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AWA14604E ICP BNC 1/2" Preamplifier, Single-Cable Design
Preamplifier
From Sound Level Meters and Acoustic Imagers to Calibrators and sound level sensor for professional testing and research.
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AWA14604E Preamplifier01.jpg

AWA14604E ICP BNC 1/2" Preamplifier, Single-Cable Design

Single-Cable Simplicity — Integrates signal and power into one cable with a standard BNC output, eliminating the need for specialized multi-pin B&K or LEMO connectors.

Plug-and-Play Compatibility — Connects directly to the standard BNC input of general-purpose measuring instruments using a simple single-core shielded cable, no adapters required.

Exceptionally High Input Impedance — ≥10 GΩ input impedance minimizes signal loss and preserves measurement accuracy at the source.

Extended High-Frequency Range — Frequency response up to 200 kHz, suited for advanced acoustic and ultrasonic measurement needs.

Lower Noise Floor — Self-generated noise as low as 3 µV, enabling more precise detection of low-level signals.

Multi-Channel Ready — Compatible with Φ12.7 mm (1/2") prepolarized microphones, suitable for multi-channel noise analyzer applications.

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    AWA14604E Preamplifier01
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    Product Description

    The AWA14604E preamplifier is powered by a constant current source (ICP) and integrates signal and power lines into a single cable. It features a BNC output connector, allowing for convenient connection to the standard BNC inputs of general-purpose measuring instruments using a simple single-core shielded BNC cable—eliminating the need for specialized multi-pin B&K or LEMO connectors—which makes it highly popular among users.
    Manufactured by our company, the AWA14604E preamplifier is characterized by high input impedance, low output impedance, and low noise. It supports cable runs of up to 100 meters between the preamplifier and the measuring instrument and is designed for use with Φ12.7 mm (1/2-inch) prepolarized measurement microphones in applications such as multi-channel noise analyzers.

    Product Video

    Features

    Wide Frequency Coverage — Delivers stable performance from 20 Hz to 20 kHz (±0.2 dB), extending up to 200 kHz (±0.5 dB) for demanding high-frequency measurement tasks.
    Exceptionally High Input Impedance — ≥10 GΩ // 0.5 pF input impedance minimizes signal loss and preserves measurement precision at the source.
    Low Output Impedance — ≤50 Ω output impedance ensures clean, stable signal transmission to connected instruments.
    Ultra-Low Distortion — Total Harmonic Distortion (THD) kept below 0.1% for highly accurate, faithful signal reproduction.
    Strong Output Capacity — Maximum output voltage of ≥5.0 Vrms at +30 V supply voltage, supporting a wide dynamic range.
    Remarkably Low Self-Noise — Self-generated noise as low as ≤3 µV overall, and ≤12 µV within 22.4 Hz–22.4 kHz, enabling detection of even the faintest signals.
    Standard ICP Power Supply — Operates on a constant-current source (2 mA–10 mA), compatible with common measuring instruments.

    Main Performance Indicators

    AWA14604E Preamplifier

    Size

    Φ12.7mm(1/2")

    Frequency response

    20Hz~20kHz±0.2dB

    10Hz~200kHz±0.5dB

    Gain

    -0.2 dB

    Input impedance

     ≥10 GΩ//0.5 pF

    Total Harmonic Distortion (THD)

    ≤0.1%

    Maximum output voltage

    ≥5.0 Vrms (at +30 V supply voltage)

    Output impedance

    ≤50 Ω

    Self-generated noise (noise floor)

    ≤3 μV; 22.4 Hz–22.4 kHz: ≤12 μV

    Power supply

    ICP (2 mA–10 mA)

    Output connector

    BNC jack

    Microphone thread

    M11.7 mm × 0.423 mm (60 UNS)

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