Sonos offers many hardware options, but they all have a few things in common. A Sonos ZoneBridge connects to your computer - it "indexes" music on your hard drive and connects to the Internet for music services (more on that later), then it beams all this to a ZonePlayer, which is hooked up to speakers somewhere else in your home. It creates a wireless network dedicated just to music and does not interfere with other wireless devices. You can add more ZonePlayers, and they all pick up the same wireless signal and allow you to listen to your collection in multiple locations throughout your home.
The ZonePlayer 120 has standard jacks for directly connecting speakers. You can also hook up an ethernet cable, if you want to stream music through a wire instead of using the wireless signal. Finally, the ZonePlayer 120 allows you to connect an analog device using standard RCA cables.
There is about a three-second wait time when you first click on the icon on your controller, as the Sonos systems starts up. But after that, you can run through your collection without delay. You will like how your music collection is suddenly organized alphabetically by artist, album, or track names. If you have a large collection, this indexing of your music is itself a great improvement over looking through hundreds of CDs for the one you want! Of course, the accuracy of your index relies on the album and artist data you provide when ripping your CDs into your iTunes library.
The Sonos system often feels overwhelming when you're first looking into it. There are a lot of patient people there who are willing to help you understand what the Sonos system is all about. After purchasing the system, you may have a question or two about options and possibilities, and the user forum is great for all of this.
