I love the Sonarworks correction, without it would be really hard to hear a sound correctly, so it's one of the most important thing to have when producing/mixing. I've just sent my Sennheiser PXC 550 to them in order to calibrate them. They have a good noise cancellation, i'm looking forward to hear the result. It's like with this correction, you don't need anymore to have expensive stuff. I've just sold my Adam A7x (which i don't like finally) to work now 100% with the small Iloud Micro haha. Coupling with 2 DMSD 60 and Sonarworks and my future corrected headphones it works perfectly, no need bigger or more than that.