Hello, I have been a Sonos fan for many years. I have a home set up with Sonos and I primarily use Pandora as my music service. I recently bought a 2nd home in the country of Colombia. I have set it up with Sonos equipment as well. I have mostly Sonos connects, Sonos connect amps that feed hardwired speakers. I have a couple play bars and a play1. Since Pandora is not available in Colombia I switched to Spotify as my primary music service. I am in a rural area of Colombia and the internet service I have is very spotty and many times non existent. I discovered because of DRM protected data rights I am not able to play Spotify in offline mode to Sonos. I am able to play in offline mode with a line in cable directly to one of my amps.
I have been reading about the Sonos Play OneSL. Would this be a solution for me to be able to play music offline on my apple device and then cast it via bluetooth onto the Sonos play One SL and thus onto the Sonos system? Without internet!.