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Discussion Starter #1
why you should NOT buy any 4K HDMI 2.0 without confirmation it's HCDP2.2 is working;
https://www.hdfury.com/shop/splitters/integral-4k60-444-600mhz/
if you buy this limited to HCDP 1.4 most Crossover Korean panels continue to be in 2016;
you may need to spend an addition $200-$300 to downgrade HCDP from 2.2 to 1.4
between your 4K streaming device and these obsolete Crossover panels to watch content.
this will be a major issue in years to come, so ignore this fair warning at your own peril.


since there are threads discussing >100dpi 39-40" VA and 42" IPS monitors,
I thought I would start a thread focusing on these new <100dpi IPS monitors.

Crossover 434K: https://prod.danawa.com/info/?pcode=3301416
http://www.crosslcd.co.kr/main.html?tmp=product&pg=434K
http://www.crosslcd.co.kr/down/434K.pdf

Crossover 494K : https://prod.danawa.com/info/?pcode=3226747
http://www.crosslcd.co.kr/main.html?tmp=product&pg=494K
http://www.crosslcd.co.kr/down/494M-A.pdf

my 494K album of test proof and other details:
494K confirmed: ~12ms Input Lag over DP 1.2, 4:4:4 chroma 8bit+FRC color
any overclock attempt will skip frames. uniform and mild IPS backlight glow, no-PWM,
non reflective glass shield is a fingerprint magnet that is more glossy than matte.

monitor settings I found desirable, reminder - have no color calibration expertise:
backlight=20 brightness=40 contrast=60 sharpness=2 temperature=6500k PCM=native
changed since new freesync firmware was implemented.
backlight=30 brightness=50 contrast=70 sharpness=2, R and G and B = 110, PCM=vivid

July 24th: Crossover FreeSync firmware update released for 494K:
http://www.crosslcd.co.kr/board.html?table=down&mode=read&idx=89&page=1&category=
http://www.crosslcd.co.kr/board.html?table=cross&mode=read&idx=2952&page=1&category=

August 5th: 434K freesync firmware seen already installed in shipped panels.
Aug 19: 434K owners without freesync need to apply by email to get the firmware update; http://www.crosslcd.co.kr/board.html?table=notice&mode=read&idx=366&page=1&category=
for those questioning the authenticity of FreeSync on these Korean 4K's, read;
http://www.amd.com/en-us/press-releases/Pages/support-for-freesync-2014sep18.aspx

how you may be able to widen the range of freesync benefit:
http://www.guru3d.com/news-story/owners-of-freesync-monitors-can-enlarge-hz-range-with-simple-hack.html

July 30th: 494K IPS UHD HDCP2.2 chipset board replacement offer
http://www.crosslcd.co.kr/board.html?table=notice&mode=read&idx=361&page=1&category=
434K and 404K boards will support HDCP2.2 - only 494K has a minor chipset problem.
Aug 4th: Crossover will only send 494K owners the MStar board through a Korean reseller,
the MStar board design is not finilized yet, and may alter the feature set included in the 494K.

and yes, these are LG Panels:
Official Comment L4 Cross wizard-driven (0731joy) 183.102.xxx.28 | 7.23.2015 Declaration
Hello ^^ ohseobang. (Max1013) 's statement given panel model is not known deurilsu on company policy. However, we use genuine LG modules (finished) panels. Thank you.


feel free to ask questions and test requests about my 49" and other 434/494 owners here.

August 7th: see MenacingTuba's 434K review : http://bit.ly/1DHX2XP

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Discussion Starter #2
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2016 Warning to New Buyers:
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494K - still shipping with older Realtec (hdcp 1.4 limited) firmware (may require manual FreeSync update) and since July 2015 crossover offers no solution despite admitting they screwed up, and quietly pulled any hdcp 2.2 references from their marketing. (Roku4 and Nvidia Shield is shipping with hdcp 2.2 - so this is a current thing now - they won't even up-scale 2K streams to 4K without hdcp 2.2)
434K - shipping with MStar (FreeSync included) firmware - but some owners reporting the same intermittent blinking defect found on the 494K, which implies there are still sync issues on both models.
Best Advice: avoid all crossover 4K IPS models until they offer a solution. (even owners in Korea are reporting these issues to crossover with no fix yet) I will update this warning once crossover demonstrates they care about these issues. to date both reseller and maker tell you to contact the other with neither offering any solutions.
Feb'2016 a claim that crossover has a korea only based fix was posted here, confirmation is here:
http://www.crosslcd.co.kr/board.html?table=notice&mode=read&idx=401&page=1&category=
Mar'2016 repeated inquiries to crosslcd email, forum and my original reseller continue to go ignored.


additional subjective feedback regarding my Crossover 494K:

now that I have one, I'm pretty sure I would have been happier with the 404K so I would not buy this 49" IPS unless you specifically need this size and colors. I got the 49" for various reasons I won't bore you all with. I'm not sure if the cabinet misalignment was a manufacture defect or the unit got thrown around during it's 36 hours in transit. I had to use a soldering iron to melt a few mm of plastic to expose the buried nuts and screw in the panel legs. while I own various monitor arms and mounts, I did not use them as I decided such a large panel had to be viewed as low to the desk as possible to keep my face centered while viewing it. fortunately I am using a large adjustable height table, so I will probably lower it a few inches to bring the panel position down even further. since it's IPS I can view things from about a 45° angle without image fading. I do notice the last couple of pixel along the edge seem buried under the bezel. There is a setting in the panel menu to frame the image by 0-10 pixels, but it does not seem to make any difference. The 494K did include a korean language remote. fortunately my panel came pixel perfect (so far) I ran a 4K pixel fix video for a while to see if I could stick a pixel, and so far they remain pristine - only time will tell I guess.

my 2x CrossFire 7950 (underclocked to stay air cool) GPUs play all my 1200p games >60FPS and continue that tradition when the 1200p is streched full screen on my new 2160p. I didn't pay for 3DMark 4K with Fire Strike Ultra, so I can't give you a standard FPS test. However, I was able to run Middle Earth Shadow of Mordor Benchmark which prove my current build can only manage 11FPS at 4K60Hz vsync=on. Even 4K Video playback is a problem, but as you can see from my photo album it's the Win7 and CPU at fault, not the GPU (tried both GOM Player and POT Player). My plan is to upgrade to an AMD FX 8370 once they sell tax/ship free for $150usd, and to buy an AMD Arctic Islands 14nm once they get sorted out by 2016. I will keep my 6yo Asus VW266 aka VW266H going for a bit longer, and once I'm confident my new 494K is behaving 100% with all my applications, I will shelve that old 25.5" TN panel as an emergency spare. 4K really takes some getting used to as you used to park on a seperate monitor now has to be windowized. I'm upgrading to Windows 10 Pro soon, so it's window auto sizing and snap features should come in handy. I'm already running an updated test build on another boot SSD and should I notice any 4K performance variations under Win10Pro I will be sure to post about it.

4K60 Video Playback: I would recommend 64bit - http://daumpotplayer.com/
their 64bit version is free, and simple to reconfigure from german to english
POT Player is by far the most CPU efficient way to smoothly view 4K video files.
2K-4K sample files: http://distribution.bbb3d.renderfarming.net/video/mp4/

OS issue: Win7 is terrible with hidef video no matter what application you use.
if you have not already, upgrade to Win8.1/10 for the full 4K playback potential.
update: I finished upgrading a new win8.1pro to win10pro, however it may take
me a Month of migrating applications before I can post Win10 specific testing.

I got Guild Wars 2 to display up to 2160p without any sort of scaling - see my imgur.

2160p/1440p panels over 27" can not be over clocked without skipping frames:
http://120hzmonitors.com/monitor-list-120hz-144hz-165hz-200hz-240hz/
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1200p (1920x1200)? That's typically a 16:10 resolution. Wouldn't you want to use 1080p (1920x1080), so it can scale to full screen while maintaining the correct aspect ratio of the TV (16:9)?

1080p also would allow perfect pixel quadrupling (2x2).

1920x2=3840
1080x2=2160

1200x2=2400???
 

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Quote:
Originally Posted by spypet View Post

I can not disclose how/who I bought it and what I paid.
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I love this part of your original post. I'm just curious how the monitor looks like on your desk. I would think a 49" would be too big but then again, justifying a 49" monitor to my wife might be a harder task to do. Do you have any pic's of this monitor on your desk in respects to size?
 

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Discussion Starter #7
do the work formula - stop trolling half a dozen threads till you get it spoon fed to you. all the information has been discussed at nausea on other easily searchable threads;
https://prod.danawa.com/info/?pcode=3226721
404K cm (40-type) / Wide (4:09 p.m.) / VA / Wide Viewing Angle / 3840 x 2160 (4K UHD) / 5 (GTG) ㎳ / 350 cd / 5000:1 / 5,000,000:1 / LED manner / 60Hz / speaker / PIP / PBP / crosshair display / x1 HDMI / D-SUB / DVI / DP port / 42 watts / .5 watts / 200 x 200 mm / 2.0 HDMI / DP v1.2 / ECO light / 555,000 yuan ($480usd), panel source unspecified
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@spypet - Do you play any FPS games at all? If yes do you notice any / if much lag? Motion blur? Screen tearing? Etc. How are the colours on the AH-IPS panel? And how is the scaling when web browsing and whilst gaming as well please???
 

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Discussion Starter #9
I will update my imgur library today with 1600asa<3ms photos of all blurbuster tests at 1080p 1440p and 2160p, then you can decide for yourself if performance is up to your need. most of the issues everyone nitpicks about panels I really don't notice and didn't bother using any color calibration software or device, so the test photos i post will have to speak for themselves. be advised my gpu and camera may be limited in it's ability to properly represent these test. I will post too many photos to bother labeling each one, as all I will do after process is crop them, so you must enlarge and read what test and resolution on each photo is being represented. If you have any test you want redone or have another test in mind, please provide a specific test link to it and resolution to test. personally - I'm most sensitive to input lag and do not perceive any here (this is the main reason why I did not buy the WM42/55). I notice occasional video replay tearing but am not bothered by it, and have never seen any tearing while actively gaming (cut-scenes which are video replays may occasionally tear). I think motion blur is a silly reason not to buy because blur is an intentional part of a lot of content, however unwelcome Windows GUI blur such as mouse movement and text scrolling is not an issue with my 494K at any resolution. maybe next year when I upgrade to a Arctic Islands 14nm that can manage 4K60FPS games, then I will become more sensitive to these twitchy issues. In the meantime, my xfire GPU's can >60FPS every game I play at 1080p and I'm perfectly content with that.
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Quote:
Originally Posted by formula m View Post

So what is the diff between a 434 and a 404 then...?
434 is relatively new I wonder if anybody has it. It is LG IPS panel, so it is apparently a competitor to WM. I wonder what are exact panel numbers, and in what LG TV products are 434 and WM panels used, so that I can easily learn corresponding contrast&viewing angle measurements from rtings...
 

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Discussion Starter #11
Quote:
Originally Posted by Tegiri Nenashi View Post

it is LG IPS panel
could you link to any evidence the 434K is also LG because I could not find anything to verify this, and would like the top post to be accurate. simply assuming that all 42-43" IPS panels much be from LG is not what I personally consider evidence.

BTW all the tests that CYBER-SNIPA requested are now included in my imgur link.
 

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Quote:
Originally Posted by spypet View Post

could you link to any evidence the 434K is also LG because I could not find anything to verify this, and would like the top post to be accurate. simply assuming that all 42-43" IPS panels much be from LG is not what I personally consider evidence.

BTW all the tests that CYBER-SNIPA requested are now included in my imgur link.
Your the first pic aka the specs list states that both panels are AH-IPS panels and all sellers listings I have seen state that they are made by LG.

And thanks for all the pics of your testing, would you mind just adding a separator so we know which is the 434 and the 494 please. As it's a bit unclear, but otherwise good job man, +Rep to ya!!!
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Quote:
Originally Posted by CYBER-SNIPA View Post

pics of your testing, would you mind just adding a separator so we know which is the 434 and the 494 please.
all tests are from the 494K, see imgur title - I don't know how much clearer I can make it...
 

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Quote:
Originally Posted by spypet View Post

all tests are from the 494K, see imgur title - I don't know how much clearer I can make it...
LOL OK I thought that the tests were from both monitors, but I just realised that you only have the 494K. I guess that there's probably not much between the two anyways - thanks man.
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Thanks for all the photos. 49" does indeed seem like the perfect size for 4k. Once prices go down I'll join in too!
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Originally Posted by kache View Post

49" does indeed seem like the perfect size for 4k. Once prices go down I'll join in too!
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49" is the same DPI as a 24"1080p and 32"1440p - which may be why I find it a comfortable resolution at 4K.

regarding pricing, allow me to give you a little insight;
when Crossover announced the 49" it was supposed to be at a promotional price of €652 for the first 100 panels sold after that the price was said to be raised to €723, so I got what they call the early adopter discount. obviously I have no idea what base price re-sellers will set their 494K in the future, but I can tell you that to ebay list, paypal pay and currency convert, air frieght, export fees and insurance, will add €200-€300 more to that base price, and no independent proxy will send a TV for less. TV's from S.Korea to Italy may be subject to an additional 14% Import Duty plus 22% VAT of €341. If I were you, I'd wait till some 4K TV showed up for sale locally with a low input lag HDMI 2.0 port.

http://www.dutycalculator.com/new-import-duty-and-tax-calculation/
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Great info here as I was looking for the Crossover 434K.
During my large monitor research frenzy I initially picked the Seiki SM40UNP ... got a $100 discount coupon on Amazon until the end of the month.
But when I was reading about their support ... I started again searching and found the Crossover 404K with VA panel technology. After reading more and finding the 494K with AH-IPS I thought that might be the right choice for me ... but the 49" size is kind of scary I would say.
Especially I am not into any gaming ... just photo/video editing, web surfing, software development etc.
Would probably run 4 virtual machines each with 1920x1080 or so as 4 windows.
Then I found the smaller 434K also with AH-IPS.
Next thing I found this monitor at eBay with the current bid at $365 and just a day to go.
The Korean 'Dream-seller' had the same monitor for $889 and since I wanted to buy it anyway I was bidding $880. So I won the bidding ... but here it comes ... original eBay: 'You are the high bidder on this item, but the reserve was not met.'
This seems to me that the seller did not really have any intention to sell the monitor at a price a cent lower than he was selling the monitor anyhow. Is this normal business practice at eBay?

So I said, I am not buying from this seller and started looking into the Korean market with the links you provided. Gmarket seems so far the only other seller, but they do not ship into my country.
Maybe I should just go back to my original Seiki plan since they at least have support, while Crossover might not offer anything 'Surpport' (English text on button on their website).

Anyhow, then it comes to the 434K and 494K I found some information (mostly in Korean) at the crossover website (not the English one).

434K
http://www.crosslcd.co.kr/main.html?tmp=product&pg=434K
http://www.crosslcd.co.kr/img/434K_IPS_UHD_HDMI20_850.jpg (10MB image with all the information)

494K:
http://www.crosslcd.co.kr/main.html?tmp=product&pg=494K
http://www.crosslcd.co.kr/img/494K%20IPS%20UHD_800.jpg (9MB image with all the information)

Comparing the information of both monitors it looks to me that they are using the same technology, panel (AH-IPS) etc.
If I am not mistaken only LG offers AH-IPS.

Regarding the DPI ... since I am shortsighted and do not use glasses when using the monitor I wonder how I will cope with this large monitor without getting a stiff neck. I am upgrading from a 24" (1920x1200) + 18" (1280x1024) dual monitor setup.
 

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Quote:
Originally Posted by ricky42 View Post

You are the high bidder on this item, but the reserve was not met
I actually warned DS by email that he was only pissing english buyers off by setting his reserve at his regular sale price, but he didn't respond - it's probably an Asian thing as DS is otherwise a good source. I have concluded the 434K is probably a lower input lag alternative to the WM42" so I hope you end up buying a 434K and posting your findings here. I assume you will enjoy the same I/O and feature benefits, but nobody can be sure of it's IPS panel till it's tested first hand. honestly, had I not gotten a special secret deal on the 494K I probably would be buying the 434K now too... 49" is a bit much for most desktops, but now that I have it adjusted to suit my tastes and needs, I'm glad I have it instead. for me a 49" also fits well in my living room wall unit to double as a entertainment system display which is currently hosting a 20yo 32" tube TV set. as for neck issued while using a 49", despite owning a hutch and various VESA arms, I simply put the feet on and planted my panel low on my desk so my head remains centered vertically while reading it. also, you have to consider a 49" like a big canvas you can paint multiple windows where they are easiest to read - there's no need to fill screen anything. I even watch videos in a 1080p x1.5 window instead of full screen, so I can still have side gutters to monitor other things.
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