The H2d hydrophone is designed to offer great sensitivity and low self noise in the human auditory range while being rugged, compact and affordable. Its small, streamlined shape and high specific gravity will help maintain a low working depth in mild wind and currents. Its compact size and flexible cable make it very portable and simple to use. It is available with either XLR or 3.5mm TRS output connectors to work with nearly every recording device with a microphone input. If both output types are needed, the user can easily adapt between the two. When both output connectors are needed, we recommend using the more robust XLR connection and adapting to 3.5mm when needed.
The H2d utilizes the new CS6 signal conditioning board, which offers approximately 10dB better sensitivity and signal-to noise, as compared with the CS4 board that was included in the H2a.
H2d hydrophone with 3.5mm TRS output (H2dM)
Used with compact digital recorders and other devices with mic preamps designed for electret-condenser microphones with 3.5mm input. Plug-in power (PIP) is required and may need to be switched on in your device. Please note that adapters may be required for modern computers and that this type of connector is used line-level inputs and headphone outputs as well. Check compatibility with your device. For more information and limited specifications, see H2dM User Guide.
Features:
- Low cost
- Low self noise
- Good sensitivity
- Robust design handles accidental drops and temperature extremes
- Compact (4.5mm OD) Low-noise cable with tough urethane jacket
- Connects directly with thousands of consumer and pro audio devices
- Adapters allow use with radio, and pro audio equipment
- High-quality gold output connector
- Compact size and easy hand of cable
- High specific gravity and streamlined shape keeps hydrophone down in currents
- 1-year limited warranty
Specifications H2d Hydrophone
Sensitivity: -172dB re: 1V/µPa (+/- 4dB 20Hz-4KHz)
Useful range: <10 Hz to >100KHz (not measured above 100KHz, approximate sensitivity @100KHz = -220dB re: 1V/µPa)
Polar Response: Omnidirectional (horizontal)
Operating depth: <80 meters
Output impedance: 1.1 KΩ (typical)
Power: 0.7 mA (typical)
Minimum PIP req.: 2V, 0.7mA
Dimensions (excluding cable)
Size: 25mm x 46mm
Mass: 105 grams
Specific Gravity: 5.3
Compatibility note:
Many of the new digital recorders require that you go into the menu system and switch on plug-in power. The H2d will not work before doing this.
