The advice I could give would be to hear an envisaged headphones in their own environment with their own equipment; I think the only way to be, form an opinion for himself; and that's the point eventually.
When I recently decided to zuzulegen me another and new headphones, so my first step was to the otolaryngologist to evaluate my own hearing to.
Only after that I heard at home some of my favorite headphones sample (different price ranges, and "higher-priced").
Become it is the Philips Fidelio X1 ...
So give your favorites a chance to get used to you :-)
For mine, since my "hi" -Anfangszeiten (we are talking about the first 70`ern and then) consolidated opinion born of the experience:
Change your headphones sound quality in virtually inaudible mass; it is more a habit that leads us to believe otherwise ...