Open-back Headphones to Elevate Your Productions Tailor-made for mixing, mastering, and editing, Beyerdynamic DT 1990 Pro MKII headphones offer engineers uncompromising sound, weight-optimized comfort, and heavy-duty craftsmanship. These open-back headphones leverage Tesla 45 driver technology to bring you class-leading resolution, imperceptibly low distortion, and transient response that’s truly second to none. The DT 1990 Pro MKII’s 30-ohm impedance offers exemplary performance with a broad range of playback devices, providing you with subdued yet detailed high end and precise low-frequency response down to the lowest octaves.