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The Neumann AK 20 microphone capsule is part of the KM 100 miniature series microphone systems. The AK 20 features a pressure gradient, single diaphragm transducer with a figure 8 polar pattern. The diaphragm diameter is just 16mm and all sound field components reach the diaphragm directly.
The end result is even frequency response and output levels from 0 to 180 degrees in proximity. The figure 8 polar pattern is effective in stereo MS recording (with an AK 40 or other cardioid mic), ambiance capturing or lectures and conferences with 2 speakers at either ends of the microphone.
Figure Eight Pattern
The pressure gradient element provides a figure eight pattern providing even frequency response and output levels at 0 and 180 degrees.
The capsule is developed for use with the KM100 and KM100F modular power supplies.
Neumann AK 20 Specs
Pressure Gradient Condenser
20 Hz - 20 kHz
Dynamic Range (Typical)
68 dB, Related at 1 Pa at 1 kHz (CCIR dB) 76.5 dB, Related at 1 Pa at 1 kHz (A-Weighted dB)
Maximum Input Sound Level
140 dB, Less than 0.5% THD (without Preattenuation) 150 dB, Less than 0.5% THD (with Preattenuation)