Systems for a Geodesic Dome

Isn't that what Sonos is really?  

You would really have to consider the vintage Design Acoustics D-12 speaker. Perfect for that house design. ;-)

you could also use Apple TV3's ($40 for a refurb - the newer ones lack certain output options) to shoot music all over and control it too

then you can choose all your own components and get the best that Redbook CD has to offer with iTunes, or use other things and use HiRes recordings

the Sonos is fine for what it is (actually surprisingly good for what it is) - and if you are satisfied with that you're done

what is the wall construction going to be like?
- if you are an audiophile (or will be afflicted with that in the future) you will want to build the walls like the ones in a good recording studio - thick and well-damped

if you don't care, then a single layer of plastic walls or even canvas has been used by dome dwellers for decades - with enough Sandoz it's all good

I think Sono is a fine choice. The issue with anything these days is WiFi vs. wired. 

Have a plan for getting full coverage and avoiding network congestion. 

Best,

E

@jperry  MyGAWD! If I could find those Acoustic Design D12 speakers that would be awesome.  Pretty rare is just a term right?  I dreamed up the house I can dream of the speakers.  Thanks