Neumann Studio Headphones The Neumann NDH 20 is a closed-back headphone combining excellent isolation with the carefully balanced sound image and outstanding resolution you'd expect from a Neumann productThe NDH 20 is thus ideally suited to monitoring and mixing tasks, even in loud and noisy environments. Circum-aural memory foam ear pads offer high long-term comfort. The NDH 20 is suited to all applications that require high sound isolation such as monitoring for musicians and engineers in the tracking room as well as FOH work. It is also an excellent choice for critical listening, free from disturbance from the outside world and, vice versa, without causing disturbance to people nearby due to leakage. Thanks to its extended frequency response ranging from 5 Hz to 30 kHz the NDH 20 is particularly helpful to check the upper and lower extremes of the audio band. Unlike most other closed-back headphones, the Neumann NDH 20 is suited to mixing purposes too. An unusually even frequency re