Aurender's "Sound"

Just picked up an Aurender N100H. Great unit. However it's a bit on the warm and dark side, which doesn't sit well with my Pass class A amp. It's like a double whammy of warmth. Great for vocals, but hard to rock out on. But I like the unit and am trying to keep it.

Would love it if I could find a simple way to address this, like with a different USB cable to lighten things up a bit. 

If it comes to it, I might give up the Pass for something more neutral, as nice as this amp is it's not the best for music on the more lively side, or rock. (My tastes and opinions.) Even considering a class D amp like Nord, which is pretty much dead neutral which could peel back some of that warmth and darkness.

So is this a digital question, amp question or cable question? Yes to all.

Has anybody else encountered this double whammy of warmth, and what was the fix. Thanks all.