Beyerdynamic DT 770 Pro Studio Headphones The Beyerdynamic DT 770 Pro is a closed dynamic headphone and has been designed for exceptional sound quality in critical music and sound monitoringIdeal for use in recording studios, post-production and broadcasting situations, the DT 770's cushioning and adjustable padded headband provide comfort during even the longest studio sessions. A low-mass coil and diaphragm assembly produce a transient performance equalled only by electrostatic earphones and, in combination with a carefully tailored response, offer a natural and balanced sound. The DT 770 Pro possesses 'bass reflex' technology, allowing for improved bass response. With 80 ohm drivers and a gold-plated 3.5mm stereo jack with 1/4 inch adaptor, the DT 770 Pro Headphones are suitable for use with almost all headphone amps.