Same situation here with my first gen Emotiva XMC-1. I actually have 2 Orei UHD-PRO104 1x4 units (amazon) in my setup. One is used to split 1080p cable to use with other audio sources in the XMC, and the other is used to split 4K from a Roku to the TV and projector.

Both work great and it passes 4K perfectly as best I can tell. It also has 1080p downscaling a good EDID solution where you can give the #1 output priority. In my case that goes to the processor so streamers understand the audio capabilities are higher than the TV/projector. In that situation you may have to force 4K video in your source but I have found/confirmed that 4K/60 along with full surround works perfectly on the current Roku, Firestick, and Chromecast devices. Haven't tried any other sources.

They also make a 1x2 with the same specs as the 1x4: UHD-PRO102

 

Also, in your case and mine I think the downscaling feature is probably necessary, otherwise I think the splitter would see that your receiver is 1080p only (highest common capability between the 2 output devices) and therefore may not accept a 4K input? Not 100% sure on that, but I'd try that UHD-PRO102 before anything else. It costs less than dinner.

 

Thanks so much I’ll look into that mode for sure !!!

 

This splitter has some enthusiastic recommendations on the HDR/Wide Color Gamut thread. EZCOO 4k HDMI splitter. https://www.amazon.com/Splitter-l-b...=1662823738&s=electronics&sprefix=ezcoo+4k+hdmi+splitter,electronics,124&sr=1-3

4K HDMI Splitter 1x2 HDR D-o-l-b-y Vision Atmos Down Scaler - HDMI Scaler 4K 1080P Sync,4K 60Hz 4:4:4 HDMI Splitter 1 in 2 Out HDCP2.2, EDID 4K5.1/4K7.1/ Copy, for Game Xbox PS5 1080p120Hz Roku SP12H2

 

This splitter has some enthusiastic recommendations on the HDR/Wide Color Gamut thread. EZCOO 4k HDMI splitter. https://www.amazon.com/Splitter-l-b-y-Vision-Atmos-Scaler/dp/B07VP37KMB/ref=sr_1_3?crid=1YSUUWANV5999&keywords=ezcoo+4k+hdmi+splitter&qid=1662823738&s=electronics&sprefix=ezcoo+4k+hdmi+splitter,electronics,124&sr=1-3

4K HDMI Splitter 1x2 HDR D-o-l-b-y Vision Atmos Down Scaler - HDMI Scaler 4K 1080P Sync,4K 60Hz 4:4:4 HDMI Splitter 1 in 2 Out HDCP2.2, EDID 4K5.1/4K7.1/ Copy, for Game Xbox PS5 1080p120Hz Roku SP12H2

Thank you, been looking for a cheaper alternative to get Atmos and 1080p

 

Thanks !!! I’ll compare w the first one suggested above and will go from there

 

Ended up buying the EZCOO suggested above, and it works great! 4K to TV and lossless hi-res audio to my older non 4k receiver.

Big lipsync issue when selecting bitstream on the PS5, but once I set it to Linear PCM instead, and tweaked the AV/Sync setting on my Onkyo receiver I’m back in business.

(The AV/Sync setting on my Onkyo wasn’t “broad” enough to eradicate the lipsync issue when bitstreaming.)

Thanks !!!

 

Well, after a couple days and watching other movies to test it out again, the lip sync issue returned even when choosing LPCM on the PS5. Oh well, back to the Amazon it goes.