Another cable question

I have the N150 and Pontus II.  I think what you maybe looking for is a little more warmth and smoothness.  At least that was one area I had to work on in my setup when comparing digital play back to records.  I'm using Cardas Clear interconnects from the Pontus to my preamp and CLEAR HS USB from the Aurender to Pontus.  Also Clear power cords on both.  It will be a pretty healthy investment so you may want to start with the digital connection to see if that's what does what you looking for first.  The Cardas Clear did for me and without loosing any detail in the Aurender or Pontus.

Yes sound sigs of both are the same.  I have the N200 in another system:-).

I'd start with the Cardas Clear HS USB, or digital spdif depending on how you've connected the N200 to the Pontus.  Also, if you do, give it a solid week or so to settle in.  We're not talking smack you in the face changes.  The changes will be subtle but as you continue listening, you'll begin to experience that warmth and smoothness I mentioned before and how your digital is becoming a little more similar to vinyl.  At least I did.