What do you think is the best choice (only music) for a small room (5m * 4m * 2,5m or 16 ft * 13 ft * 8 ft)?

  • A pair of Sonos Era 100 + Sonos sub mini
  • A pair of Kef LSXII Wireless + Kef Kube 10

My doubts about Sonos are:

  • Does a guest or someone else living in the house have to install the application to share music as well?
  • On the other hand, is it possible to have different Sonos accounts and connect the same speakers (so as not to mix musical tastes)?