TYPE 2699

CCLD, A-weighted microphone preamplifier

Designed to eliminate low-frequency disturbance caused by body boom and road noise during in-car measurements

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Type 2699 uses a built-in, A-weighting filter to eliminate low-frequency disturbance caused by body boom and road noise which would otherwise be a source of error during in-car measurements. Its robust, compact design means that you can use Type 2699 in a wide range of environmental conditions.

USE SCENARIOS

  • In-car measurements to ANSI S 1.4, IEC 60651 and IEC 61672 standards
  • General sound measurements

FEATURES

  • Connects directly to CCLD input
  • Current output allows use of long, inexpensive, coaxial cables
  • Built-in, A-weighting filter for in-car noise-signal reduction
  • Dual-polarity overload-detection facility
  • Low noise and high dynamic range
  • CE and Australian C-tick compliance
Diameter
1/2
Optimised for
A-weighted CCLD
Connector at preamplifier
BNC
Supply voltage
28
Max output voltage (peak)
7
Max output current (peak)
18
Frequency range
A-weighted
Attenuation
< 0.3
Noise A-weighted, typical
8
Input impedance
10||0.5
TEDS UTID
1025 from serial number 2264319