1/2″ microphone preamplifier Norsonic Nor1209

Name: 1/2″ microphone preamplifier Norsonic Nor1209
Brand: Norsonic
SKU: Nor1209
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Specification

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Description product
Accessories

Nor1209 1/2″ microphone preamplifier

The Nor1209 1/2″ microphone preamplifier has been designed for general use with most 1/2″ condenser microphone of type WS2 or LS2 according to IEC 61094-4: Measurement microphones – Part 4: Specifications for working standard microphones.

The key components that determines the accuracy of a sound level meter is the measurement microphone and its associated preamplifier. The effectiveness of these components in converting the acoustic signal into an electrical analogue set the maximum accuracy that can be achieved by the ensuing signal processing. Norsonic have a carefully balanced range of measurement microphones to suite a range of applications that complement modern instrumentation yet maintain traditional values.

We offer a broad range of 1/2″ and 1/4″ microphone preamplifiers.

Broad frequency response
Low noise
High input impedance
Low output impedance for driving long microphones cable without any loss in performance.
High dynamic range

Applications

Sound level meters
General purpose
Laboratory and field measurements

Features

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Low noise.
High input impedance.
Wide dynamic range.
Wide frequency range.
Low output impedance.
System Check facility.
Large supply voltage range.
Detachable preamplifier cable.

Specifications

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Frequency response (18 pF/small signal): 20 Hz ¬– 20 kHz: ±0,1 dB
Gain: Typ -0,1 dB (-0,2 with 20 pF)
Input impedance: 10 GΩ, 1,4 pF
Output impedance: 50 ohm typical

Noise (20 pF dummy mic.):
A-weighted < 2,2μV (typ 1,8μV)
Lin (20 Hz – 20kHz) <6 μV (typ 3,8 μV)

Power supply:
Single: 28 V (1mA) to 120 V (2,8mA)
Dual: ±14 V(1 mA) to ± 60 V (2,8 mA)
Maximum signal output voltage (peak): ±10 to ±50 V (dep. on supply)

Temperature: -25°C to +70°C (operation)
Relative humidity: 0 – 90%

Dimensions:
Length: 83 mm
Diameter: Body: 12,7 mm/Ring: 14 mm
Weight: 36 g
EC classification: As for sound level meter Nor140.