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 digital recorders, high-quality computer sound interfaces, PA systems, and mixing consoles. The PA6 will also be useful for many other sensors, such as geophones, accelerometers, contact microphones, and any device requiring a low-noise, high-impedance buffer that works within the human auditory spectrum and above.
This preamp can be used in combination with Aquarian Audio AS-1.
Phantom power is required. 48V is the standard but the PA6 is designed to work with supplies as low as 24V with negligible performance difference.
NOTE: This amplifier is not waterproof. Care should be taken to keep connectors and electrical components as dry as possible, especially when working in corrosive environments such as seawater or chlorinated water.
Specifications:
Default board setup: 26dB gain, differential output, P48 phantom-powered.
Equivalent Input Noise: | -120dBV | 10nF input shunt, A-weighted 20Hz – 22KHz, 1KΩ output load |
Total Broadband Output Noise: | -88dBV | 10nF input shunt, Unweighted 10Hz – 90KHz, 1KΩ output load |
Bandwidth: | 14Hz - 90KHz 4Hz - 270KHz | +0/-0.5dB, 1KΩ output load +0/-3dB, 1KΩ output load |
THD+N: | <0.01% | @1KHz, -60 to -20 dBV input,1KΩ output load |
Max output: | >8dBV RMS | @1KHz, 1KΩ output load, 1% THD |
Current consumption: | 8.5 mA 3.4 mA | 48V Phantom Power (from mic preamp) 24V Phantom Power (from mic preamp) |
Gain: | 26dB | Differential: pins 2 & 3 (Standard—can be factory-modified) |
Z out: | 17 Ω | Each phase to ground |
Z in: | 10 MΩ | (Standard—can be factory-modified to filter low frequencies) |
Physical: | Ø19.7mm x 66.8mm, 42g. (Built on Switchcraft AAA3MZ connector) | |
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