So you're going to use both? Side by side? Because Sonos will not interface with the W4S unit, or any of the others, it is a closed stand alone system, just as the Meridian Sooloos is a stand alone system.
The Sonos is also, as I'm sure you are aware a multi room, multi source system the W4S and the Xiva aren't, in fact it appears the Xiva is a NAS with server/ rendering software built in and needs a Dac) and the W4S which looks really nice (even though not available yet ) also needs an out board Dac, since it doesn't have one built in. The other thing with the W4S is that it's storage is built in 1tb, uses a single drive and can't be setup as as a RAID for back up.. it does look as though it has USB ports for expansion but their sketchy info doesn't elaborate much on it's features. (BTW I have a W4S Dac1 in a system and it sounds great)
You didn't mention cost but the W4S Server with one of their Dac's , i.e. Dac 1 will run about $3000.00
The only peripheral products (besides a router) Sonos will interface with are a NAS (for storage), outboard Dac (to improve sound quality) and of course a Mac/PC. So when you asked your original question it sure seemed to me as if you are confused as to how Sonos works, because it won't interface with anything else and certainly not with the products you mention.
The Sonos is also, as I'm sure you are aware a multi room, multi source system the W4S and the Xiva aren't, in fact it appears the Xiva is a NAS with server/ rendering software built in and needs a Dac) and the W4S which looks really nice (even though not available yet ) also needs an out board Dac, since it doesn't have one built in. The other thing with the W4S is that it's storage is built in 1tb, uses a single drive and can't be setup as as a RAID for back up.. it does look as though it has USB ports for expansion but their sketchy info doesn't elaborate much on it's features. (BTW I have a W4S Dac1 in a system and it sounds great)
You didn't mention cost but the W4S Server with one of their Dac's , i.e. Dac 1 will run about $3000.00
The only peripheral products (besides a router) Sonos will interface with are a NAS (for storage), outboard Dac (to improve sound quality) and of course a Mac/PC. So when you asked your original question it sure seemed to me as if you are confused as to how Sonos works, because it won't interface with anything else and certainly not with the products you mention.