I bought the headphones on 26 / january / 2015 this first thing that made me happy was the excellent comfort of the headphones and the ability to stay on my head even if was leaning my head these headphones stay on your head and when you start playing music through them you would not  want to take them off .

I use audioengine D1 DAC/ AMP with the S/PDIF on my computer and the volume is more than enough on 35%  
 
This is the first headphone i have experienced the full range i didn't know how much detail i was missing  

I have heard 24 bit version of Pink floyd - comfortably numb, led zeppelin - no quarter , Jimi hendrix - voodoo Child and it felt like i was listening to it for the first time i heard new sounds that i never heard before 

list of songs 
Exist strategy - Horizon aura
Jake Chudnow - Shallow Anne
Ermes Thomas Window The Album Leaf
Zack Hemsey - The Way (Instrumental)
Ludovico Einaudi - Nuvole Bianche
Ludovico Einaudi - Divenire
Ludovico Einaudi - I Giorni
Al AMin - Meknes Arabia (to test the bass)
 

for the money there are very good closed headphones 

these were my first pro headphones and the left speaker just died 2 days ago i am very sad 
i loved them