Beyerdynamic DT 770 PRO Closed-Back Reference Headphones | Model: 250 OhmsFor decades now, professional users all around the world have placed their trust in beyerdynamic's classic range: DT 770 880 990 PRO. These benchmark setting studio headphones, available in three different models, boast extremely detailed resolution and very transparent sound. The DT 770 PRO headphones is the ranges closed back model and offers maximum flexibility and detailed sound that you can rely on. The beyerdynamic DT 770 PRO headphones have