Poor headphones are a pain, good ones are a joy.
We only sell the joyful ones and we do this by having a very small range of phones that we know are superb!
Sennheiser as a brand has been associated with Lyric Hifi for 40 years from the days of the old yellow foam! We pick 3 of their best and do them.
Kef are newer to headphones but masters of sound, great engineering.