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​​Type 1904 is a compact, high-frequency ICP® (CCLD) microphone preamplifier designed for use with 1/2'' prepolarized condenser microphones. With a wide bandwidth up to 100 kHz, low distortion, and robust build, it is ideal for portable, lab, and field measurements.

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Featuring a BNC output, it ensures easy connection using standard, low-cost cables. Its low output impedance supports long extension cables without signal degradation. TEDS support (IEEE 1451.4) allows for smart identification and seamless system integration.

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Features

• Wide frequency response: 10 Hz – 100 kHz

• ICP compatible (2 mA – 10 mA)

• BNC connector for simple and cost-effective setup

• Low output impedance enables long cable runs

• TEDS support for smart transducer integration

• Rugged, compact design for demanding environments​

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Typical Applications

• Precision sound measurements

• Acoustic testing in R&D, production, and QA setups

• High-frequency noise and vibration diagnostics

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