The combination of the capsule KK 131 with the output stage KM D is only one of the numerous options within the Neumann KM A/D small diaphragm microphone system. The Neumann system KM A/D is a modular microphone system for even the most demanding applications. Eight different small diaphragm capsules (KK 120 … KK 185) may be combined with either an analog output stage (KM A) or a digital AES 42 output stage (KM D). All components are available in nickel or Nextel black (nx). A comprehensive range of accessories ensures adaptability to the most diverse fields of application. The KK 131 is a free-field equalized pressure transducer. The sensitivity in the free sound field is flat up to 20 kHz. In the diffuse sound field, there is a roll-off above 5 kHz. Features: - Directional characteristic: omni (free-field equalized) - Part of the modular microphone system KM A/D - Comprehensive range of accessories