B&K 2250 Light, User Manual, Page: 14 / 208

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2250 Light – User Manual
2.2 Instrument Components
An overview of the main instrument components is provided in Fig.2.1. The descriptions that
follow refer to those components.
Fig.2.1 Instrument components
1) Measurement Microphone: A Brüel & Kjær Prepolarized Free-field ½

Microphone is
used. A robust and reliable microphone with a wide frequency range
2) Preamplifier: Used to convert the high-impedance output of the microphone to low
impedance, suitable for driving long extension cables
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