If you don't need closed back, you can try the iBasso SR-1 - about as dark as Atticus and 99. Imho it has better resolution than the 99 and (Atticus when paired with a non optimal amp), not sure if it is still available
I will keep these in mind for later but now I want a closed back since (serious) sound leakage can be an issue.
I have expensive headphones and regardless the 99s are incredible
That's awesome I also tried quite a lot more expensive headphones in the CanJam but the 99s stuck in my mind.
Audeze LCD2 Classic (new ver.)
Fostex Th909 or Th900mk2
Thanks for sharing! The Fostex and the Audeze are completely out of my budget, I will try to listen the Sony's if I can though.