I try some splitter before the AV Access .. there are a big defernce .. thank you so much

I use this product to split the signal of an Xbox between a 4K TV and a full HD projector. Works very well and I get the signal as expected. Super simple to install, very quick delivery.

I wanted an HDMI splitter to feed both a 4K HDR monitor and a 4K HDR TV from my PS4 Pro and this works brilliantly. I had tried products from other manufacturers but returned them in disappointment when the quality wasn't of a good standard. So it's great that AV Access makes such a high-quality HDMI splitter that does exactly what I need. It's compact and once it was in place I didn't need to worry about it. Now I don't have to swap cables to switch between screens. It arrived within a few days of ordering, too - highly recommended.

Very nicely made item, works great and doesn't take up much room. I was reading through the reviews here and people seem to have some issues with this device, so when I got mine before I installed it, I threw it on my workbench to test a few things out. People are writing about how the device doesn't push HDR to the displays connected that are capable of it; the important thing to remember here is that the device only pushes out the picture that your lowest-quality connected television can reproduce. So if you connect one that has stereo sound only, all will have only stereo sound. If you connect one that has HDR and one that hasn't, all will not have HDR. I suspect this is a limitation by design to streamline the internal hardware, it's rather impressive on it's face that they can get this little box to convert 4K down to 1080p and back and still be responsive enough to play games with, so I'm assuming they have the device determine the lowest quality needed to show, and then output that to both for simplicity. Honestly you're going to be hard pressed to find something like this that doesn't do that; in order to work as some seem to want it to, the device would have to decode, then re-encode two different HDMI streams, while juggling the rest of the overhead of operating HDMI. All in all, this is fantastic value for money, even if the way it operates isn't immediately clear.