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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.

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PA6 Phantom-Powered Hydrophone Preamp
$70.00
The PA6 is designed to connect passive piezo sensors, used in most hydrophones, to professional-grade microphone preamplifiers. These include preamps that are built into...
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IEPE1 IEPE-Powered Hydrophone Preamp
$80.00
The IEPE1 is designed to connect passive piezo sensors, used in most hydrophones, to constant-current bias supplies, typically used in data acquisition devices. Integrated...
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Aquarian Scientific PA4-BO
PA-4 Hydrophone Preamplifier Board
$70.00
Low-noise broadband hydrophone amplifier for use with passive hydrophones. Provides the necessary signal conditioning for connecting hydrophone to recorder, sound interface, or...
 
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PA1 Hydrophone Buffer Amp
$40.00

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.

 
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Honeytone Amplified Speaker
$33.99

Amplified speaker for use with H1a hydrophones

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