Official Sony KDL-55W900A Owners Thread - Page 198 - AVS Forum | Home Theater Discussions And Reviews
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post #5911 of 5928 Old 12-12-2018, 07:51 AM
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Happy Holidays to everyone!!!

Well I pulled the trigger on the 75X900F, tossed in a Denon X4400H to go with it and now the work begins. Both are still boxed and sitting in guest room waiting on me to deside on a new entertainment stand which I hope to have this coming weekend, then the my Christmas begins.

As with any new toys the fun of removing the old and setting up the new includes move around other items and cleaning an area that hasn't seen a mop in 5 yrs....lol, not to mention running new speaker wire as I'm repositioning all my speakers to a 5.1.2 setup.

My 16 yr old is drooling at the fact that he will get the W900A in his room for PS4 fun, which means Fortnite and it replaces the 8yr old 46" Samsung that still look awesome (moving to the guest room).


Have a very Merry HDR Christmas and a 4K New Year.
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post #5912 of 5928 Old 03-11-2019, 04:28 AM
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I read from a while back that the W9 is a 10 bit panel. Is there anyway to send 10 bit video to this tv or is the hdmi limiting the video to 8 bit and the panel simply uses the extra 'bits' to create a nicer image quality? I ask because there's more 10 bit content out now - is there anyway to send 10 bit content to the W9?
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post #5913 of 5928 Old 03-11-2019, 04:53 AM
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I read from a while back that the W9 is a 10 bit panel. Is there anyway to send 10 bit video to this tv or is the hdmi limiting the video to 8 bit and the panel simply uses the extra 'bits' to create a nicer image quality? I ask because there's more 10 bit content out now - is there anyway to send 10 bit content to the W9?


If you have a PS4, Xbox or Blu-ray player just select the bit depth. On PS4 and Xbox there’s even 12 bit which will pop up on the display but won’t really output 12 bit.


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post #5914 of 5928 Old 03-11-2019, 10:45 AM
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Originally Posted by Flemi View Post
I read from a while back that the W9 is a 10 bit panel. Is there anyway to send 10 bit video to this tv or is the hdmi limiting the video to 8 bit and the panel simply uses the extra 'bits' to create a nicer image quality? I ask because there's more 10 bit content out now - is there anyway to send 10 bit content to the W9?
Deep in the setup menu there should be a setting for SBM (Super Bit-Mapping), Sony's re-quantization of 8-bit video. Sony's Blu-ray players also feature SBM.

I believe I was thinking what you are a while back, that true 10-bit/Wide Color Gamut content could be utilized on these panels. However, not possible. All the new WCG content utilizes the rec.2020 color space (which DCI-P3 is within). The display is only able to utilize xvYCC/x.v.Color WCG which is just an extension of rec.709. When playing back a UHD Blu-ray disc, all players simply convert this to 8-bit rec.709 (no x.v.Color). The only way to get 1080p WCG content are the "Mastered in 4k" Blu-ray discs."
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Last edited by Marc Alexander; 03-11-2019 at 10:49 AM.
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post #5915 of 5928 Old 03-25-2019, 06:59 AM
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Originally Posted by Flemi View Post
I read from a while back that the W9 is a 10 bit panel. Is there anyway to send 10 bit video to this tv
yes, and it really demonstrates the quality of the panel if you have it setup correctly. you can do this for both 1080p 10 bit original video sources, and with HTPC down-converted 4k video (for ex when 4K video is down-converted correctly with a HTPC using madvr , this maintains the 10 bit chroma and luma detail of the original 4k file)

the way i have it setup, i use a HTPC to send 1080p RGB 4.4.4 @ 10 bit (up to 60 fpsec,) to the w900a HDMI port set in game mode (which bypasses most of the tv internal processing and image enhancements)

using test images it was previously confirmed this w900a accepts 10 bit video and displays it correctly
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Last edited by Jorgens; 03-25-2019 at 07:34 AM.
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post #5916 of 5928 Old 03-25-2019, 06:29 PM
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The W900a is such a great display and sadly I feel it never saw its full potential.

Times have changed, I ordered a C9 OLED but the W900 is one of the best TVs I’ve ever owned.


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post #5917 of 5928 Old 03-25-2019, 09:51 PM
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yes, and it really demonstrates the quality of the panel if you have it setup correctly. you can do this for both 1080p 10 bit original video sources, and with HTPC down-converted 4k video (for ex when 4K video is down-converted correctly with a HTPC using madvr , this maintains the 10 bit chroma and luma detail of the original 4k file)

the way i have it setup, i use a HTPC to send 1080p RGB 4.4.4 @ 10 bit (up to 60 fpsec,) to the w900a HDMI port set in game mode (which bypasses most of the tv internal processing and image enhancements)

using test images it was previously confirmed this w900a accepts 10 bit video and displays it correctly
Quantization and color space are not the same. There are definitely advantages of downconverting to 1080p 4:4:4, but WCG is not one of them.
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post #5918 of 5928 Old 03-26-2019, 07:53 AM
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The W900a is such a great display and sadly I feel it never saw its full potential.
for me, the only limitation in having it perform at its best has been the quality of the source material sent to it. 50% of all free to air tv channels here are still only SD, and the ones using HD are at a low bit rate ( 4 mb/sec to 8 mb/sec in TS format)

in comparison an old style SD dvd is usually around 10 - 15 mb/sec, and blu-ray HD closer to 25 - 35 mb/sec (and 4k bluray should be 50-70 mb/sec). an additional issue is that (like with the old redbook music cd's), the fact a video is sold on a dvd or blu-ray disc doesnt mean the source file was mastered correctly (or was even sourced from a high quality video file), so DVD/Bluray video content quality (and SD or HD tv broadcasts) can vary a great deal.

we still dont have ANY 4k free to air tv channels here, and foxtel cable tv (the only cable service here) doesnt provide it either (and if they did, it would be mostly upscaled 2k anyway for the next few years, like they did when first providing 1080). so that leaves netflix and other online streaming services, and the 4k video they provide is also still a LOW mb/sec bitrate (currently) , which isnt even as good in video quality as most movies on a 2K bluray disc (which has a 3x higher bitrate for ex). The higher luma detail in the 4k streaming services however does provide a benefit visually, so its not all bad. the main reason people are more and more switching to these streaming services is to get access to different content, NOT because the video is 4k in its full 50 mb/sec glory that it can/should be

several of the 4k bluray player manufacturers have already discontinued making players for the format (oppo, samsung etc), and with new 4k bluray movie disc's sold at 50$ a pop, the amount of discs we are going to buy would always be a small niche product for most people. the future of video (tv/movies etc) is definitely 4k and even a progression to 8k, there is just very little of it available right now to the end consumer (where i live). i hear parts of europe are starting to use 4k for special event broadcasts (like football world cup, Olympics etc), so hopefully it will become more available soon. but meanwhile in real life, imho there is still no real reason to hurry and put down 3000 $ + to get a high quality 4k tv if you already have a very good 2K model (unless you want a bigger size screen etc). also many people with new 4k tv's here decide not to watch the SD channels anymore because upscaling from SD to 4k doesnt really work well enough.

for those currently looking to buy a good tv (mid-range or high end), there is in the last 2 years or so a great choice of good 4k models from several manufacturers (samsung QD models, Oleds from sony and LG etc), and there would be no reason to buy a 2k tv (unless you go for the lowest cost, but none of the better brands make premium 2K tv models anymore).

in my experience, tv display technology progress has significantly outpaced the provision of good quality video source material. so for me, i am still extremely happy with the careful choice i made to select this w900a for 1080 and SD video viewing, and am in no hurry to try and replace it with a 4k unit. for the 4k video sources i do watch, i can get 80% of the benefit by using the right 2K down-scaling process,
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post #5919 of 5928 Old 03-27-2019, 03:11 AM
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I believe I was thinking what you are a while back, that true 10-bit/Wide Color Gamut content could be utilized on these panels. However, not possible.
i think we can, but you need a light meter and a 3DLut file for your display to set it up using a HTPC

use a pc with a decent GFX card (with hdmi cable to you tv), and good free media player software. "all you need" is a 3Dlut file for your display that you can load into your HTPC video player software.

method: you need to switch the TV into the mode that support the widest color gamut (in our case xvcolor mode ), and then use the 3DLUT file to calibrate it for BT.2020 content. the tv doesnt know it is receiving rec.2020 video data (and doesnt care), it will simply plot the input to its DCI-P3 coverage ability of 94.7% ( if you compare that to the DCI-P3 range of many current 4k models, this is very similar in WCG to that used for those rec.2020 displays https://www.rtings.com/tv/tests/pict...ci-p3-rec-2020 ). you can send any colorspace you like over HDMI, as long as the device on the receiving end can be set to display it correctly.

in your HTPC video player (like MPC with Madvr) you then load the 3Dlut file, and when you play your 4K video file it will now correctly work with wide color rec2020, and while downconverting to 1080 10bit it will now use the full color gamut ability of our sony to display it while maintaining the rec.2020 WCG (as it would previously for xvcolor encoded information)

i havnt tried this yet myself (i dont have a hardware light/color meter to create the 3Dlut file) , but i did the background work on how to implement it, and this method comes directly from the video experten. obviously our w900a will still not accept 4k directly, but you can now down-convert the 4k 10 bit rec2020 video file to 1080 10bit and keep the rec2020 WCG

another good feature of using a HTPC is that for HDR encoded 4k video, you can fully use the 345 nit ability of this display (compared to the usually more limited 120 - 150 nit for most HD displays using rec.709) to maintain some of the benefit of the original HDR encoded 4k video file. in context, the main benefit of HDR is to increase the available luminance range instead of just increasing the brightness of the display (for ex for daytime viewing) . 500 nit is also the equivalent of looking directly into the sun at midday, so 345 nits is a decent improvement to get significantly increased greyscale detail if it is available from the source file (if you keep the 1080 down-converted video file in 10bit during the conversion workflow, the end result is a clear improvement in detail ) .

if you have a lightmeter, why dont you create a 3Dlut file for the w900a and post it here, so we can do some further experimentation






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post #5920 of 5928 Old 05-03-2019, 12:35 PM
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I still use my Sony for my PS4 Pro's for games that have static huds and are competitive online types.... and the LG C6 OLED for story based games... but anyway, I recently ran Amazon Prime's show Jack Ryan (through the PS4) on my Sony W900A..and was surprised how damn good it looked. I usually run the first few mins of that show 100s of times...when I want to video/audio test my OLED..or various devices. So I've watched those first few mins many times in 4K HDR...

So on the Sony W900A...even in 1080p (maybe the PS4 Pro's SuperSampling comes into play) but even in 1080p non HDR... it looked damn good. Questionably too good. 🤔

I guess it's been a while since I've watched non-OTA video on it.

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post #5921 of 5928 Old 06-29-2020, 11:29 AM
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I don't own this set but I'm still 1080p on all my devices. HDMI 2.1 is starting to show up on more devices and next gen consoles are on the horizon. Ultra HD physical content will become more popular. OLED is becoming more price friendly. But man, I honestly wanted this set. I got the last 1080 set Sony made but it's not that great. I don't want 4k until Sony has a 2.1 set OLED so maybe 2021/22 before I upgrade.

So does anyone know where or if anyone can get there hands on a w900a? I know it seems kinda silly, but I'm locked in hard at 1080p for at least another year and it's worth it to me to at least look.

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post #5922 of 5928 Old 06-29-2020, 12:34 PM
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I would recommend looking on either eBay or your local craigslist. This TV was really expensive when it came out but unfortunately, much like everything, it’s not worth much anymore. It’s still a great TV and I still have mine and have no plans on selling it anytime soon because it still works.

It might be worth just waiting for an OLED that meets your requirements.
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post #5923 of 5928 Old 06-29-2020, 05:43 PM
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I don't own this set but I'm still 1080p on all my devices. HDMI 2.1 is starting to show up on more devices and next gen consoles are on the horizon. Ultra HD physical content will become more popular. OLED is becoming more price friendly. But man, I honestly wanted this set. I got the last 1080 set Sony made but it's not that great. I don't want 4k until Sony has a 2.1 set OLED so maybe 2021/22 before I upgrade.

So does anyone know where or if anyone can get there hands on a w900a? I know it seems kinda silly, but I'm locked in hard at 1080p for at least another year and it's worth it to me to at least look.

Out of curiosity where do you live? I still have my w900a and it’s in perfect condition. Best 1080p TV ever made especially w/ quantum dots! However, I upgraded to a C9., amazing TV. You might just want to buy a C9, you’ll get a good price and have HDMI 2.1.


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post #5924 of 5928 Old 06-30-2020, 10:33 AM
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I have this set for sale

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Originally Posted by wanderjahr View Post
I don't own this set but I'm still 1080p on all my devices. HDMI 2.1 is starting to show up on more devices and next gen consoles are on the horizon. Ultra HD physical content will become more popular. OLED is becoming more price friendly. But man, I honestly wanted this set. I got the last 1080 set Sony made but it's not that great. I don't want 4k until Sony has a 2.1 set OLED so maybe 2021/22 before I upgrade.

So does anyone know where or if anyone can get there hands on a w900a? I know it seems kinda silly, but I'm locked in hard at 1080p for at least another year and it's worth it to me to at least look.
If you live in the region near Alexandria, Virginia, I have this 55" TV and it's for sale. I am original owner. It has less than 500 hours on-time since it was a secondary TV. Has been in a climate controlled, pet free, kid free, dust free environment. It looks and operates as new and comes will all accessories including 3D glasses and original packaging. Two base stands: original chrome and additional matte silver.

Great TV but I'm ready to get an LG OLED CX 65". Price negotiable.
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post #5925 of 5928 Old 06-30-2020, 08:12 PM
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I had the W900A before the x900E. And loved them both.
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post #5926 of 5928 Old 07-02-2020, 08:59 PM
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I had the W900A before the x900E. And loved them both.
Between the W900A and X900e, which one did you prefer overall?
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post #5927 of 5928 Old 07-02-2020, 09:03 PM
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I had the W900A before the x900E. And loved them both.
Between the W900A and X900e, which one did you prefer overall?
OH definitely the X900E, one of the best TV's around. Prolly easier to find than a W900A, but if you're waiting to jump to 4K, I would wait until a 4K with hdmi 2.1 TV is available that's the equivalent or next model.
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post #5928 of 5928 Old 07-03-2020, 05:46 PM
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OH definitely the X900E, one of the best TV's around. Prolly easier to find than a W900A, but if you're waiting to jump to 4K, I would wait until a 4K with hdmi 2.1 TV is available that's the equivalent or next model.
Thanks I’ll really appreciate you giving Your input. I have the X900e but sometimes I get caught up on good older TVs thinking that I’m missing out on something. ( at least they was really good for their time)
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