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LG CineBeam HU715Q 4K UHD Laser Review : The Projector That Puts LG On The Map | Tech Reviews

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LG CineBeam HU715Q 4K UHD Laser Review : The Projector That Puts LG On The Map | Tech Reviews



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Projectors represent a very interesting alternative to televisions of 75 inches or more. They do not fit in all usage scenarios, but when they do they can offer us a significantly lower cost per inch than some TVs, especially if the latter are high-end.

Sony, Panasonic, Samsung, Philips and LG are some of the television manufacturers that have not missed the opportunity to introduce the latest projectors in their portfolio. The one we are about to review is an ultra-short throw device equipped with a DMD array with native 4K UHD resolution and a laser light source that adds to LG’s high-end projector offering.

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This brand has other ambitious home theater solutions, such as, for example, the wonderful 4K UHD HU810PW laser projector , although it is the protagonist of this analysis that somehow consolidates its presence in the high range . And it does so not only because of its benefits; also because it has been designed to facilitate its installation in domestic spaces where a conventional projector hardly has a place.

Its optics allow us to project a 100-inch image at a distance of only 21.7 cm (moving it a little further from the projection screen we can reach 120 inches). In addition, its 2500 ANSI lumens allow it to perform well, although without fanfare, in spaces with some ambient light. It can also handle HDR10 content and has HDMI 2.1 connectivity . In any case, these specifications only invite us to scratch the surface. Under the hood of this projector there is more. Much more.

LG CineBeam HU715Q 4K UHD Laser: technical specifications

IMAGING TECHNOLOGY 4K UHD DLP with 0.47-inch Texas Instruments DMD chip
NATIVE RESOLUTION 3840 x 2160 points
LIGHTING SOURCE Laser / B-LD (105 Watts) + P/W
CONTRAST RATIO 2 000 000:1
TIPSY (ANSI) 2500 lumens
SCREEN SIZE 80 to 120 inches
TYPICAL NOISE 30 dB (bright mode)

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28 dB (power saving mode)

26dB (eco mode)

FOCUS SYSTEM motorized
LIGHT SOURCE DURATION 20,000 hours (bright mode)

30,000 hours (eco mode)

PROCESSOR quad core
SOUND Stereo

20 + 20 watts

CONNECTIVITY 1 x HDMI 2.1, 2 x HDMI 2.0, 2 x USB, 1 x salida audio digital óptica y 1 x Gigabit Ethernet


DIMENSIONS 533 x 315 x 153 mm
WEIGHT 11,1 kg
PRICE 2549.34 euros


These are the strengths of laser light sources

This is an ultra-short throw projector, as we have just seen, so we can place it very close to the surface on which we want to project the images. The merit of this feature lies largely in the optics of the projector because it manages to expand the image restored by the DMD chip, introducing an acceptable distortion and largely rectifiable through the adjustment options included in the menu.

Sure, this is an important feature because it makes locating this device so much easier, but the spec that makes it really interesting is its laser light source. The adoption of this technology entails important advantages that allow the projectors that use it to outperform the devices that use mercury vapor lamps, which is the most frequent option due to its lower price . These are the most attractive advantages offered by laser projectors:

  • The service life of the laser light source is very long. LG advertises a lifetime of over 30,000 hours in eco mode, and this is not an unreasonable figure at all because some ALPD laser light sources have a lifetime of up to 60,000 hours. Mercury vapor lamps rarely manage to exceed 6,000 hours of use at best when in low power mode.
  • Its start-up is faster than that of projectors with a mercury vapor lamp. These latter sources need the gas they contain to reach a high temperature in order to emit light, and this heating process usually takes some time. Some lamps take more than a minute to perform at full capacity. The startup of laser projectors, however, is much faster because the light source is available in a few seconds.

  • The light delivery capacity of a laser source is usually significantly greater than that of a mercury vapor lamp. The brightness level of the latter is usually between 2,000 and 2,500 lumens, while some laser projectors exceed 5,000 lumens . This greater light delivery capacity allows us to use the device in spaces with more ambient light. And, in addition, it has a clear impact on the quality of HDR because it can contribute to recover more information in the brightest areas as long as, yes, the brightness management is adequate. A few lines above we have seen that this LG projector has a light delivery capacity of 2500 ANSI lumens, a moderate value for a laser source. Later we will check how it performs in spaces with ambient light.
  • The quality of the light delivered by laser sources practically does not degrade throughout its useful life. However, the light emitted by mercury vapor lamps degrades noticeably. Once 80% of its useful life has been exceeded, the luminosity delivery capacity of these latest lamps is clearly reduced, which can have a significant impact on our experience.

  • A direct consequence of the long lifespan of laser light sources is that projectors using them require little maintenance. In this context they are not very different from televisions. It is enough that we simply worry about keeping the ventilation slots clean to allow the hot air inside the projector to be properly renewed with cold air from outside.

LG offers us the same experience of its televisions. And if it works

The adjustment parameters that this projector puts at our fingertips to help us get the most out of it are comparable in their ambition to those that we can find in a TV of the latest generation from LG. It comes reasonably well calibrated from the factory, but the ideal is that we fine-tune these settings ourselves, keeping in mind the characteristics of the surface on which we are going to project (there are very important differences between some projection screens and others).

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As we will see in the section in which we will analyze its image quality, when using the filmmaker mode, this projector gives us very deep blacks and manages to recover a lot of detail in the shadow regions. Of course, in my opinion the parameter that acts on the brightness level has an excessively conservative value, so I have been forced to increase it perceptibly so that the images acquire the richness that I like.

Anyone who wants to get the most out of this projector will be right if they resort to a professional calibration tool and probe. On the other hand, the approach that it offers us is motorized and precise, so it is easy to leave it impeccable. Finally, critical image geometry adjustment can be performed using up to 15 actuation points , so keystone correction can be dealt with precisely. In this section I have nothing to object.

The operating system that LG has integrated into this projector is webOS 6.0 , so it is essentially identical to what we can find in the televisions that this brand placed in stores last year, such as the still very interesting OLED C1 . The hardware in this device moves the interface lightly, though perhaps not as nimbly as LG’s OLED TVs.

In any case, the experience that it offers us when we move through the interface and launch applications is very satisfactory and almost traced to the one that this brand’s televisions give us. And if we stick to its webOS design, I like it, although both this operating system and Tizen OS and Google TV, which are its most relevant alternatives, have reached a very remarkable maturity , so all three offer us a well-cared experience.

The connectivity that this projector offers us fits well in a device with a domestic vocation. It has three HDMI inputs (although only one of them implements the 2.1 standard ), two USB connectors, an optical digital audio output, and a Gigabit Ethernet port. It also implements Wi-Fi and Bluetooth connectivity, although, interestingly, LG does not specify which versions of these standards it has developed in this device.

The remote control that LG gives us together with this projector is practically traced to that of its televisions. Its ergonomics is well resolved, and, unlike the TV remote control, in the lower part it incorporates three buttons that allow us to directly access the main image adjustment parameters.

I only have one drawback to this command: sometimes the pointer is not fine and it is a bit difficult to hit on that option on which you want to act. However, it is not serious because usually the problem disappears when we wait for the pointer to fade and shake the controller a bit to get it to appear again.

This is a full-fledged cinephile projector

To test the image quality of this projector, I used some of the movies on Blu-ray Disc and Blu-ray 4K that I usually use, among which it is worth highlighting ‘The Revenant’ , ‘The Arrival’ , ‘Interstellar ‘ , ‘Blade Runner 2049’ or ‘Spider-Man: Far from home’ , among others. I also used content from Netflix and YouTube that I know very well.

To play these movies I used an OPPO UDP-205 reader , a device that is now out of print , but which continues to stand out for the high quality of its transport mechanics and its audio and video processing logic.

The first thing I would like to repair is the high quality of the optical block that LG engineers have fine-tuned for this projector. I have tested it conscientiously for many hours, and in all the tests this optic has shown me not only that it is capable of restoring images with great sharpness; It also manages to keep chromatic aberration under control and distributes light with exemplary uniformity. In the specifications, LG promises us a uniformity of more than 85%, and I firmly believe that this figure reflects its real performance well.

Before moving on, it is worth making a small point: I have made an effort so that the photographs that we publish in this section of the article accurately reflect the image quality of this projector. Even so, in some of them a slight geometric distortion can be seen , but this projector is not responsible; it is the optics of the camera that we have used to take these images (although it is a good quality ZEISS optics).

The photographs that we publish in this section of the article reflect quite well the outstanding native contrast ratio that this projector gives us. This is one of the tricks that DLP devices have on paper, and yes, in practice this LG proposal is up to the task . Otherwise the photograph that we publish below would have given it away. Dynamic iris often doesn’t resolve an image like this properly if it’s not backed up by high native contrast, but this projector did well in this test.

A relevant note before moving on: these photos do not accurately reflect the level of detail that this projector manages to recover in the shadow regions. In fact, it retrieves more information than the photos suggest, although in this area it is not the best I have tried. Its level is very high, but my reference is still the most refined projectors with LCoS technology that Sony and JVC have in their portfolio.

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On the other hand, when it comes to colorimetry, this projector performs great. According to LG it is capable of restoring 86% of the color volume of the DCI-P3 space . There is no doubt that it would be preferable if it covered 100% of this color space, but if it is calibrated correctly, it gives us images with vivid and faithful tones. In this area it is not the best I have seen, but, again, its level is high.

Another section in which this projector gets a good grade is the management of movement. There is n’t a trace of judder(it’s a defect that causes images to be unsmooth), but what I like the most is that it manages to give our films a very cinematographic aesthetic that, honestly, I love because we It conveys sensations very similar to those we experience in a good movie theater. Another point in favor of this device.

And, finally, we come to an important section that users are interested in keeping in mind before buying a projector: its maximum brightness delivery capacity. The 2500 ANSI lumens of this device are not bad at all, but its performance in ambient light drops. It can live with a little ambient light, but if it is excessive, our experience will go to waste because the images it projects will acquire a washed-out appearance.

To get the most out of it, the ideal is to be completely in the dark , and if it is not possible, it is best to dim the ambient light as much as possible to allow it to express itself correctly. On the other hand, its moderate light delivery capacity is suitable for HDR10 content , but it does not impress as much in this area as devices that have a more ambitious light source.

In the specifications of this projector, LG announces a maximum consumption of 350 watts, and, curiously, during our tests we have measured values ​​clearly lower than this. In fact, the typical consumption that we have identified is between 240 and 250 watts . These figures support the honesty of this manufacturer, and, furthermore, they are especially appreciated at a time when we are paying more expensive electricity than ever.

It is comfortable with games, but does not have the last word

To test the gaming performance of this projector, I turned to our Xbox Series X and several titles that are very latency sensitive, such as ‘Mortal Kombat X’ , ‘Forza Horizon 4’ , ‘Gears 5’ and ‘Ori and the Will of God’ . the Wisps’ .

Good news for gamers: it incorporates a game mode, and also the optimization panel that LG TVs offer us . From it we can consult and act on the most relevant parameters in this scenario of use. In addition, its image quality with games is very high , so everything we have seen in the previous section still applies with games.

However, and I’m afraid this is not good news, the input latency that this projector gives us in gaming mode is somewhat high. During my tests I have measured approximately 50 ms , a figure that allows us to enjoy a good part of the titles if we moderate our demands.

For occasional gaming this latency is not bad, but it is too high for advanced gamers who spend a lot of time playing action or fighting games, among other genres that are especially sensitive to latency.

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Its sound has surprised us. Wow!

Although LG does not offer us much information about the transducers that are responsible for reproducing the sound in this projector, we know that it incorporates two 20-watt class D amplifiers that are responsible for driving as many speakers. Beyond the technical details, what is really important is that this projector sounds good. Unusually good.

Of course, a good sound bar, or, better yet, a dedicated multichannel system, offers us a broader soundstage and more visceral audio. Even so, this projector gives us a dynamic sound , an unusually deep low end and a sound pressure level suitable for the most fast-paced action sequences.

An interesting point that is worth not overlooking: we can connect some speakers to reproduce the effects channels using a Bluetooth link.

LG CineBeam HU715Q 4K UHD Laser: Xataka’s opinion

For home cinema this projector seems to us a very solid option. As we have seen, its overall image quality is very high , although in this area it is worth noting the outstanding execution of its optical block and its high native contrast ratio. We also really liked the experience offered by webOS 6.0 and the care with which LG technicians have implemented the parameters that allow us to act on image quality.

In addition, as we have seen, its sound has a good level , so if we are not particularly demanding in this section, we will not need to resort to a sound bar or external equipment. In fact, it rivals the audio quality of a good mid-range soundbar. Still, there are several areas where this projector has room for improvement.

On the one hand, its 2,500 ANSI lumens do not make it compatible with spaces in which ambient light abounds. We also miss the fact that all three HDMI inputs implement the 2.1 standard , lower input latency when gaming mode is enabled, and finally, we can’t overlook the lack of precision that the remote sometimes suffers from. distance. Obviously this projector isn’t perfect, but we find it to be an outstanding option for cinema , and not so appealing for gaming. In these coordinates we are convinced that it has a lot to say.



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A full time tech enthusiast with a passion for writing. Religiously follow everything new happening in the tech world and share my two cents with my audience here.

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