JVC DLA-NZ9 8K D-ILA Projector Review Test Bench

Test Bench

Measurements were taken in a variety of conditions with the bulk taken in the Natural picture preset with 6500 color temperature selected and the REC709 color profile. The selected gamma preset was 2.2. Calibration was performed with dynamic laser modes disabled and the contrast ratio measurements taken in various modes as noted. All viewing and measurements were done with a 140-inch diagonal 2.35:1 Stewart StudioTek 130 (G4) screen (1.3 gain).

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The full on/off contrast was measured with a Minolta T-10 meter approximately 1 meter away from the lens face. I tested the projector in various aperture settings and with the dynamic laser modes 1 and 2 for dynamic contrast measurements. Refer to the table for details on the contrast results and measurements at different average display levels. Peak native sequential contrast varied based on the throw of the projector with the peak reading of 51,000:1 (aperture open) and 123,000:1 (aperture closed) coming from the longest throw. The table lists the contrast in the throw I used for the review, closer to the max zoom (short throw) of the projector in its out-of-the-box best calibrated state (Natural picture mode).

The calibration data was captured from a workflow in Calman 2020 from Portrait Displays (portrait.com). SDR calibration was measured with REC709 and a gamma of 2.2 for targets.

The color gamut in Rec.709 was good with no value exceeding a Delta E (dE) of 4. No adjustments were needed in the color management system after grayscale was dialed in and all colors were well below a dE of 2. Luminance and saturation values throughout the inner gamut were also very accurate. Grayscale/gamma before calibration had an average dE of 4.5 but an average of 0.8 after calibration with no level exceeding a dE of 2. Overall, this is excellent performance and in line with other projectors at this price point. I would like to see JVC add a multi-point grayscale adjustment with 11 or more points, like we see with flat-panel TVs, but the company does offer free auto calibration software that provides greater flexibility than the standard menu controls.

Scaling artifacts were minimal overall and in line with what I've seen from previous JVC projectors. De-interlacing HD signals in 1080i was a bit disappointing, with most of the tests on the Spears & Munsil test disc failing even the most basic cadences. It is rare to find interlaced signals from most modern output devices these days, but some cable boxes and over-the-air broadcasts are still in 1080i (which is crazy, by the way), so resolution may be compromised in these situations.—KRD

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COMMENTS
mars2k's picture

When I read projector reviews with comparisons between laser and incandescent sources laser gets short sheeted pretty consistantly. This review's example would be the brief mention regarding the convenience of turning the machine off.
Holy cow if image quaity is the same then laser light sources offer more than that. How about 10x the life span, that is if you never ever turn the machine off to quickly or suffer a power outage. Those damn bulbs cost $300 each, times 10 thats about $3000. Convenience? You wanna talk convenience? How about not having to change your bulb 10 times? That's a big deal even without ceiling mounting.
Can you say total cost of ownership?

kevinritchey@live.com's picture

I often shudder now whenever I see a JVC product being reviewed or tested. I have my own history with JVC A/V products both up and down the production line having sold and represented them for decades. I’m happy when I see good things being said about an old friend but JVC has performed such a horrible job of marketing their devices in the vast consumer field particularly in the US. Only the upper echelons receive good ratings as most of the lower tiers are farmed out to often sketchy manufacturers who damage the name. It’s been a trend for years and has created a reputation for marginalized products. It’s good to see something built with some purposeful excellence but sad that you have to spend $25k to obtain it. I don’t see this hitting a Walmart shelf anytime soon next to other JVC video products (thanking the video Gods).

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