Digital Miniature Microphones

KM D

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Interface DMI-2

Interface DMI-2 portable

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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.


Interactive view of diagrams

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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