AKG PZM6 D First-Class Boundary Layer MicrophoneThe PZM6 D from AKG is a high performance hemispherical boundary layer microphone designed for many applications, from miking full orchestras or individual musical instruments to security or teleconferencing, as well as film and video productions. Two selectable frequency responses (flat rising) provide greater flexibility in mic placement and sonic character. The rising position delivers bright sound without boosting high frequencies on the recording