I think I have found the solution that I am looking for, but wanted to run this by others.
I know from reading that there seems to be various ways to use the Echo Link (no amp version)
My proposed use is rather simple. I want to take the optical output of the Echo Link and run it unit the optical in of my Sonos Playbar. This will allow me to drive music through the rest of the house that is composed of Echo product, and my living room Sonos system at the same time.
Any reason why this should not work?
Thank you for your time.