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Ok so I have a 7.1 receiver, 4k TV, left, right and center channel currently. My sub died and I may buy another wired one, but have considered buying a Sonos sub. I was also considering buying sonos for rear speakers. How would I connect that to my existing system? Second, Sonos speakers require a 110 power source correct?
The chromecast audio can use L&R audio phono jacks, or a mini optical toslink lead to send digital audio for the av receiver to covert into analogue.

I bought a mini toslink lead and use that on my AVR. You can then stream bbc iplayer radio 🆒
You cannot mix & match sonos products with you current AV stuff.

Saying that you could add a sonos connect to your current Av receiver to give it an internet connection, and make it a sonos zone, with tunein radio etc. But the £250 cost versus a £15 chrome cast audio is a no brainer for most.




Hi, how would you put a chromecast audio with an av receiver? Thanks
You cannot mix & match sonos products with you current AV stuff.

Saying that you could add a sonos connect to your current Av receiver to give it an internet connection, and make it a sonos zone, with tunein radio etc. But the £250 cost versus a £15 chrome cast audio is a no brainer for most.
You can't use Sonos SUB and/or PLAY surrounds with a conventional receiver.