Monitor 80
Recently purchased monitor 80 headphones and was more than happy with the performance loved the quality and the airspace that it gave. had an issue with the left headphone and was surprised to see that customer service was responsive understanding an overall dedicated to its existing clientele.
If this is a new company for you or a new brand that you are not sure of, I highly suggest you try them out.
(also there website is oneodio.com not .de)