Close shot of the KM 184 D nx digital microphone

By Requirement Profile:
By Type:
Pure Neumann sound in the digital domain, for use with AES/EBU,
AES42 or S/PDIF. The signal is converted directly at the capsule. Difficult questions concerning the optimal preamp and A/D converter for a Neumann mic are thus a thing of the past.
Zoom: The KM D family
Technical data KM D + KK 131, KK 133, KK 183
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
Technical Data KM D + KK 143, KK 184, KK 145
KM D + KK 143 KK 184 KK 145
Acoustic operating principle pressure gradient transducer pressure gradient transducer pressure gradient transducer
Directional pattern Cardioid wide Cardioid cardioid low frequ. roll-off
Frequency range 20 Hz...20 kHz 20 Hz...20 kHz 20 Hz...20 kHz
Sensitivity1) -39 dBFS -39 dBFS -40 dBFS
Equivalent noise level, CCIR3) 24 dB 24 dB 24 dB
Equivalent noise level, A-weighted3) 13 dB-A 13 dB-A 14 dB-A
Signal-to-noise ratio2) CCIR3) 70 dB 70 dB 70 dB
Signal-to-noise ratio2) A-weighted3) 81 dB 81 dB 80 dB
Max SPL at 0 dBFS 133 dB 133 dB 134 dB
Max SPL with 18 dB preatt. 151 dB 151 dB 152 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 15 g 15 g 15 g
Diameter 22 mm 22 mm 22 mm
Length 108 mm 108 mm 108 mm
Technical Data KM D + KK 185, KK 120
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
General Specifications of the Solution-D microphones
Interface: AES42

Remote controlled functions:
- Polar pattern4)
- Low-cut: flat, 40, 80, 160 Hz
- Pre-attenuation: 0 , -6, -12, -18 dB
- Gain: 0...63 dB in 1 dB steps, clickless
- Testsignal: 1 kHz, pink noise, white noise
- Sampling rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
- Parametric compressor/limiter (incl. de-esser function)
- Independent peak limiter avoiding any clipping
- Switch functions: soft muting, phase reverse, signal lights
- Signal lights: red4) and blue LEDs
- System functions, firmware download

A/D conversion: Neumann process (patented),
28-bit internal word length

Digital signal processing: Fixed-point,
variable internal word length 28 bits to 60 bits

Synchronization:
- Asynchronous operation (free-running, AES42 - Mode 1),
basic frequency accuracy: ± 25 ppm
- Synchronous operation (AES42 - Mode 2),
pulling range: Min. ± 100 ppm

Power supply (phantom power complying with AES42)

Output: XLR3M, 24 bits as per AES/EBU (AES3)
________________________
All data with respekt to 0 dB pre-attenuation and 0 dB gain.
1) at 1 kHz
2) re 94 dBSPL
3) according to IEC 60268-1;
CCIR-weighting according to CCIR 468-3, quasi peak;
A-weighting according to IEC 61672-1, RMS
4) D-01 only





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