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AWA14604 Low-Noise ICP 1/2" Preamplifier, Long-Cable
Preamplifier
From Sound Level Meters and Acoustic Imagers to Calibrators and sound level sensor for professional testing and research.
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AWA14604 Low-Noise ICP 1/2" Preamplifier, Long-Cable

Ultra-Low Self Noise — Background noise as low as 4µV (A-weighted), ensuring accurate measurement even in quiet environments.

Wide Frequency Response — Covers 10 Hz to 100 kHz, suitable for both standard acoustic measurement and high-frequency applications.

Long-Distance Transmission — Supports up to 100 m coaxial cable between preamplifier and measuring instrument, ideal for remote or large-scale monitoring setups.

Versatile Applications — Works with Φ12.7 mm (1/2") prepolarized microphones, extending use to multi-channel noise analyzers and other advanced setups.

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    product details
    AWA14604E Preamplifier01
    01

    Product Description

    Model AWA14604 preamplifier is a kind of ICP preamplifier. It is powered by the constant-current source and its output uses BNC plug. It has many advantages, such as high input impedance, low output impedance, and low noise etc. It can be connected to the general measuring instruments easily. A 100 m long coaxial cable can be used between the preamplifier and the measuring instruments. With Φ12.7 mm (1/2”) prepolarization measurement microphone, it can be used in other applications, such as multi-channel noise analyzer.

    Product Video

    Features

    Frequency response: 20 Hz–50 kHz (±0.2 dB) / 10 Hz–100 kHz (±0.5 dB)
    Total Harmonic Distortion (THD) ≤ 0.1%
    Self-generated noise: ≤4µV (A-weighted); ≤15µV (22.4 Hz–22.4 kHz)
    Input impedance ≥2 GΩ // 0.5 pF; output impedance ≤50Ω
    Powered by ICP constant-current source (2 mA–10 mA)
    BNC plug output connection
    Compatible with Φ12.7 mm (1/2") microphones, thread M11.7 mm × 0.423 mm (60 UNS)
    Working temperature range: -20°C to +60°C

    Main Performance Indicators

     AWA14604 PREAMPLIFIER

    Size

    Φ12.7mm(1/2")

    Frequency response

    20 Hz~50 kHz ±0.2 dB; 10 Hz~100 kHz±0.5 dB

    Transmission gain

    -0.3dB

    Input impedance/capacitance

    ≥2 GΩ//0.5 pF

    Total Harmonic Distortion (THD)

    ≤0.1%

     

    Max. output voltage

     

    ≥5.0 VRMS

    Output impedance

    ≤50Ω

    Self-generated noise (background noise)

     

    A weighted: ≤4µV, 22.4

    Hz~22.4 kHz: ≤15µV

    Power supply

    ICP (2 mA ~10 mA)

    Output connection

     

    BNC plug

    Microphone screw thread

    M11.7 mm×0.423 mm (60 UNS)

    Working temperature

     -20 ℃~+60 ℃

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