ProjectorCentral.com
WORLD'S LARGEST
PROJECTOR RESOURCE
Celebrating 20 Years
Top 10 Find a Projector Reviews Throw CalculatorCalc Buyer's Guide Expert Blogs Projector Forums
Share:

JVC DLA-NX7 4K D-ILA Projector Review

Editor's Choice
Performance
5
Features
Ease of Use
Value
Intended Use:
DIY Home Theater
JVC DLA-NX7 Projector JVC DLA-NX7
(add to Compare List)
Go to My Compare List

80000:1 Contrast Ratio
1900 Lumens
Full HD 3D
$8,995 Street Price

JVC DLA-NX7 Pros

  • Native 4K resolution and strikingly sharp focus
  • Outstanding black level and contrast
  • Effective Auto and Frame Adapt Tone-Mapping for HDR
  • Extensive picture adjustment menus
  • Quieter than last-gen JVC projectors

JVC DLA-NX7 Cons

  • Some sacrifice in black floor/contrast compared with last-gen JVCs
  • Poorly designed remote control

Our Take on the JVC DLA-NX7

With its new 4K D-ILA imagers—and superb contrast, color, and HDR—the DLA-NX7 reconfirms JVC's place near the pinnacle of home theater projection.



JVC DLA NX7 main

For much of the time I have covered front projection as a journalist, JVC's LCoS-driven projectors have been among the most sought-after for serious home theater enthusiasts. Many of the respected projector reviewers I've worked with in the enthusiast press eventually purchased one as their reference—"I bought the review sample" was a common refrain among colleagues—and some have gone through several generations. Admittedly, along with a few of the higher-end Sony projectors (also LCoS-based), the premium attached to the JVCs has made them less attainable for the average home theaterphile. Drawing a parallel with the world of automobiles, these projectors have played the role of the Porche's, Ferrari's, McClaren's, et. al., for the home theater world.

The interest in the JVCs and Sonys among those who care deeply about image quality is easily explained. As with televisions, contrast and black level in a projector are the holy grail. Accurate color is easy to engineer if the will is there, and every manufacturer has the ability to equip their product with a great lens and optics if cost is no object. Much of what separates the good from the very best dark-room home theater projectors today comes down to dynamic range. That doesn't mean you can't push brightness to attain higher contrast ratio (the difference between the darkest black and brightest white), and there are applications—such as ambient-light viewing—where higher brightness trumps the need for darker blacks. But, if the goal is to render a reasonably bright picture in a dark viewing room with a truly deep black, while also retaining subtle shadow details in the dark areas of the image, LCoS imaging devices like the D-ILA chips in JVC's projectors or the SXRD devices in Sony's are a good place to start. If well engineered, they attain a low native black level (among other positive attributes) that can then be enhanced with a dynamic iris or other light-modulating scheme to achieve a deep black on the most demanding dark scenes—one that doesn't call attention to itself with a gray haze over the image, or crushes shadow detail in the near-black region. A good, solid black will also show itself in brighter scenes as well, adding both dimensionality and a more organic, saturated look to colors.

All of this is to say that JVC had a reputation to protect in rolling out its new native 4K projectors after competing for several years with models using its e-shift pixel-shifting technology that delivers an approximation of 4K resolution with 1080p imagers. So how did they fare? Let's take a look.

JVC DLA-NX7 Key Features

JVC's consumer projector line for 2019 now includes six models in total, including four LCoS and two DLP projectors. All four of the LCoS models are native 4K with up to full-DCI, 4096 x 2160-pixel resolution. (Note that the DLA-X790/RS540, the one carryover from JVC's prior family of 4K-compliant, 1080p pixel-shifters, has now been discontinued). All the models have a professional-line equivalent sold through the integrator channel. The subject of this review is the third model from the top, the JVC DLA-NX7 (also the Procision DLA-RS2000) with 1,900 lumens, 80,000:1 rated native contrast (800,000:1 dynamic), and a $8,999 price tag (following a recent $1,000 hike). Priced at $9,000 less than the $17,999 DLA-NX9 (DLA-RS3000), it lacks that model's 8K e-shift pixel-shifting capability, but offers a big step up in contrast from the $5,999, DLA-NX5 (DLA-RS1000) with only 40,000:1 native contrast. The top model, the laser-driven DLA-RS4500 ($34,999), was introduced in January 2017 and has undergone significant upgrades via firmware as recently as last summer.

Though not as hefty as the 86-pound RS4500, the NX models are still large, solid projectors. All are approximately 20 inches square by 9 inches tall. The NX5 and NX7 weigh in at 44 pounds each, while the NX9, with its larger lens, tips the scale at 48 pounds and adds about an inch of depth compared with its smaller siblings.

The most obvious upgrade in the DLA-NX7 is the new 0.69-inch native 4K D-ILA imaging device, one each (as usual) for the red, green, and blue primaries. This configuration brings with it the benefits of equal white and color brightness as well as immunity from rainbow artifacts. JVC has also adopted its Wire Grid polarizer from some of its professional projectors to further deepen blacks. Additionally, the NX model projectors were all introduced with an important feature called Auto Tone-Mapping, and were recently upgraded via firmware to add a more advanced Frame Adapt HDR tone-mapping mode. These are both significant advancements over the manual HDR brightness controls provided by most projector manufacturers to accommodate the wide range of HDR content.

For those unfamiliar with how HDR works: HDR programs are mastered with brighter highlights than traditional high definition content—hence the "high dynamic range" moniker. The brightness limit for the HDR10 standard is 10,000 nits, and today's programs contain peaks of up to 4,000 nits that no consumer displays can yet reach—particularly projectors, which are brightness-challenged compared with flat-panels. So every display must apply a "tone-map" to adapt the HDR content to its own capabilities. The ideal is to tame the highlights just enough to retain visceral punch and detail in the bright areas while also maintaining good contrast in the dark parts of the image. Most projectors have an HDR brightness or gamma control typically limited to three or four stepped options; Epson recently introduced a 16-step slider for its newest projectors.

JVC projectors dating back to the last generation already offered more fine control over gamma for tuning HDR than I've seen on any other home theater projectors. Three key menu adjustments—Picture Tone, Dark Level, and Bright Level—respectively allow independent tweaking of the overall image brightness, just the dark shadow details, or just the bright highlights. Auto Tone-Mapping attempts to create ideal settings for these parameters for each individual title, based on two critical pieces of metadata found in most HDR10 programs. The first is MaxCLL (maximum content light level), which relays the highest peak brightness that occurs anywhere in the program, even for just a moment. The second bit of info is the average light level for the entire program, or MaxFALL (maximum frame-average light level). By reading the MaxCLL and MaxFALL information on the disc, the projector can make a solid, educated guess of the best tone-map and leave the viewer to just sit down and enjoy the movie instead of playing video engineer. Hardcore tweakers still have the option of tuning these controls, however, and the new projectors add a Mapping Level slider that modestly adjusts overall brightness up or down when Auto Tone-Mapping is active.

JVC DLA NX7 Top

Frame Adapt HDR tone-mapping was added to the DLA-NX9, NX7, and NX5 in October 2019. (Note that JVC had to remove the Pincushion Correction feature from the projectors to free up memory for the Frame Adapt feature, something that may affect some curved screen or anamorphic lens users who rely on this adjustment to achieve perfect geometry.) When activated in the menu, Frame Adapt foregoes the Auto Tone-Mapping scheme described above and instead relies entirely on a real-time analysis of the content to establish the ideal tone-map, on either a frame-by-frame or scene-by-scene basis. In essence, this functions loosely like dynamic metadata in a Dolby Vision HDR program to tune the tone-map to what's on screen at any given moment, with the key difference being that image settings for a given scene or frame with Dolby Vision would be established and signed off by the content creator rather than being estimated by an algorithm.

I'm aware of only two other projectors presently that have this kind of dynamic tone-mapping, both from LG Electronics: the HU85LA ultra-short throw laser projector we recently reviewed, and the new HU70LA LED projector we are currently evaluating. I did some extensive viewing tests with JVC's Auto Tone-Mapping and Frame Adapt HDR features, and also compared them with the Dynamic Tone Mapping feature on the HU85LA, which I'll say more about later.

Beyond these highlights, JVC developed a large, 65mm diameter, 17-element, 15-group all-glass lens for the DLA-NX7 and NX5. It is both stunning in its sharpness and edge-to-edge focus, and extremely uniform in its passage of light, measuring a very high 87% in our brightness uniformity test. Its generous zoom and shift capabilities should meet most installation environments. As an example, the 2.0x zoom can throw a 100-inch diagonal image from between just-under 10 feet to just over 20 feet. You can establish the throw range for your specific screen size with the ProjectorCentral JVC DLA-NX7 Projection Calculator. Substantial lens shift—a generous +/- 80% vertical and +/- 34% horizontal—is provided. The lens's motorized operation, including focus, provides a fine degree of control and seems to operate more quietly than JVC's last-gen projectors.

Finally, JVC also updated its remote control with this new line of projectors. It was a disappointment. Previous models came with a full-size, 9-inch wand offering raised, backlit buttons that provided a high degree of direct control over key menus and features, and was intuitive to work by feel alone. By comparison, the new 7-inch mini-remote looks slick and modern, but offers less direct access to adjustments and, critically, has a flat face with all the buttons positioned flush and adjacent to one another. This makes it prone to mis-strikes even in bright light, and very difficult to work by feel in the dark. Even with its backlight active, I found it frustrating to use. Fortunately, the remote from my own reference projector, a JVC DLA-X790, uses the same IR codes, so about halfway through my evaluation I tossed the new one aside.

Here's a more complete list of key features for the DLA-NX7:

  • 1,900 lumens rated brightness; measured 1,628 ANSI lumens
  • 80,000:1 native contrast ratio; 800,000:1 dynamic
  • Three 0.69-inch native 4K D-ILA imagers offering equal color/white brightness and immunity from rainbow artifacts.
  • 17-element, 15-group all-glass 65 mm diameter high quality lens
  • 2.0x motorized zoom with +/-80% vertical and +/- 34% horizontal shift
  • Vertical keystone correction
  • Two 18Gbps HDMI 2.0/HDCP 2.2 Inputs
  • ISF (Imaging Science Foundation) Licensed
  • HDR10/HLG Compatibility with Auto and Frame Adapt HDR Tone-Mapping
  • Wide color gamut specified at 100% DCI-P3; measured 98.8%
  • Clear Motion Drive frame interpolation
  • Multiple Pixel Control (MPC) detail enhancement; works with up to 4K60P (4:4:4) signals
  • Low Latency mode
  • 11 customizable picture modes with independent settings/lens positions
  • Anamorphic mode for use with third-party anamorphic lenses
  • Remote control via Control4 SDDP / LAN / RS-232C / IR / 12V Screen Trigger Output / 3D Sync Output
  • Full 3D compatible (requires separate PK-EM2 RF emitter, $99, and compatible RF shutter glasses)
  • 265 watt NSH lamp rated for 3,500 hours, 4,500 hours in Eco mode. Lamp replacements (PK-L2618U) cost $599
  • 3 Year Advanced Replacement Warranty
Next Page
Color Modes, SDR Viewing
Review Contents: Introduction, Features Color Modes, SDR Viewing HDR Viewing, 3D Viewing, Conclusion Measurements, Connections
 

You support ProjectorCentral when you buy
the JVC DLA-NX7 from these
authorized resellers.
Thank you!


OR get competitive price quotes
by email direct from JVC dealers

Get an E-Z Quote
Comments (12) Post a Comment
Mike Posted Nov 6, 2019 2:13 AM PST
Great review. Very helpful explanation of the way that tone mapping works. We’re you able to see any difference in the pin cushioning with the frame tone mapping on/off?
Rob Sabin, Editor Posted Nov 6, 2019 2:20 AM PST
No pin cushion option at all on the firmware-updated projector, Mike -- they removed that option entirely, and in any even it would not have been affected in any way by the tone mapping scheme. The pin cushion control applied a form of geometric distortion that can be be helpful for getting perfect screen alignment on large, curved 2.35:1 screens. I've also seen that function applied in situations where an anamorphic lens is used from a throw distance that's a bit too short for the lens; you can correct some of optical pincushion affect with that control. That said, we always recommend avoiding this kind of image correction, whether pin-cushion or keystone, to side-step the possibility of image degradation...especially on a very fine projector like this.
David Rivera Posted Nov 6, 2019 6:17 AM PST
Great projector, and fantastic review. Thorough evaluation and analysis of the NX7, thanks Rob. I have not seen the NX7 in action, but I did have the opportunity to see the jaw dropping image of the incredible NX9. Either projector would be a fantastic upgrade for any HT enthusiast that can afford their steep price tag. In my opinion they are superior to The Sony 4k projectors. Thanks again Rob.
Rob Sabin, Editor Posted Nov 6, 2019 6:26 AM PST
I've seen both models, David, though not side by side. My sense is that the differences are not really worth the significant extra cost for the NX9. The 8K pixel shifting is not said to provide a truly noticeable benefit on anything but very large screens based on what I've read -- though I'll leave the last word on that to folks who own the projector and have spent real time with it. And the additional contrast is probably not enough to make terribly much difference either. The NX9 does have a higher quality lens that probably provides some additional sharpness, but I found the NX7 tack sharp to begin with.
Steve Posted Nov 6, 2019 8:25 AM PST
Great review! Any information from direct comparison to your DLA-X790 would be greatly appreciated.
Wookie Groomer Posted Nov 6, 2019 8:42 AM PST
I'm probably better off sticking with the Epson 5050UB for a lens to screen distance of 20' on a 165" screen.
Kevin Gerwel Posted Nov 6, 2019 9:05 AM PST
Good review as always. Just wondering why you don’t post contrast measurements though?
Dennis Allaire Posted Nov 6, 2019 4:10 PM PST
Really enjoyed the review. I’m having the nx7 installed next week. If the nx9 had been laser driven I think it may have been worth the extra money. Looking forward to applying some of the settings you applied.
Adam Posted Nov 10, 2019 9:14 AM PST
Great review! Have you had a chance to compare it with the NX5, or do you plan to make a separate review of it?
Rob Sabin, Editor Posted Nov 10, 2019 9:17 AM PST
No immediate plans in motion to review the NX5, Adam, but knowing how much is sacrificed in stepping down from the NX7 is something we'd like to know, especially given the latter's recent price hike. Ultimately, it's primarily a significant reduction in specified contrast ratio, which is another way of saying black level here. This is something we'll look into in the coming months.
Warren Berry Posted Nov 11, 2019 1:00 PM PST
Outstanding review! Any hard numbers on the input lag in milliseconds? Asking as a gamer
Rob Sabin, Editor Posted Nov 11, 2019 1:21 PM PST
You'll find our input lag numbers on the Measurements page at the end of the review, Warren, though I've promised JVC I will recheck these since they came out a little slower than they expected. In any event, JVC is claiming best case scenario of 33.8 ms, which is okay for casual or in-house gaming but may be an issue in online competition in first-person shooters and the like. We measured around 50 ms.

Post a comment

Commenting on this article is easy and does not require any registration. Your email address is necessary for you to activate your comment once it has been submitted. It will not be shown to other site viewers. ProjectorCentral reserves the right to remove any comment at any time for any reason. Foul language is not permitted, nor are personal attacks. No HTML allowed. All comments should remain on topic.

Name:

Email Address:(used only to confirm your comment)

Your Comment:

(Enter the numbers as they appear to the left)