Neumann AK 40 Cardioid Capsule for KM 100 Series Microphones

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 30 and KM 100, for example, make up the KM 130. AK 40 is a pressure gradient transducer with cardioid characteristic. The frequency curves are very even and parallel to 0° sound incidence. Sound sources within a pickup angle of ± 135° are transmitted without coloration.