Review on Upgrade Your Studio Gear with Audio-Technica ATH-M40x Professional Studio Monitor Headphones: 90-Degree Swiveling Earcups, Pro-Grade Earpads/Headband, and Detachable Cables by Swami Nathan ᠌

I needed headphones to listen to music at work. They did their job well. After a couple of hours you want to take them off - your head or ears get tired. I don't understand the intricacies of sound quality. Before that, there were Koss UR40s - the sound was no worse, the sound insulation was lame, but they sat on the head many times better and the price was two times lower.