Cardas or Nordost for Simaudio/Magico

+1 @ghdprentice - Use cables for tuning. I took that advice and tried Cardas Clear for my rig.  It works.

The reputation I’ve heard about Nordost is that they’re bright. IMHO, this isn’t a good match with Magico.
 

The first generation of nordost were a bit thin sounding. 
I would not call the current gen Heimdall 2, Frey 2 and Tyr 2 bright. Fast, accurate and transparent yes. I would also not recommend using Nordost in a system where certain sonic quantities need to be masked. It’s all system dependent. 

@jayctoy Would you say the difference between Frey2 and Tyr2 spc is bigger than between Tyr2 and Valhalla2?

@audphile1    +1   Do you believe the Frey 2 is the sweet spot of the Norse series, or should one go all out with the Valhalla 2 and be done?

Haven’t heard Valhalla in my system but…Frey 2 is better than Heimdall 2 and Tyr 2 is better than Frey 2. So each step up the line gives you a more refined sound, better details and lower noise floor. I can’t imagine Valhalla not beating Tyr 2. 
But as I said earlier, it’s system dependent. For me personally a full loom of any cable manufacturer never worked. At some point you end end with too much of a good thing. It’s important to balance it all in this case using different cables.