Did some researching this weekend. Got a new 4K 60Hz HDR TV from Santa for the man cave. The BDA-3 has the one HDCP 2.2 port. As I want to use 2 4K sources - Roku + Oppo, and hope to hook up my PC @4K as well. I looked into options. I have a 2 speaker system, and a subwoofer that is fed speaker level input in my stereo system.
Other than paying a lot for a HDCP 2.2 (all ports) AV processor, there was not a lot to go on. And from the reading I did, it’s likely to change in 1-2 years anyway. I don’t need any 5.1 or above.
I opted for an HDMI switcher that allows 4 inputs, and 4 outputs, all ports are HDCP compliant. I will put in all 4 sources (add the cable box for now), and send one output to the TV, and one to the BDA-3.
Not as clean and neat as I was hoping. The advancement of Video standards will necessitate hardware changes frequently. I chose to move out of the box with the HDMI switching, as I see no way an audio company could keep up.