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Amplifiers

Consider using a digital recorder as a mic preamp. All of them will allow you to monitor sound live, whether recording or not. For details, check out the new Zoom H5 and others on our recorders page.

$26.00

Amplified speaker for use with H1a hydrophones

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$65.00
The PA6 is designed to connect passive piezo sensors, used in most hydrophones, to professional-grade microphone preamplifiers. These include preamps that...
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$65.00
The IEPE1 is designed to connect passive piezo sensors, used in most hydrophones, to constant-current bias supplies, typically used in data acquisition...
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$36.99

Low-cost Hydrophone FET buffer amp, low-noise, low-power, 3dB gain. Use with H1 hydrophones. Also works great for buffering piezo contact microphones, electric guitars and other high-impedance audio signals.