Streamer/DAC combinations

I have the Pontus 2 12th with the Iris DDC and it raised the sou d quality significantly. Still use the Lumin U1 mini and connect it to the Iris with a Nordost purple USB connector, which allows for the I2S input into the Pontus. Each addition made the SQ improve incrementally. The Iris was the most significant sound improvement.   Good luck.

Definitely,, upgrade the DAC!! Then,  mod the Node with a LPS ( I used a TeddyPardo,  but there are other brands out there too. ) I'm using a Node 2i,  feeding a PS Audio Directstream DAC Mk1.  I  have a great soundstage,  both wide and deep. Great imaging.  The lps made a significant difference.  The internal dac in the Node is just not the quality you need for your system; it was built to a price point!

You didn't state your budget,  but right now TMR is selling factory inspected PS Audio Directstream DAC Mk1 for $1799, which is a smoking deal!! These are units that people have traded in for the new Mk2 unit.  The Mk1 was $6000 when new,  and the Mk2 is $8000.

Another vote for adding the Teddy Pardo LPS to the node. Well worth the small cost. 

Try a Lümin D2 deals are out there on used. 
The D3 is the newer version. 
 

I have really enjoyed my D2

$3,200 range. 

I’m just getting into the streaming scene, and ended up with an IFi Stream connected to my Schiit Urd through a Schiit Bifrost 2/64. Still warming up to streaming in general, so didn’t go all out like I’m known to do. Time will tell.    Thanks to all in this forum with comments/recommendations getting me started off.