The Beyerdynamic DT 100 16 ohm version are a closed back design for studio and broadcast applications. The 16 ohm model are more conducive to consumer audio products lacking a professional headphone amp. The DT 100's have excellent sound isolation, and are extremely comfortable to wear, making them one of the most popular closed back models amongst audio professionals.
This is the 16 ohm version of the Beyer DT 100 headphones.
Also available as a 400 ohm model.