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post #1 of 16 Old 05-28-2019, 06:34 AM - Thread Starter
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BENQ TK800M Kraine's Review

BenQ TK800M Test: Gregory's (kraine) Opinion


With the BenQ TK800M test stand, the overview of the manufacturer's new 2019 series is now complete. All these projectors are equipped with the revised version of the DMD 0.47 chip, which reduces the "light frame" effect of the previous generation. Together we will see the changes to the newcomer compared to the first TK800 of the name marketed last year.

PRESENTATION

The TK800M is close to the original TK800, but its designers have made several changes, the most important being the replacement of the 0.47 chip with a 4K XPR simulation (X4) by a second generation model that is less affected by light pollution from unused pixels*.

(The native resolution of the DMD 0.47 chip is 2048×1200. To simulate a 4K image, only a reasonable resolution of 1920×1080 is used, where the pixels are reproduced at very high speed on 4 slightly offset axes (240Hz). This inconspicuous pretext for the human eye reduces the production costs of a native 4K chip. Unfortunately, the use of the first version was accompanied by a luminous frame surrounding the image. It is generated by the inactive pixel portion of the 2048×1200 chip, which uses only 1920×1080).

The optical space differs from that of the TK800 because we switch from a version with a projection ratio of 1.47 - 1.76 with a zoom of 1.2X (TK800) to a model with a zoom of 1.1x and a projection ratio of 1.50 - 1.65 (TK800M).

Another difference is that the newcomer adds Hybrid Log Gamma (HLG) compatibility, which the TK800 lacked.

The rest is unchanged with a 240W lamp and a 4-segment color wheel (RGBW) that allows the brightness to be increased to 3000 lumens at a contrast of 10 000:1 (according to the manufacturer).

The high brightness of the TK800M makes it ideal for table use in a non-dedicated room with two modes for broadcasting sports events (sports and football). These categories take us a bit away from our favourite field, home cinema, but we will see that the new BenQ, which is available for 1149€, can very well take care of the projection of your favourite blockbuster.

PHYSICAL TOUR

The TK800 does not differ from the "M" version in appearance and remote control. The blue front panel is always different from the W1700/W1720, zoom and focus are manual and the projector has no lens shift.

On the other hand, it is necessary to move the TK800M a few centimeters away from the screen to get at least the same image base as the TK800 with the zoom. Thus, for 2m50 of the 16:9 format base, a recoil between 3m75 and 4m12 is required for the TK800M compared to 3m67 and 4m40 for the TK800.

The placement range of the first version is therefore larger than that of the TK800M.

The BenQ TK800M projector features a 5-watt speaker with Cinemaster Audio+2 label and a selection of soundscapes. In terms of connectivity, the two HDMI jacks (only one is 4K compatible) are supported by 1 Computer In-1 jack (D-Sub 15-pin, female), 1 Input x1 USB Type A (power supply 1.5 A), x1 USB Type mini B (service), x1 Audio In (mini jack), x1 Audio Out (mini jack), x1 RS232 In (D-Sub 9-pin, male), x1 Trigger DC 12 V (3.5 mm female), and x1 RS232 In (D-Sub 9-pin, female).
The new BenQ supports 4K HDR-10 and HLG signals as well as 3D programs with DLP-Link glasses (optional) in 1080P.

The remote control supplied with the BenQ TK800 projector is white with red illumination. It is identical to the BenQ W1720/W2700, but many of its options are out of order (pixel enhancer, cinema module, etc.).

MENU

The TK800M is an advanced video processing or ISFccc certification authority and an entry-level projector.

The factory settings are divided as follows: "Bright, Vivid TV, Cinema, Sports, Football, 3D, HDR and two user memories". For the selection "HDR and 3D" they are activated only by the recognition of a corresponding signal.

To adjust the colors and gamma, the TK800M is equipped with gain and bias settings (color temperature), a CMS over the 3 dimensions of the gamut and predefined gamma values. Each of the factory settings can be edited, which increases the storage possibilities of the settings.

Video processing does not have a flow aid and the Master Cinema W5700/W2700/W2700/W1720 has disappeared. Once the projector detects a 4K signal, it allows access to a specific HDR brightness setting in 5 steps (one zero point and 2 negative and positive points). Do not expect to find the W2700/W5700's HDR auto mapping.
In contrast, lamp management is dynamic via the smart eco and eco.+ modes.


In contrast, lamp management is dynamic via the "smart eco" and "eco.+" modes. These two options adjust the luminous flux to the image content and extend the service life of the lamp to 15,000 hours (manufacturer's specifications).

TECHNICAL JUDGEMENT

Operating noises:

In terms of operating noise, the BenQ TK800M projector can disable XPR mode (4K simulation) through its "Silence" mode, but it is associated with the loss of 4K simulation and therefore operates at its 1080p resolution. In this configuration I could measure a very correct 32db. After resuming video processing, switching to low-lamp mode increases the sound level meter to 36dB and reaches 41dB at full lamp power. The "smart eco. "also reaches 41 dB.

Scratchy and sharp:

Without being bad, the TK800M does not reach the accuracy of a W5700; one would have guessed it in view of the price difference. The center of the image is well reproduced, but the edges appear softer. If accuracy is important to you, I recommend that you consider the W1720 or better the W5700 instead.

Liquid :

The absence of image interpolation has no effect on the moving image of the TK800M. The jerk is well controlled and no unpleasant deceleration disturbs the projection.

Input lag :


Players will be pleased to read that the TK800M offers an input lag of less than 50 ms.



This is good news for a DLP projector with 4K simulation, because even if it doesn't reach the best values in this range (16 ms), its 48.5 ms allows you to watch frag games in networks on very large images.

Video/Overscan artifact:

By default, the cropping (overscan) setting is disabled and the entire 4k test image is displayed on the screen. The search for the defect of the light frame shows that it has been reduced to about 10 pixels on each page, compared to 60 pixels before. This means that visual complaints have been reduced but not completely eliminated. Note that this frame phenomenon was already present on many projectors before the 0.47 chip was released.
Contrast and Brightness:

Like its predecessor, the TK800M is particularly bright with nearly 3000 measured lumens. It is capable of illuminating a 1080P SDR image of more than 5 meters in base with a luminance of 16 fL.



In the same planes it allows to project a 4K HDR image on 4 meters base, i.e. the signals HDR10 and HLG do not frighten him.
In contrast, the difference is also significant compared to the TK800, as the native values are almost doubled. However, the sequential contrast remains below 800:1 and the measured black levels require the use of a grey technical screen to add depth to the night scenes. This is the only solution as the TK800M does not have the dynamic aperture of the W2700/W5700.

To compare, here are the contrast and brightness measurements of the TK800:



Colorimetry and Gamma:

SDR :

The TK800M is not a "ready to use" projector in the field of colorimetric fidelity. The best factory mode at the gearbox output is "Cinema", but with a DeltaE deviation greater than 11 (values less than 3 are sought). The gamma is better adjusted with an average of 2.19.
Therefore, it is necessary to calibrate the TK800M to benefit from an image with natural colors. I place my recalibration values below:

HDR :

In the absence of automated HDR signal management, the user must manually adjust the contrast and brightness values using the special HDR menu to correctly illuminate the projected film image. Since movies are not encoded in the same way, the adjustment must be made each time.

Below I present a comparison arrangement between the BenQ TK800M and my reference projector BenQ W5700.



SUBJECTIVE JUDGEMENT

1080P SDR :

After taking care of the calibration of the TK800M image, I have to admit that I did a few visual slaps in the face on all of Lucy or Fury's day scenes, with enormous dynamics and scaling under the direction of the TK800M/Panasonic DP-UB820 couple and all with a good fluidity in the travels.



But once the black arrives, it's another pair of sleeves and every time I regret my little ViewSonic PX725HD or just a BenQ W1090, whose native contrast is about 2000:1 and which allows me to enjoy credible blacks without necessarily going through a technical screen.

4K HDR :




The switch to 4K HDR makes it possible to increase the density of night scenes. Again, the projector needs to be calibrated to brighten up a high dynamic range image, which is adjusted with the factory settings.

After completion of this process, the TK800M proves to be the champion of the HDR-10 image, especially thanks to its light output. It's designed for large images, so don't hesitate to provide it with screen backgrounds of more than 3 meters!

CONCLUSION

If you do not have calibration tools (probe and special software), I recommend using the W1720 instead of the TK800M. Otherwise, if you have the tools, the newcomer with its high brightness allows you to enjoy a high-quality 4K HDR show on large image bases. The TK800M is a great improvement over the TK800 thanks to values that improve in all areas of rating. Like its classmates, however, it suffers from a marked lack of native contrast. This remains weak and, in my opinion, requires the use of a gray technical screen with a gain of less than 1 to add strength and depth to the dark passages of your favorite movies or series.

In short, dear home cinema readers, here you are warned with increasing summer: the TK800M is rich in vitamin C, but insufficient in D. Dynamism versus reliability, it is up to you to see, choose, if necessary accept the compromise proposed by this model.

Cut! Cut! Cut! We make it again for athletes: As we approach the Women's Football World Cup in France, for which this projector could offer a great show, you will have to choose between a strong attack or a perfect defense. With this TK800M, you choose a credible intermediate formula: the midfielder, a hinge that is more pullable than victorious, preventing defeat. You are now informed supporters! 😀 Anyway, you will be BLUE!
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post #2 of 16 Old 05-28-2019, 04:15 PM
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Great review as always! Thank you
The results are pretty much exactly what I expected.
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post #3 of 16 Old 05-28-2019, 05:21 PM
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This is the kind of review I'd love to see more of. Thanks @kraine ; hope you post more PJ reviews here.

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post #4 of 16 Old 07-04-2019, 11:14 PM
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thanks Kraine, very helpful !! still wondering if i should take the tk800m or wait for the bright verison of the ht3550 ...
your review is very comprehensive
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post #5 of 16 Old 07-08-2019, 01:21 PM
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Quote:
Originally Posted by _seb View Post
thanks Kraine, very helpful !! still wondering if i should take the tk800m or wait for the bright verison of the ht3550 ...

your review is very comprehensive


Is gaming important to you? How big of a deal is it to you that the TK800M has no lens shift and only a minor amount of zoom range? How likely are you to use the projector in the dark or will it always be used with some lights on?

What to do if you find yourself stuck with no hope of rescue:
Consider yourself lucky that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your present circumstances seems to be more likely, consider yourself lucky that it won't be troubling you much longer...

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Quote:
Originally Posted by sage11x View Post
Is gaming important to you? How big of a deal is it to you that the TK800M has no lens shift and only a minor amount of zoom range? How likely are you to use the projector in the dark or will it always be used with some lights on?
hi @sage11x , thanks for your message. lens shift isn t an issue, but my throw distance is only 9'6''. so i d like the 1.3 zoom ration of the ht3550. i am not doing any gaming, it s just to watch movies. there will always be some sort of light in the room. that s why i was looking at a bright projector, with a zoom of at least 1.2.
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post #7 of 16 Old 07-08-2019, 07:38 PM
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Quote:
Originally Posted by _seb View Post
hi @sage11x , thanks for your message. lens shift isn t an issue, but my throw distance is only 9'6''. so i d like the 1.3 zoom ration of the ht3550. i am not doing any gaming, it s just to watch movies. there will always be some sort of light in the room. that s why i was looking at a bright projector, with a zoom of at least 1.2.


No games and a short throw... it may make sense to wait and at least see what benQ announces at the end of this month.
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At the end of this month? Is their projector line getting another update? Should
I wait to purchase?
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post #9 of 16 Old 07-09-2019, 06:53 AM
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Quote:
Originally Posted by Jrunr View Post
At the end of this month? Is their projector line getting another update? Should
I wait to purchase?
There may be more info at the end of the month, release date for the 'TK850' however has not been mentioned much. I think it would definitely be interesting to see what the TK850 brings to the table vs the 800 or 800M if you are able to wait.
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post #10 of 16 Old 07-09-2019, 07:33 AM
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At the end of this month? Is their projector line getting another update? Should
I wait to purchase?


The TK800M is an excellent projector and it’s available now. BenQ’s current 4K lineup— premium home theater (HT5550), affordable home theater (HT3550), and budget living room model (TK800M)— will continue on and potentially grow to add some new product. One of the potential new products is a ‘step up’ living room model. This “Tk850” (for lack of a better way to refer to this thing) is an unknown quantity— all we know right now is BenQ has said they have a product in the pipe that uses the HT3550’s chassis but offers higher lumen output similar to the TK800M. To be clear: BenQ has a lot of potential product in the pipeline that I would love to speak about but can’t. Lol! But this was ‘leaked’ already so I feel pretty safe to discuss it and it makes sense that BenQ would want a product like this in their lineup. Still, it’s important to remember that until we get an official announcement from BenQ anything can change.

My guess is if the “TK850” does arrive it should offer an improvement in image quality and features over the TK800M while still being viable for living room use. My speculation is it will lack the Ht3550’s DCI-P3 color filter and overall color accuracy but offer more output and retain the iris and most of the rest of the Ht3550’s feature set. But, again, this is speculation.
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What to do if you find yourself stuck with no hope of rescue:
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@sage11x ok. I was just worried that I’d buy my HT5550 this week that it would be outdated in a month... 😬
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If you are looking into the more HT model of projectors and not the budget living room projectors I personally wouldn't wait any longer, I believe there are good options out there in almost all price ranges, have to draw the line somewhere or you will be waiting forever!
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post #13 of 16 Old 07-09-2019, 08:56 AM
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BENQ TK800M Kraine's Review

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Originally Posted by Jrunr View Post
@sage11x ok. I was just worried that I’d buy my HT5550 this week that it would be outdated in a month...


Oh— heaven’s no. The HT5550 just launched and is a big new product for BenQ. In addition, now that BenQ can do user upgradeable firmware, I expect it will have a nice long product life cycle. The HT5550 is BenQ’s entry into the premium 4K DLP space, and the first projector they’ve offered at that specific price point in some time. Any new product you see from BenQ over the next year or so will not be replacing product but adding new price points and filling in needs/segments the current product doesn’t necessarily cover— like the TK850 offering more features in a bright room model.

And with that I’ve probably already said too much. I’ll hopefully have more to share at the end of July or early August.

What to do if you find yourself stuck with no hope of rescue:
Consider yourself lucky that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your present circumstances seems to be more likely, consider yourself lucky that it won't be troubling you much longer...

-- Excerpt from the Hitchhiker's Guide to the Galaxy.
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I know 4K content is going to look substantially better on this projector, but how does 1080p content look? Is it noticeably better in pixel shifting mode than with pixel shifting off?

The UHD50 specifically calls out upscaling but I cannot find anything on the TK800M in that regard.
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post #15 of 16 Old 07-12-2019, 12:40 PM
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BENQ TK800M Kraine's Review

Quote:
Originally Posted by aggie98 View Post
I know 4K content is going to look substantially better on this projector, but how does 1080p content look? Is it noticeably better in pixel shifting mode than with pixel shifting off?

The UHD50 specifically calls out upscaling but I cannot find anything on the TK800M in that regard.


IMO: yes. The upscaling employed by BenQ is solid and the extra resolution and pixel fill is a boon to quality HD content. But this works the other way as well: the TK800 can be more ‘revealing’ of poor quality or highly compressed content. Garbage in / garbage out.

What to do if you find yourself stuck with no hope of rescue:
Consider yourself lucky that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your present circumstances seems to be more likely, consider yourself lucky that it won't be troubling you much longer...

-- Excerpt from the Hitchhiker's Guide to the Galaxy.
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post #16 of 16 Old 07-12-2019, 12:46 PM
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Quote:
Originally Posted by aggie98 View Post
I know 4K content is going to look substantially better on this projector, but how does 1080p content look? Is it noticeably better in pixel shifting mode than with pixel shifting off?

The UHD50 specifically calls out upscaling but I cannot find anything on the TK800M in that regard.
I find that UHD50 1080p content (from BD or streamed) looks better when upscaled by my Sony X700 BD player versus upscaling by the projector itself.
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