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Underwater and Bioacoustics Instrumentation & Consultation


« discontinued products « C54XR & C54XRS models

The Cetacean Research C54 series of hydrophone has been replaced by the C55 series. The following has been retained for reference. See the C55 page for details.

The Cetacean Research™ C54XR and C54XRS models are preamplified, cylindrical hydrophones designed for the detection of infrasonic, audible, and ultrasonic sounds. In addition to typical underwater use, these hydrophones can also be used for the detection of airborne and subterranean sounds and vibrations.  The C54XR and C54XRS hydrophones include an integral connector and are encapsulated in a very rugged polyurethane material. The hydrophones are not individually calibrated but calibrated frequency response measurements can be performed on request.









Linear Frequency Range [kHz] 0.016 to 50
(+2/-3dB)
122 to 250+
0.016 to 44 (+2/-3dB)
Usable Frequency Range [kHz] 0.006 to 82
(+2/-20dB)
92 to 250+
0.006 to 203 (+2/-20dB)
Transducer Sensitivity* [dB, re 1V/µPa] -200 -185
Preamplifier Gain [dB] 20 20
Effective Sensitivity* [dB, re 1V/µPa] -180 -165
Power Requirement [Vdc] 5 to 32 5 to 32
Maximum Operating Depth ** [m] 460 460
Operating Temperature Range [ºC] -40 to 60 -40 to 60
RMS Overload Acoustic Pressure [dB, re 1µPa] 184 to 201 169 to 186
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa] 58 42 (< Sea State Zero)
Output Impedance [Ohms] 2.5Ohms 2.5Ohms
Dimensions [mm] 132 L x (19 to 25) dia. 132 L x (19 to 25) dia.
Integral Connector† Subconn MCBH3MSS Subconn MCBH3MSS

*  Transducer Sensitivity + Preamplifier Gain = Effective Sensitivity.

**  1,000 meter versions are available. Append "-1k" to the model number to order a hydrophone with a depth rating >1,000 meters.

Connectors are rated to a depth of 7,000 meters; see below for mating connector and cables.



Shielded Cable Length [m]
  • mating connector molded to 15, 30, or 50 [m] shielded cable
  • other lengths available on a custom order basis
  • cable includes Integral Connector rated to a depth of 7,000 meters.
Directionality
  • omnidirectional below 10kHz;
  • very directional at high frequencies (e.g., ~15º solid angle at 200 kHz, 3dB);
  • directionality focused in a plane.
Options
  • water-resistant BNC connector on battery box
  • high-pass filter switch built into battery box
  • external power supply support
  • custom orders not listed above






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