DolphinEar PRO Series
(balanced audio)

A unique “Plug and Play” hydrophone for audio professionals featuring a 600 ohm balanced output that you won’t find anywhere else! Low cost and rugged enough for field or studio.

Featuring a balanced output, these hydrophones are suitable for capturing high quality underwater sounds to depths of 100 meters.

While Low in Cost, DolphinEar Professional Hydrophones are ruggedly designed for the real world broadcast and production environment. It provides high levels of quality audio without the need for phantom power and the   problems that can cause in an aquatic environment.

DolphinEar PRO is suitable for short, medium and long term immersion applications and is available in single cable lengths to 100 meters (328 feet).

They can be frozen into ice to capture the sounds of live ice skating or sporting events; submerged in chemical laden swimming pools for added realism during swimming championships; buried in the earth; or hung in mid-ocean to monitor whale and dolphin vocalizations, fish calls, or man-made noises from boats, ships, or submarines.

DolphinEar PRO hydrophones are not limited to underwater sound applications. Use it as a geophone. Bury it in the soil to pick up distant sounds of animals, or vehicles – even footsteps. Or use it to detect sound vibrations in buildings, or windows.

DolphinEar hydrophones are used in over 70 countries by government and university researchers, zoos and aquariums, whale watch tour operators and increasingly by audio and video production houses, and broadcast organizations.

DolphinEar PRO is available off-the-shelf, fully pre-tested in the ocean environment, and ready to plug into your recording equipment the moment you remove it from the box. And, it’s ready to ship usually within 24-48 hours after receipt of your order.

All DolphinEar products come with a one year warranty including online, or E-mail technical support for the life of the product.


  • Waterproof: to 100 meters
  • Wide Frequency Response: 1-24,000 Hz
  • Balanced Output: Standard 3 pin XLR connector
  • Rugged: withstands Ocean pressures and handling abuse.
  • FREE Spectrogram software: displays, anaylzes and records sounds on your PC.


Balanced Output: 600 ohms (approx)

Frequency Range (Overall): 1 Hz – 24000 Hz   

Hydrophone Transducer Type: MPC (Piezo)  

Configuration: OmniDirectional  

Hydrophone Packaging: Rugged epoxy case,

Hydrophone Dimensions: approx. 60mm Dia x 7.5 mm Thick  

Cable Type: High Quality, Low Noise, Neoprene/PVC jacketed  – 6.4mm dia

Cable Length: 10, 20, 30 metres. optional: to 100 metres..  

Depth Rating: 100 metres

Preamp: None. Direct connection to your sound mixer, preamp, or recorder.

Output Connector: XLR 3 plug  

Power: none. Phantom power not required

In Package:

  • Hydrophone (your choice of cable length)
  • CDROM software
  • User manual

Note: Unlike our DE200 series there is no preamp or earphones included.  This hydrophone is designed to be integrated into existing sound and recording systems. Spectrogram Software is included.


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