The other day we were doing all sorts of stuff around the house in different rooms and thought it would be nice we could listen to the same source in different rooms. I then remembered that I have Airfoil on my Mac which makes it possible to stream any sound from that Mac to different Airplay receivers. (For streaming to just one external receiver you no longer need Airfoil.)
We already have an Airport Express in the living room near the stereo to receive music from my Mac Mini in the study. But with Airfoil speakers software you can turn other devices (Macs, PC's, iPads/iPhones, Android devices, Linux computers) into Airplay receivers. With Airfoil I could then send Spotify to another Mac with Soundsticks and an iPad connected to a speaker dock. If you have more devices around the house and a decent WiFi network, Airfoil could be really interesting and it's a lot cheaper than Sonos.
https://rogueamoeba.com/airfoil/
We already have an Airport Express in the living room near the stereo to receive music from my Mac Mini in the study. But with Airfoil speakers software you can turn other devices (Macs, PC's, iPads/iPhones, Android devices, Linux computers) into Airplay receivers. With Airfoil I could then send Spotify to another Mac with Soundsticks and an iPad connected to a speaker dock. If you have more devices around the house and a decent WiFi network, Airfoil could be really interesting and it's a lot cheaper than Sonos.
https://rogueamoeba.com/airfoil/