I’ve been a user and fan of iFi audio for years (currently I own the iFi xDSD and the hip-dac), the two headphones I currently own are closed back, Shure SRH1540 and Beyerdynamic T90 Chrome.
In search for my first open back headphones I tried the Sennheiser HD 6XX that a friend lent me for a week and although I enjoy the open sound and soundstage that a open back headphone provides, and the brilliantly executed midrange of the HD 6XX, I found...