Direct to the point. Iam wondering how it is used (for what) the Sonos Connect analog audio line out input?...I have my home theater connected to the Line In analog audio line in input so to be part of my sonos audio system, but I really don't know how can take advantage of the line out input?....What is for?. Also I see additional audio inputs like optical and coaxial and I was wondering if you can connect other devices to those inputs at the same time and use them all, as part of the Sonos system. At the end of the day I'm looking for advise on how to take advantage of my Sonos connect that is sitting in my living room with almost no use. Thanks for your help guys.