The answer to your question, as Lazarus stated, is yes you can. But I find there is nothing quite like foisting my opinion on someone else as I am liable to do so ....
The Sonos is a brilliant piece of kit, the only issue is that it used to use a proprietary peer-to-peer mesh network which meant the wireless is incompatible with other media streamers. This is only an issue if you store your music on it instead of a NAS. I don't think it's changed, but it may have done.
Airplay and squeeze box are popular alternatives but I don't think they give you the same integrated feel that the Sonos does, the only issue being that Sonos kit is not cheap (if you use your iphone to control it consider airplay).
I'm hoping to put in airport expresses or apple TV's in the each room of the new house if/when it's done. This would provide airplay streaming as well as extending the wireless network, yes You'd need an amp/speakers but if that was your boggle you could always buy one of the many airplay amplified speaker systems ([size=78%]
https://www.apple.com/uk/airplay/[/size]).
Airplay, as an aside, will do video too if you get the appleTV which is much more cost effective than the Sonos.
I like them both, they both have advantages and disadvantages but the video clinches it for me.
Just my 2p.