RME is a fine DAC. Only reason I sold mine is that my new Integrated has a DAC. I used it with a Bluesound Vault and it sounded excellent. That DAC will be a good pairing , the Node sounds good through it's analog outs but will sound better through your DAC.
Buy something like a Bluesound Node, subscribe to Qobuz or Tidal and there's no looking back.