RM500+ on a online store, price too steep. Let's wait for more manufacturers to jump in and drop the price.

There is a brief mention here :-

https://androidpctv.com/review-beelink-gt-king/

I am not knowledgeable enough to know if it really answer those questions you raised.

Automatic refresh rate change: Not available, the settings exist but it does not work.
Media sharing: Chromecast NO / Miracast NO / DLNA with BlubblePnP / Airplay NO.
LibreELEC: This model is NOT compatible with LibreELEC.

Audio test results
Formats DD / DTS 5.1 DD+ / DTS MA DD True / DTS HR DD Atmos / DTS X
HDMI OK / OK OK / Core Core PCM / Core*

In case anyone is interested

Beelink GT1-A

I think stock finished up already.. LOL

If my understanding is correct, this box is the older hardware based on gt1 but added Widevine L1 certification at factory.

The most funny part is both the GT1-A and the GT king are Widevine L1 and rooted, but one can play netflix 4k and one cannot. The difference is one is Android TV and another is not ( Netflix has different binaries on ATV and phone ) ?

The audio passthrough whatever you could find for GT1 should be applicable for GT1-A.

I am browsing through all Beelink products, seems they have no box which has an external antenna. Bummer ! I don't trust boxes without external antenna. If ones were to check beelink website, they got loads of complaints poor wifi performance. 

Anyone using this?

I think this might be the best one current on the market due to the best value.

Can we install apk like HK,US drama movies on this box?

I do read up on GT1-A, and based on the review, GT1-A do run Andriod TV which same as GTmini-A.
The reason picking Andriodtv is because for the HD/4k netflix.

Therefore GT1-A was running on the same OS then only i considering the more newer and power GTmini-A.
But the only dragging point for me is that i scare it wont allow to install those drama watching apps like those in market. @@

I feedback all this to them and they promised improvements.. Then regarding Netflix compatibility, the upcoming GT1-Mini 2...Same like the GT-King. While they both have Widevine L1 level permissions and HDCP 2.2 keys, still can't support Netflix 4K out of the box. I suspect the usual..non-ATV OS, etc.. Also the GT1 mini-A will be upgraded with the Amlogic S905X3 SoC as well. The "GT1 Mini-A2" should ship with ATV OS (They did also mention that their ATV OS system does support Netflix up to 4K,) and can support Netflix 4K. No word on dates yet.

Bruh... The rapid models changes bests me too.. Heck, even the just recently released GT-KING has had a hardware refresh  .. So now, there are 2 versions of this same "GT-KING". One with an S/N code starting with B922 and the other "922X".. Unfortunately or fortunately, however one may read it. It appears, it isn't entirely Beelink's fault. As it's AMLOGIC that began shipping out processors of new revision B. This is faster as the cores frequency improves from 1.8 to 2.2. Problem now is the device tree is different and as such, some who flashed custom ROMs on the revised hardware are facing bootloops, as the ROMs were made for the initial hardware.. Issh..

I can't speak for all Beelink devices as yet. But I do know that core DTS and DD can be gotten from those both formats. And yeah, Astrogo does work on the GT-King.

I check again the play store, it is so confusing. Seems they reverted back to the old 8.2.6.

Last I checked mine.. It was okay... Smooth playback and no lag.. Rapid ramp to HD.. But this was last week Thursday or so. Unless they've made changes by now.. Will check again later tonight..

I think this is device dependent.
These applications depend native libraries for video play back, if these platforms do not have a suitable codec it might suffer.

The current problem I faced is still 'difficulty to login' at the login page. I don't have problem once managed to login. I saw a similar complaint on the play store. But I have never have problem on my phone, it is really easy to login. I am checking if they purposely cripple the login page by detecting device screen dimensions ....

If u buy say $150 box, item 1-30 can be install free

And we have in stores a new advanced version of the Smart Box Beelink GT-King from which you can read our complete REVIEW. This new box comes under the name of Beelink GT-King Pro and stands out for its new blue metal box with a front LED display, although the main novelty is inside since now we have the powerful SoC Octa Core Amlogic S922X-H that includes Dolby DTS certifications. We also see that at the connector level there is some change with the incorporation of an RS-2323 port, the elimination of the SPDIF audio output although the rest of the specifications remain with respect to the original.
https://androidpctv.com/beelink-gt-king-pro-review/

As I understand it, DTS and Dolby licenses are only needed if the system processes the audio stream, for instance, if downmixing a DTS-HD or Dolby-HD audio stream to stereo. But if you intend to use HDMI pass-through, the licenses are not needed since audio processing will be handled by your A/V receiver for which you’ve already paid such licenses. If you miss those licenses and try to watch a video with Dolby TrueHD or DTS Master or other higher-end codecs, many apps will not output audio at all. Kodi can manage without licenses because they implement the code to do so, and apparently does not check for the license(s). Note that Dolby AC3  patent expired in 2017 so you should not need any license to play videos with that 5.1 channel audio codec.
https://www.cnx-software.com/2019/09/24/bee...y-dts-licenses/