J-Tech Digital HDMI Splitter 1 in 8 Out 4K 60Hz 1080P Multi-Resolution Output (MRO), HDMI Splitter for Multiple Monitors Duplicate/Mirror, Compatible with HDR & Dolby Vision [JTECH-18GSP18M]

Works well.

The media could not be loaded. This is a review and description of a configuration of several video components used together to achieve a couple goals. The goals were to eliminate a cable set top box by effectively cloning all the sources that were previously attached to one of the TVs to the other TV. The second goal was to eliminate the audio lag that previously existed with two cable boxes tuned to the same channel with one of them being a DVR which introduces the lag and a standard box attached to TVs in adjacent rooms.Part of the challenge that this solution had to address was that the main TV is a 4K UHD Samsung and the other TV is a much older 720p Samsung. This mixed mode requires a switch that can handle having two devices with different resolutions.The basic approach was to get the 5 sources into one cable and then have a switch split that one cable out to two televisions.I used the J-Tech Digital HDMI Switch 5X1 [JTECH-18GSW5] to combine the multiple mixed sources into one. I have 4 sources in play and they are a Samsung 4K Blu-Ray, an Arris HD DVR, a TIVO HD OTA, and a Chromecast. I have one port open for another random device that may be used from time to time such as my son's Apple TV when he comes over to visit. I used the HDMI cables that were in use before to connect each of these devices to the 5x1 switch.I connected the 5x1 switch to the 1x2 switch with a new 3 ft KabelDirekt 4K HDMI Cable.The 1x2 switch I have is the J-Tech Digital Scaler/Multi-Resolution Output (MRO) 18GBps 1x2 HDMI 2.0 Splitter [JTECH-18GSP12M]. I have it attached to each TV also with new KabelDirekt 4K HDMI Cables: one is a 3 ft and the other is a 50ft which will eventually be run inside the wall into and across the attic and then down into the wall behind the remote TV.Once I had thought through what was needed, getting all the pieces together was as easy as connecting all the cables as described above. The 5x1 does automatically switch between which ever source is on. If more than one device is one, there is a remote and a button on top of the unit that can be used to switch between the active sources.With this configuration, I can have both TVs on or have either one off and still have use of the sources on the one that is on. Since both TVs are Smart TVs, I can utilize that feature to watch something different on either TV if that is needed to be done.I am quite pleased with the result and would recommend all the components used.

Dolby Vision works with a 4K HDR TV in Mixed EDID Mode when the TV is in the HDMI 1 position. However (and it's big however), if you put a 1080p monitor or projector in the HDMI 2 position, Dolby Vision no longer works on the 4K TV in the HDMI 1 position. The instruction manual might be trying to explain this when it states "Mixed EDID: always follow the lowest resolution of the displays connected to 2 outputs in order to support all displays show the source" but that's not written in cognizable English, so who knows? In any case, it doesn't do what the manufacturer's description on Amazon indicates it does.

I bought this product as I have an older AVR which no longer supports some of the newer video features forcing me to connect other sources direct to the TV. My early generation LG OLED TV does not support eARC and limited the optical output to stereo for some HDMI inputs. I took a new Roku 4800R and used this Splitter and good quality (High Speed\Ethernet) HDMI cables to connect to my TV (using HDMI1 from the instructions) and AVR (HDMI2). I did have to change to "Copy" from the default "Fixed" (which surprised me), but when I did so I was able to again get "Dolby Vision" and "Dolby Atmos" on my TV and full 7.1 "Dolby Digital Plus" input to my AVR. I do see now, that the outside of the box clearly (as opposed to the more cryptic manual) DOES show to use the EDID Copy mode for 4k Dolby Vision support (which makes sense that EDID Fixed is straight 4k 60hz support as that is more generic). As I was successful, I didn't try "Mixed Mode" as it is implied that may not work with Dolby Vision. (There is a note: "Source Devices and ALL connected TVs must support Dolby Vision\HDR 10", so it looks like "Copy" was the way to connect the AVR as in my setup it can disregard extraneous video signals.) The Splitter did its job. The sound is much better and to the expected standard. The video was unaffected (great) on my TV with no noticeable change caused by the introduction of the splitter.

Im running this from my Xbox X to my Nakamichi Ultra 9.2 surround sound system. I recently updated the software to support Dolby Atmos and DTX. It works beautifully took a bit to play with but I game as well and there wasn’t any issues gaming and running the splitter connected to My 4K TV and home theater system. I already notice the lossless quality of music without it breaking or distorting because it can run more Mbps with the splitter connected to my soundbar and Tv at the same time.

This device did not work for me. I'm trying to downscale to a device that support HDCP 2.2, but is only a 1080p device. Because this downscale device will only downscale to 1080p if the device is HDCP 1.4, it wasn't downscaling the picture. It was keeping it at 4K because my device supports HDCP 2.2, even though it's only 1080p. Not going to rate the device poorly, because I'm sure it does what it claims it does in other situations. Just wanted to write a review more as information to other customers. There is no way to select the resolution on its own. It's all controlled through HDCP.

Good and sturdy. Nice weight to it too. Doesn’t feel cheap. I’m using this in a theater room splitting the video line to the projector and tv on the other side of the room. I left it on mixed though both images are 1080p. It even fell from the ceiling, hit the floor, and still works, so I feel it’s decently durable. I would recommend.