AlGaudio saidI don’t know if this is a poll, but I am another Sonos user, (the W4S modified version) who uses Deezer and will buy a PS DS dac when Deezer is available.
I’m sure if you don’t wait and go ahead now and hook up your Sonos Connect to the PS Audio DS it would sound noticably better than your Sonos W4S modified version if you have audiophile quality loudspeakers.
At this point I’m not in any big hurry to get MQA.