Perhaps one of the candidates for the most popular headphones of all time could be the Sennheiser HD-25's which were first released in 1988 and can still be found today, although in a more contemporary design. Many would claim these to be the most likely runaway winner and, if popularity alone through time is any indication, we would have to agree. Sennheiser has now released the successor to the HD-25 in the HD-8 DJ and, if you are a media professional who spends hours on end with a set of headphones on your head, these definitely merit a close look. A word to the wise though, the HD-8 DJs forge new ideas on just what professional headphones should be, no doubt the years of advise provided DJ's and studio professionals.