OMG! I just had to demo the Appletvx and I'm ending up buying it.
Some background. My dedicated home theater is still under renovation/construction - when its done with a 14' screen, Sony GTZ-380 with Isco x 1.25 anamorphic lens, 11.7.12, the Appletvx will have its permanent home - but my basement system with it now will have to keep one, too! Its that good!
My basement system is five on wall Totem Audio Tribe III speakers, 4 Dynaudio Atmos in ceiling speakers, some REL subwoofers, Marantz AV7705 SSP, NAD M28 7 channel amp and NAD C298 stereo amp, Kaleidescape Strato C and Alto players, 2021 Apple TV 4k. The latter is still in the system to compare to the Appletvx. I also have an outdoor OTA antenna with a Silicondust HDHomerun OTA 4k/HD tuner using Channels DVR in my Appletv4k/Appletvx for local OTA stuff. Oh - a 2019 LG C2 OLED 65".
I've compared OTA shows like The Flash, NCIS, Superman and Lois. I've compared Paramound Plus shows like 1883 and Star Trek: Picard. I've compared on Youtube the Appletvx Test Clips. Also, I watched a movie on Amazon Prime the other nite, "Ticket To Paradise", set in Hawaii!
The Appletvx is clearly some picture quality improvement - I really have only had it a week now and haven't got to the audio stage yet, though it certainly sounds as good if not better but I've been focusing on video. People in particular look more focused, as if the image is say 4k compared to HD. Black level and background just may seem more black though I don't know how that happens with an OLED. On the Appletvx Test Clips you can see better clarity and brightness, black level, detail compared to the Appletv4k. Star Trekicard and The Flash simply get me more involved with the better picture. Hawaii in the movie looks somewhat - more Hawaii!
Is the improvement worth the money???? Depends on how much you're willing to spend I guess, if anything. But there is an improvement.
Oh - but lets go to the icing on the cake that makes the Appletvx a total no brainer for me!
I have a DJM Electronics Gigafoil v4 which is a small industrial box with a wall wart power supply which intakes and outputs ethernet cables but inside the box it converts ethernet to optical and back to ethernet. GigaFOILv4-INLINE - EMI/RFI Filter for 10/100 and Gigabit Ethernet (djmelectronics.com)
I've been using it with my Kaleidescape downstairs recently, and clear improvement in picture and sound, as Kaleidescape gets its signal not via HDMI but via hard wired ethernet. Audio is clearly even better. I 'd say the better the picture to begin with, the better the video improvement.
Watching all the same stuff as above was clearly better - now 4k Ultra HD and HDR program material actually looks so much more like that as opposed to trying to catch up to a blu ray disc. Star Trek Picard is - amazing! Its like a picture with better brightness, black level, color, detail and resolution.
I also used my standard Appletv4k with the Gigafoil. Definitely a video improvement, but can't say it looked quite as good as just using the plain ol Appletvx. So using the optical Gigafoil v4 with the Appletvx really gets the best video quality at its best.
I wanted to thank Steve again. His words are important. For those who don't know Steve, he is a true hard core AV guy extrodinare. His systems have been in magazines going back decades. He has seen pretty much every piece of gear ever known. He was one of the first people on AVS Forum back when it Alan ran it. Steve still has a high ranking presence at AVS. His experence with AV gear is literally ledgenday.
He called me up after hearing from another client of mine who is also a ledgenday level of high end dealer going back decades. Word of mouth is how most of my units have sold. Steve wanted one IMMD, hahaha..
Steve is no push over for gear. He is much more like a serious high end audio press guy. Seen it all with zillions of hours of experence. He outlined what his approach will be to evaulate it. Really solid plan. No quick AB, no he has a well defined methodolgy. It also REALLY has to live up to its claims and its price point. He outlined all this. Also his review is not nearly done. He is going to spend months with it and report. Like a reviewer does.
So when he says the stuff above, its very conservative and methodical with really good AB and careful objective reasoning.
I was really impressed when he ordered a 2nd one
He also immd picked up on what a number of us had already noticed, ethernet matters.
Thanks again Steve, I look forward to a more in depth study a month down the road.