Definitive Technology W7: Listen to your favorite music throughout your home. Ultra-compact to fit just about anywhere, this speaker supports popular streaming services such as Pandora.
I just added a 3rd W7 Def Tech cube to a whole house setup that includes a W9 and a Studio Soundbar. As wireless systems go, the sound quality is very good and the subwoofer is typical Def Tech solid -- far better IMHO than the Sonos system. Where the system stumbles is the wireless function isn't fully reliable. The system frequently "forgets" speakers that are part of the network or Play Fi dumps its connection in the middle of play. Both are generally easy enough to fix by either closing the app and restarting it or going through the speaker setup process to reconnect the forgotten speaker, but neither of those should be part of the standard operating procedure. Each software and app update makes the performance incrementally better, but it's still not to a point where I would recommend it to a friend. Keep working at it Def Tech and Play Fi...you're getting closer but you're not there yet.