I can confirm the stereophile comments by experience, that using the digital output of the Connect into a high end DAC brings it on par as a source with any digital transport of whatever price.
Audiophiles look at the price of the Connect, and dismiss this just based on how low the price is.
I say high end DAC because a mid price DAC won't show any better performance than the Connect feeding analog signals directly to an amp, with its already decent quality internal DAC. Unless one goes into critical listening mode on a system with resolving speakers in an otherwise silent room, the need for even an external DAC will not be felt.
This is the great thing about Sonos. It can be a high quality wireless digital source to a high end audio system, or, it can also do cheap and cheerful, with a single Play 1. And even then, at par or better than most bluetooth/wireless speakers that are at its price point of approx Rs 15k.
And of course, it can do both in the same home in different rooms, all with a common UI and a common music source.
