JVC DLA-X70R 4K Projector review: JVC DLA-X70R 4K Projector

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The Good Amongst the best picture quality available in 2D. Easy installation with powered everything. Resolution-enhancement technology for smoother edges. Exceptionally deep blacks in all circumstances.

The Bad Quite pricey. Some crosstalk on 3D. 3D requires additional expenditure on peripherals.

The Bottom Line The JVC DLA-X70R home-theatre projector delivers a glorious picture in 2D, with the deepest blacks available, but it isn't the strongest at 3D.

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7.4 Overall

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This is one heavy machine, at over 15 kilograms. It's also big, but its clean lines and black finish make it less obtrusive.

This projector is something new in my experience: it is a 4K projector. Rather than 1920x1080 pixels (full HD), this offers 3840x2160 pixels of output resolution, or double in both dimensions, for a four-fold increase in total.

However, its three D-ILA (JVC's version of LCoS) panels only offer the regular full HD number of pixels. It gets the higher resolution by double exposing the panels, electronically shifting the image diagonally by about half a pixel (0.71 pixel widths, if my maths is correct) for every second one, alternating between the two at 120 times per second (presumably 100 times, in the case of Australian 50-hertz content).

The projector does not accept 4K signals. It uses its higher resolution to smooth diagonal and curved edges of full HD content.

The projector has powered everything: zoom, focus, lens shift (horizontal and vertical) and even its lens protection retracts automatically when switched on, and closes again when switched off.

The purchase price does not include 3D paraphernalia, though. For 3D, you will need the 3D sync transmitter, which plugs in to the projector (AU$149), and one or more pairs of 3D glasses (AU$198 each). The glasses come with a USB cable to charge them, rather than using disposable button battery cells.

2D performance

The projector started up in what it calls "Normal" lamp mode, which means that the lamp was switched down to 160 watts. You can also use "High", which bumps it up to 220 watts, increasing the cooling fan noise and reducing the life of the lamp. In general, the "Normal" mode was excellent (it goes up automatically to "High" for 3D), giving plenty of brightness in my darkened office.

The projector was extremely quiet in that mode, with the cooling fan noise additionally dampened by the bulk of the unit.

The colour was beautiful, based as it was on extraordinary black levels. This projector has a contrast ratio claim of 80,000:1 natively. There is no dynamic iris. With a full black screen, there was almost no breakthrough of light. Even better, on my test patterns in which one small part of the screen is full white while the rest is full black, the farthest black extremities retained their full blackness — something that can't usually be achieved with a dynamic iris.