BNC Hydrophone IEPE Preamplifier
Connect passive hydrophones to devices offering IEPE power
- Connect passive hydrophones without an integrated circuit to data acquistion systems and test equipment.
- Requires IEPE power to be provided by test equipment, or through an inline injector
- BNC to BNC inline
- Works with all Aquarian BNC output passive hydrophones (e.g. AS-1, S1n, H3n)
NOTE: This amplifier is not waterproof.
What's Included:
- IEPE1 BNC Preamplifier
We are committed to prompt service. Many standard hydrophone variants are kept in stock and often ship the next business day. Custom builds are frequently completed within one week, depending on quantity and configuration.
We ship worldwide using trusted carriers including UPS, FedEx, DHL, and USPS. Shipping rates are calculated at checkout. International customers may be responsible for import duties, taxes, or brokerage fees assessed at delivery by their country and carrier.
Transit times and customs clearance can occasionally cause delays outside our control. Customers using their own courier account, freight forwarder, or uninsured shipping methods assume additional responsibility once the shipment leaves our facility.
For complete details on shipping methods, insurance, international shipments, delays, freight forwarding, and liability terms, please see our full Shipping Policy.
- Aquarian made products are backed by a 1-year limited warranty covering defects in materials and workmanship under normal use.
- Resold products manufactured by third parties may be covered by the original manufacturer’s warranty, where applicable.
- Returns of unused, like-new products are generally accepted, subject to inspection and approval.
Please review our full policies for details on custom products, misuse conditions, returns, exclusions, and limitations.
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 Electronics Piezo-Electric power (IEPE) is a constant current that can be modulated through a coaxial cable, alleviating the need for extra power conductors and minimizing the size, bulk, and cost of cable. Proprietary names for this include ICP, CCLD and others.
A constant current of 2 to 20mA is required. 24V is the standard compliance voltage for IEPE, though this amp will work with as little as 18V at 2mA. It will also work when powered with one leg of phantom power from a microphone preamp (typically pin 2 of XLR jack).
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.
| Equivalent Input Noise | -122 dBV | 10nF input shunt, A-weighted 20Hz – 22kHz |
| Total Broadband Output Noise | -89 dBV | 10nF input shunt, Unweighted 10Hz – 90kHz |
| Bandwidth | 10Hz - 90 kHz | +0/-0.5 dB |
| 4Hz - 170 kHz | +0/-3 dB | |
| THD+N | <0.02% | @1kHz, -10dBV output |
| Max output | >5dBV RMS | @1kHz, 1% THD |
| Supply Current | 2-20mA | IEPE constant current. |
| Gain | 26dB | |
| Z in | 10 MΩ | |
| Physical | Ø19.7mm x 66.8mm, 42g. | |
Tested with 24V – 4mA constant current supply except where noted.