The sound is amazing. The display turned out to be more useful than I thought it would. NOS is great but... If the display says 48 Khz when you are playing a 44.1 Khz track, you have a problem. The only player, besides using "aplay" in Linux to directly play the file I found that would simply play the file without upsampling to 48Khz was Audacious with careful attention to the settings. VLC and Strawberry have what amount to bit perfect settings but they don't work. This is a problem in Windows and Android as well. I can't speak for Apple products.
I am listening with 102 db/mw sensitivity headphones in NOS mode. There is no noise issue and the bass is amazingly clean.
It can't be overstated what damage is done to micro-dymamics with non power of two upsampling.
Very nicely done set from Elysian as always. Can check my full review here https://www.head-fi.org/showcase/elysian-acoustic-labs-apostle.27776/reviews#review-37400.
It was the best sound that I've ever heard in my life and a huge upgrade in my Head-Fi system.
This is a great cable that punches above its price bracket. It's one of my favorite cables so far.