"So how do I get the streaming data to my audio system? "
Assuming you have WiFi service in your home, the approach to use is stream wirelessly from Bluesound Node2 and connect through either, 1) analog outputs to a preamp/integrated, or 2) digital coax/optical to an external DAC and analog out from DAC to preamp/integrated. Any streamer that supports WiFi will work.
Assuming you have WiFi service in your home, the approach to use is stream wirelessly from Bluesound Node2 and connect through either, 1) analog outputs to a preamp/integrated, or 2) digital coax/optical to an external DAC and analog out from DAC to preamp/integrated. Any streamer that supports WiFi will work.