Neumann AK50

AK... active capsules are part of the variable miniature microphone system.

Together with the KM 100 output stage AK... active capsules form a complete microphone.

AK 50 and KM 100, for example, make up the KM 150.
The AK 50 is a pressure gradient transducer with a hypercardioid characteristic.
Attenuation of sound incidence from the side or rear is approximately 10 dB.
Minimum sensitivity occurs at an angle of about 120°.