OP,
It really depends on which Node you have. The Node 2 and Node 2i DACs aren't very good as previously mentioned, the DAC in the Node 130 is better. Some have recommended the Teddy Pardo LPS, but at $425 is rather expensive. I use an LHY LPS which at $279 is more cost effective, and for me yielded surprisingly good results.....however I have a Node 130. Only you can tell which DAC is better on SQ