cool hunting have a cool video about the making of the tma-1, the headphones i recently posted about. the video features kibisi designers jens jartin skibsted and lars holme larson and aiaiai co-founder frederik jørgensen, talking about the design process.
these really were designed with dj's in mind, with almost 30 in total consulted through the development and testing process. key to their thinking was that a dj has a job to do, and the headphones are a tool to help them do it. i really like the bit where he says that the adjustment holes are inspired by crutches. brilliant!