I have long auseinandergestzt me with the subject and with the Sonos platform found a suitable solution. I have my Musikbiliothek on a NAS share which was immediately recognized and easily integrated. The software is simple and intuitive. A sufficient number of radio stations are available and you can also integrate music providers. The quality of the speaker is surprisingly good and the volume is sufficient. Have looking for a system that allows me background music in the living room (kitchen Living). Will this system safely expand by further components.
