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Neumann KM145 Cardioid Miniature Microphone (AK45/KM100)

£849.00 £707.50 (ex. vat)

Neumann KM145

  • Neumann KM145

Neumann KM145 Cardioid Miniature Microphone (AK45/KM100)

The Neumann KM145 set includes a KM 100 (output stage), an AK 45 pressure gradient transducer with cardioid characteristic, a WNS 100 series Windscreen, an SG 21/17 mt Stand mount swivel and a Wooden box. The AK 45 transducer is very similar to the AK 40. However, it has an acoustic bass roll-off that is useful during applications when subsonic and low frequencies may cause difficulties. The AK 45 is optimized for a flat low frequency response at a recording distance of 15 cm (“speech cardioid”).

The variable condenser miniature microphone system consists of several active microphone capsules with different directional characteristics, an output stage, and numerous accessories. Currently there are seven active capsules available: omni diffuse- field equalized, omni free-field equalized, cardioid, wide-angle cardioid, cardioid with bass roll-off, hypercardioid, and figure-8. Through the modular construction of mic capsules and the output stage it is very easy to adapt the system to a wide range of applications. The mic becomes nearly invisible during work with cameras (film, video), on stage, or suspended from the ceiling in a concert hall. An active capsule can also be screwed directly onto the output stage. The result is a compact miniature microphone. The microphones are only 92 or 110 mm resp. long and 22 mm in diameter. They consist of the condenser capsule and the output stage. Both parts can be unscrewed from each other. The capsules attach to cables, capsule extensions, swivel mounts, table stands, goose-necks, stereo mounts, and hangers. Therefore, it is very easy to adapt the system to a wide range of applications. The active capsule itself is only 35 or 47 mm resp. long. The KM 100 output stage and the active microphone capsule may be separated by up to 50 m of interconnecting cable. These cables are 3 mm in diameter, and therefore very inconspicuous.

Neumann KM145 Features

  • Active capsules, detachable up to 50 m from the output stage
  • Great variability through capsule extensions and goosenecks
  • Switchable 10 dB pre-attenuation enables sound pressure levels up to 148 dB without being overloaded.
  • Set includes windshield and two different clamps
  • Transformerless circuitry
  • Extensive accessories
  • The KM 100 output stage has a 3-pin XLR connector

Neumann KM145 Specifications

  • Acoustical operating principle: Pressure gradient transducer
  • Directional pattern: Cardioid with low frequency roll-off
  • Frequency range: 20 Hz - 20 kHz
  • Sensitivity at 1 kHz into 1 kohm: 14 mV/Pa
  • Rated impedance: 50 ohms
  • Rated load impedance: 1000 ohms
  • Equivalent SPL CCIR 468-3: 26 dB
  • Equivalent SPL DIN/IEC 651: 17 dB-A
  • S/N ratio CCIR 468-3: 68 dB
  • S/N ratio DIN/IEC 651: 77 dB
  • Maximum SPL for THD 0.5%: 138 dB
  • Maximum SPL for THD 0.5% with preattanuation: 148 dB
  • Maximum output voltage: 10 dBu
  • Dyn. range of the mic. amplifier DIN/IEC 651: 121 dB
  • Supply voltage: 48 V ± 4 V
  • Current consumption: 2 mA
  • Matching connector: XLR 3F
  • Weight: 80 g
  • Diameter: 22 mm
  • Length: 92 mm
Manufacturer Neumann
Model KM145
GTIN 0615104070684
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