, they thought that 4K has a really clean, clear look on the RS4500.

Joe C. stayed and we watched some of Gravity, and Gravity in 3D ond other 3D ). One thing I noticed on my RS600 ( and to a lesser degree on my VW600 ) was some video noise watching Gravity ( the 2D Blu Ray version ). You can see it where the earths atmosphere and space come together for one. It wasn't present on the 3D Blu Ray with the RS600. Anyway, it's gone on the RS4500 - the picture looks a lot cleaner.

Everyone left and I watched The Revenant - one of my first 4K Blu Ray's I bought, which caused me to strip HDR out originally with the HD Fury Integral, since I didn't like what HDR did to the picture on my RS600. Watching using the HDR pre - set user mode on the RS4500 looked outstanding - it's really a treat to watch this beautifully shot film in HDR the way it's supposed to look ! That was my Sunday! 

[AVSCraig]

JVC is going to demo the RS4500 tomorrow at AVAD in Nashville on a 144" Black Diamond.

The projector is setup and the picture looks amazing!

Call AVAD to RSVP.

615-333-8353

AVAD
725 Airpark Center Dr.
Nashville, TN. 37217

Ask for Shawn.

Must RSVP.

[AVSMike]

RS4500 demo Thursday. Please RSVP.

AVAD Fort Lauderdale
3301 SW 42nd Street
Ft. Lauderdale, FL 33312
Phone: 954-358-4434

[John Schuermann]

Yet another update on an RS4500 demo Here is the tentative schedule for our Denver Home Theater Seminar events, March 11 and 12, 1 - 6 pm. Please keep in mind this is tentative and may change. Also please keep in mind that there will be a separate "breakout" room without a set schedule you can visit any time during the 1 - 6 pm show hours. Denver show is at the Tech Center Marriott.

1:00 - Introduction: What we will cover, introduce special guests Kris Deering of Sound and Vision and Gregg Loewen of Lion AV / THX

1:10 - Quick "Teaser" Demo of JVC DLA-RS4500, Stewart StudioTek 130, and JBL Synthesis sound system

1:15 - Introduction: Chris Deutsch of JVC - products on display

1:20 - Introduction: Robert Keeler of Stewart Filmscreen - products on display

1:25 - Brad and John of The Screening Room highlight audio products in both rooms supplied by JBL, Revel and Anthem

1:30 - JVC and Video Presentation #1 JVC projector technology, UHD, WCG, 4K

1:55 - UHD Demo

2:00 - BREAK

2:05 - Projectors vs. flat panels, more discussion of the latest video technologies

2:25 - How to get rid of black bars - aspect ratios

2:40 - Immersive Audio - Atmos, DTS-X, Auro - intro to JBL Synthesis and Revel

2:55 - Scope / 2.35:1 and Immersive Audio Demo

3:00 BREAK

3:05 Stewart Filmscreen and the big screen experience

3:10 Choosing the right screen material for the room and projector

3:25 Science vs. Snake Oil, plus discussion of the research undertaken by Dr. Floyd Toole and Dr. Sean Olive

3:45 Audio Demos / discussion

3:50 Home Theater Room Layout 1 - Video

4:00 BREAK

4:05 Home Theater Room Layout 2 - Audio

4:15 THX Video Calibration / Calibration - Gregg Loewen

4:35 Demos - UHD, Immersive Audio, Blu-ray

4:50 BREAK

5:00 Panel Discussion / Q&A, with Kris Deering (Sound and Vision), Gregg Loewen (THX), Chris Deutsch (JVC), Robert Keeler (Stewart Filmscreen), plus John Schuermann and Brad Waite of The Screening Room

6:00 End Credits roll

Main Seminar Room Equipment list:

JVC DLA-RS4500 THX Certified True 4K HDR Projector
Stewart Filmscreen 153" 2.35:1 StudioTek 130 Screen
Three JBL M2 Master Reference Monitors (LCR)
Four JBL LSR708i Master Reference Monitors (Side and Rear Surround)
Four Revel C763L Atmos Certified In-Ceiling Speakers (Height Channels)
Two JBL S2S-EX 15" subwoofers
Anthem AVM60 Pre-Amp Processor
Three JBL Synthesis SDA4600 amps
One JBL Synthesis SDA8300 amp
Oppo UDP203 UHD Blu-Ray Player
Kaleidescape Media Server

"Breakout Room" Equipment list (open for demos / discussion during show hours):

JVC DLA-RS620 Projector
Stewart Filmscreen 135" 16:9 PHANTOM High Ambient Light Rejecting Screen
Revel F208 Tower Speakers
Revel C208 Center Speaker
Revel M106 Bookshelf / Surround Speakers
Revel B112 Subwoofer
Anthem MRX720 Atmos Receiver
Emotiva XPA3 Amplifier

Please contact us directly at seminar@thescreeningroomav.com with any questions / RSVP. Thanks!

[AVSCraig]

That's a great line up of demos and home theater talent ! 

[AVSCraig]

I wanted to know more about the RS4500 and how laser works, so I asked a couple of questions -

Q - Since there are 48 laser diodes, and even if one or two go out ( malfunction ), the others continue to work - is there an internal diagnostic or way to determine if any laser diodes are not working? Maybe in the service menu ?

A - The current and temperature is monitored in the service menu on the LDs.


Q - I'm curious whether on / off cycles have any impact, like " lamp strikes " do on lamps, on longevity of the laser diodes.

A - There is no loss of light on turn on and turn off commands.  Loss of light output really depends on how you drive the LDs.

[AVSMike]

Took measurements to see what FL I am watching in. Only measured scope, since that would be the dimmest, vs 16:9 on my scope screen. For BD I use medium power and iris at 11. I am getting 17.4FL. For HDR I am using HDR preset with medium power and iris fully open. In this mode I am getting 35.7FL. If I go to high power mode, iris open, then I get 47.3FL.

[AVSMike]

A little bit of news. JVC has been listening to their customers and in the near future a firmware update is coming to address, what I would say are the main two issues, fan noise level and dynamic laser dimming. Really looking forward to the update. I currently use my unit in medium laser power mode for HDR (35/36FL), but I may have to consider high laser power (47FL) once we get this update. Also very excited about the improved dynamic dimming. Hopefully with the ease of a USB update we get more of these improvements.

[mark_h]

A little bit of news. JVC has been listening to their customers and in the near future a firmware update is coming to address, what I would say are the main two issues, fan noise level and dynamic laser dimming.

Interesting!  I just added a second vent, which significantly dropped the noise level in my room.  Today I'm going to dress the vents in some computer damping foam to see if I can lower the noise further.  Perhaps, combined with a firmware that lowers overall noise this beast will finally be tamed.

Will be interested to test any updates to laser dimming, but I haven't felt hard done by not using it thus far.

[AVSCraig]

Watched " Hacksaw Ridge " again last night with friends and my wife, who hadn't seen it. The movie looks amazing - really a great reference disc for this projector. A mighty fine film too I might add. I forgot I had left it on dimming mode 1 and manual iris -4 ( -4 is still plenty bright on my 128" diagonal 2.35:1 ST 130 screen, and helps a little with contrast ). Anyway, the night scenes in the foxhole on the battlefield looked outstanding. Superior detail compared to my previous setting of mode 2. 

[AVSMike]

Watched " Hacksaw Ridge " again last night with friends and my wife, who hadn't seen it. The movie looks amazing - really a great reference disc for this projector. A mighty fine film too I might add. I forgot I had left it on dimming mode 1 and manual iris -4 ( -4 is still plenty bright on my 128" diagonal 2.35:1 ST 130 screen, and helps a little with contrast ). Anyway, the night scenes in the foxhole on the battlefield looked outstanding. Superior detail compared to my previous setting of mode 2.

With HDR content, I have not been running the dynamic dimming. I am anxious to see what dynamic dimming looks like once the new firmware is released.

[AVSCraig]

With HDR content, I have not been running the dynamic dimming. I am anxious to see what dynamic dimming looks like once the new firmware is released.

You'll want to run it with movies like Star Trek or Jupiter Ascending - looks better IMO.