You lost me here: have balanced outputs to go to my DAC.
What do you mean by ’upgrade to higher quality’? Quality of what? As long as the signal is in the digital domain there is no upgrade in the sound. You plan to use a separate DAC, so all you need from the streamer is to have a good wifi connection and a nice user interface. The Bluesound is very good at that. Any Apple or Android tablet, or a silent laptop or fanless PC will do fine too.