Revamp Your Home Audio with our Upgrade Program | Sonos
Sonos Will Soon End Software Support for Its Older Speakers | WIRED
How Does Sonos Upgrade Work? (Discounts Available)
Hey Sonos, McIntosh's awesome trade-in scheme is everything Upgrade Program isn't | TechRadar
Halsten Entertainment on Twitter: "Need a new @Sonos speaker? Now is your chance to buy and save with the Sonos Trade-Up program! Save 30% on new Sonos when you recycle your Connect:Amp,