It is too bad that the Node 2 won't downscale to something your DAC would like...
Seems like you have a few options... Replace the Node with a Streamer that will up/downscale... Replace the DAC with one that will manage higher Rez files/streams... Replace the Node and DAC with an all in one Streamer/DAC solution...
If you use Roon it can up/downscale for you... Although I am not sure if Roon will run on your Node...
Good luck in your choices...
Seems like you have a few options... Replace the Node with a Streamer that will up/downscale... Replace the DAC with one that will manage higher Rez files/streams... Replace the Node and DAC with an all in one Streamer/DAC solution...
If you use Roon it can up/downscale for you... Although I am not sure if Roon will run on your Node...
Good luck in your choices...