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The Neumann AK 31 microphone capsule is part of the KM 100 miniature series microphone systems. The AK 31 features a pressure gradient, single diaphragm transducer with an omni-directional polar pattern.
The AK 31 produces a flat frequency response up to 20kHz. In the diffuse field the microphone has a high frequency roll-off above 5kHz. The microphone is best applied as a spot microphone for piano, wind instruments, strings, percussion and drums, room ambiance capturing or stereo recording.
The capsule is developed for use with the KM100 and KM100F modular power supplies.
The pressure gradient element provides an omnidirectional pattern providing even frequency response and output levels.
In the Box
Neumann AK 31 - Omnidirectional Miniature Capsule for KM 100 and KM 100F Power Supplies
1 Year Warranty
Table of Contents
20 Hz - 20 kHz
Dynamic Range (Typical)
69 dB, Related at 1 Pa at 1 kHz (CCIR dB) 78 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)
Phantom +48v (KM 100 Power Supply)
XLR-3 Type (KM 100 Power Supply)
Yes, -10 dB Preattenuation
Low Frequency Roll-Off
Use KM 100F Power Supply
3.68 x 0.88" (92 x 22mm)
2.82 oz. (80 g)
Neumann AK 31 - Omnidirectional Miniature Capsule Review