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Technical data KM D +

KM D + KK 131 KK 133 KK 183
Acoustic operating principle Pressure transducer Pressure transducer Pressure transducer
Directional pattern omni free-field equalized omni diffuse-field equalized omni diffuse-field equalized
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -41 dBFS -40 dBFS -41 dBFS
Equivalent noise level, CCIR3) 24 dB 28 dB 25 dB
Equivalent noise level, A-weighted3) 13 dB-A 15 dB-A 13 dB-A
Signal-to-noise ratio2) CCIR3) 70 dB 66 dB 69 dB
Signal-to-noise ratio2) A-weighted3) 81 dB 79 dB 81 dB
Max SPL at 0 dBFS 135 dB 134 dB 135 dB
Max SPL with 18 dB preatt. 153 dB 152 dB 153 dB
Latency 44,1/48 kHz (samples) 41 41 41
Latency 88,2/96 kHz (samples) 49 49 49
Latency 176,4/192 kHz (samples) AES 3 99 99 99
Current consumption max. 150 mA (DPP) max. 150 mA (DPP) max. 150 mA (DPP)
Weight output stage 70 g 70 g 70 g
Weight capsule 11 g 49 g 11 g
Diameter 22 mm 22 mm 22 mm
Length 108 mm 128 mm 108 mm
KM D + KK 131 KK 133 KK 183
Acoustic operating principle Pressure transducer Pressure transducer Pressure transducer
Directional pattern omni free-field equalized omni diffuse-field equalized omni diffuse-field equalized
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -41 dBFS -40 dBFS -41 dBFS
Equivalent noise level, CCIR3) 24 dB 28 dB 25 dB
Equivalent noise level, A-weighted3) 13 dB-A 15 dB-A 13 dB-A
Signal-to-noise ratio2) CCIR3) 70 dB 66 dB 69 dB
Signal-to-noise ratio2) A-weighted3) 81 dB 79 dB 81 dB
Max SPL at 0 dBFS 135 dB 134 dB 135 dB
Max SPL with 18 dB preatt. 153 dB 152 dB 153 dB
Latency 44,1/48 kHz (samples) 41 41 41
Latency 88,2/96 kHz (samples) 49 49 49
Latency 176,4/192 kHz (samples) AES 3 99 99 99
Current consumption max. 150 mA (DPP) max. 150 mA (DPP) max. 150 mA (DPP)
Weight output stage 70 g 70 g 70 g
Weight capsule 11 g 49 g 11 g
Diameter 22 mm 22 mm 22 mm
Length 108 mm 128 mm 108 mm
KM D + KK 185 KK 120
Acoustic operating principle pressure gradient transducer pressure gradient transducer
Directional pattern Hypercardioid figure-8, side-fire
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -42 dBFS -41 dBFS
Equivalent noise level, CCIR3) 25 dB 25 dB
Equivalent noise level, A-weighted3) 16 dB-A 15 dB-A
Signal-to-noise ratio2) CCIR3) 69 dB 69 dB
Signal-to-noise ratio2) A-weighted3) 78 dB 79 dB
Max SPL at 0 dBFS 136 dB 135 dB
Max SPL with 18 dB preatt. 154 dB 153 dB
Latency 44,1/48 kHz (samples) 41 41
Latency 88,2/96 kHz (samples) 49 49
Latency 176,4/192 kHz (samples) AES 3 99 99
Current consumption max. 150 mA (DPP) max. 150 mA (DPP)
Weight output stage 70 g 70 g
Weight Capsule 19 g 37 g
Diameter 22 mm 24 mm
Length 108 mm 130 mm

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Neumann - KM D

Neumann

The Neumann KM D Miniature Microphone System

The modular KM D miniature microphone system is a further development of the successful KM 100 series. The newly developed passive capsule design is available with 8 different directional characteristics, and can be combined modularly as desired with a digital (KM D) output stage in accordance with the AES 42 standard. The new, considerably smaller microphone capsules and an extensive program of accessories permit excellent adaptation of the microphone system to a wide range of applications.

Through the use of the most up-to-date electronic components the system offers many electroacoustic and operational advantages, such as lower self-noise, a wider dynamic range and very high immunity to electromagnetic interference. The acoustics of the capsules were taken from the proven KM 100 system.

Overview of Microphone Capsules

  • KK 120: Figure-8
  • KK 131: Omni (free-field equalized pressure transducer)
  • KK 133: Omni (diffuse-field equalized pressure transducer/capsule including titanium diaphragm with exceptional acoustic properties)
  • KK 183: Omni (diffuse-field equalized pressure transducer)
  • KK 143: Wide-angle cardioid
  • KK 145: Cardioid with acoustic bass roll-off in free field
  • KK 184: Cardioid
  • KK 185: Hypercardioid

KM D Output Stage

The KM D digital output stage converts the signal from the capsule directly into a digital signal. The result is an AES/EBU signal with 24 bits and a large dynamic range. The integrated digital signal processor (DSP) permits remote control of the microphones, including the digital gain, pre-attenuation (6 dB, 12 dB or 18 dB) and low-cut filter (0 Hz, 40 Hz, 80 Hz or 160 Hz). An integrated peak limiter and compressor/limiter with additional de-esser function prevents any overloading of the audio signal.

The dimensions (diameter 22 mm, length 93 mm) of the analog and digital output stages are identical. As a result, all accessories can be used in combination with both output stages. Upon request, a mechanical adapter can be supplied to adapt microphone capsules of the KM 100 system (AK series) to the KM D output stages.

The modular solution permits the microphone capsule to be separated from the output stage by a distance of up to 100 m. The LC 4 microphone cable with a length of 5 or 10 meters is available as a standard solution. Alternatively, capsule extensions of different lengths, swivel joints and stand mounts, etc., can be used for a flexible system setup.

The capsule heads KK 183, KK 184 or KK 185, together with the appropriate output stage, are also available as a set, in which case they are referred to as KM 183 A, KM 183 D, etc.

Features And Specs

Technical data KM D +

KM D + KK 131 KK 133 KK 183
Acoustic operating principle Pressure transducer Pressure transducer Pressure transducer
Directional pattern omni free-field equalized omni diffuse-field equalized omni diffuse-field equalized
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -41 dBFS -40 dBFS -41 dBFS
Equivalent noise level, CCIR3) 24 dB 28 dB 25 dB
Equivalent noise level, A-weighted3) 13 dB-A 15 dB-A 13 dB-A
Signal-to-noise ratio2) CCIR3) 70 dB 66 dB 69 dB
Signal-to-noise ratio2) A-weighted3) 81 dB 79 dB 81 dB
Max SPL at 0 dBFS 135 dB 134 dB 135 dB
Max SPL with 18 dB preatt. 153 dB 152 dB 153 dB
Latency 44,1/48 kHz (samples) 41 41 41
Latency 88,2/96 kHz (samples) 49 49 49
Latency 176,4/192 kHz (samples) AES 3 99 99 99
Current consumption max. 150 mA (DPP) max. 150 mA (DPP) max. 150 mA (DPP)
Weight output stage 70 g 70 g 70 g
Weight capsule 11 g 49 g 11 g
Diameter 22 mm 22 mm 22 mm
Length 108 mm 128 mm 108 mm
KM D + KK 131 KK 133 KK 183
Acoustic operating principle Pressure transducer Pressure transducer Pressure transducer
Directional pattern omni free-field equalized omni diffuse-field equalized omni diffuse-field equalized
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -41 dBFS -40 dBFS -41 dBFS
Equivalent noise level, CCIR3) 24 dB 28 dB 25 dB
Equivalent noise level, A-weighted3) 13 dB-A 15 dB-A 13 dB-A
Signal-to-noise ratio2) CCIR3) 70 dB 66 dB 69 dB
Signal-to-noise ratio2) A-weighted3) 81 dB 79 dB 81 dB
Max SPL at 0 dBFS 135 dB 134 dB 135 dB
Max SPL with 18 dB preatt. 153 dB 152 dB 153 dB
Latency 44,1/48 kHz (samples) 41 41 41
Latency 88,2/96 kHz (samples) 49 49 49
Latency 176,4/192 kHz (samples) AES 3 99 99 99
Current consumption max. 150 mA (DPP) max. 150 mA (DPP) max. 150 mA (DPP)
Weight output stage 70 g 70 g 70 g
Weight capsule 11 g 49 g 11 g
Diameter 22 mm 22 mm 22 mm
Length 108 mm 128 mm 108 mm
KM D + KK 185 KK 120
Acoustic operating principle pressure gradient transducer pressure gradient transducer
Directional pattern Hypercardioid figure-8, side-fire
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -42 dBFS -41 dBFS
Equivalent noise level, CCIR3) 25 dB 25 dB
Equivalent noise level, A-weighted3) 16 dB-A 15 dB-A
Signal-to-noise ratio2) CCIR3) 69 dB 69 dB
Signal-to-noise ratio2) A-weighted3) 78 dB 79 dB
Max SPL at 0 dBFS 136 dB 135 dB
Max SPL with 18 dB preatt. 154 dB 153 dB
Latency 44,1/48 kHz (samples) 41 41
Latency 88,2/96 kHz (samples) 49 49
Latency 176,4/192 kHz (samples) AES 3 99 99
Current consumption max. 150 mA (DPP) max. 150 mA (DPP)
Weight output stage 70 g 70 g
Weight Capsule 19 g 37 g
Diameter 22 mm 24 mm
Length 108 mm 130 mm

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Neumann - KM D

Neumann - KM D

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