Connecting Beam to projector

And because the Beam needs HDMI-ARC (not just HDMI) or optical, you need to plan on pushing optical to the Beam. There are plenty of switches that can output HDMI and optical, and are likely cheaper than matrix switches pushing out multiple HDMI outputs.

I have exactly the same setting as you in mind. What did you do in the end?

For others who Google how to connect their Sonos Beam to a projector and don't want to spend a fortune on a home theater receiver, I would recommend purchasing an HDMI matrix. I purchased a 4x2 HDMI matrix that allegedly supported HDMI ARC on HDMI Out A, but I could not get that to work or the Sonos Beam to recognize that the TV was connected. Instead, I had to connect my projector to HDMI Out B with the Sonos Beam connected through the Digital Audio Out. If you don't want to spend another $4-500 on a home theater receiver - I'd recommend this approach. Sound quality is great from what I can tell - all TV coming through the Apple TV (YouTube TV) which supports Dolby Digital/Dolby Surround. Hope this helps someone else out because I went through 2-3 similar devices before finally finding one that worked!

Here's what I personally bought: https://www.amazon.com/gp/product/B07H54G5QZ/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Here's my setup:
Out: Epson Powerlite 8350
Out: Sonos Beam

Hub: 4x2 HDMI matrix

In: Apple TV
In: Nintendo Switch
In: PS4

So Rabidweezerfan’s product worked PERFECT however..... i have a few questions that i would like to address and maybe get a answer.... Let me first say i am new to Sonos. I bought them about 3 weeks ago but just hooked up yesterday (moved).... so first question is if i want to Connect 2 of the hdmi switch Metrix would a audio splitter work to connect both of them.... also what would be the recommendation of trying to hook up composit? I have been looking on the web and trying different things to get it to work with no avail has anyone had this issue? Or maybe a direct fix