Here we go again...the M50x overhyped and up voted as a quality headphone. Join head fi and read, is my suggestion. You'll find there are better headphones out there that sound better and are more "quality" than the M50x will ever be.
The ATH-M50x's are the headphones I have. They are amazing, I use them everyday weather is YouTube, music anything really. I recommend this to anyone who wants a great pair of headphones! :D