The S1 hydrophone is a modified version of the AS-1 hydrophone, manufactured by Aquarian since 2013. The S1 is designed to provide stable and linear broadband response within the range of frequencies supported by the best mass-produced audio recording devices. It builds on the AS-1’s capability and convenience by supporting multiple in-built signal-conditioning options and two body styles. Integrated signal conditioning will generally improve sensitivity and lower noise, while making the hydrophone more convenient to use with standard devices.

For detailed information about S1 variants, care, and performance data, please view the S1 datasheet.

Please contact us for best pricing for orders and shipping costs at the 25+ quantity discount level, or for bulk packaging. You can read about quantity discount pricing here.

Standard Configurations:

Signal Cond. Code

For use with (additional details below)

Cable

Output

Product Code

n

Passive device. No signal conditioning. Select when the hydrophone will be used as a projector, when application-specific amplifiers are required, or when the hydrophone will be used with various types of equipment and external signal conditioning modules

CA-53

BNC

S1nB

e

Microphone preamps typically incorporated into higher-quality digital recorders, audio interfaces and mixing boards. 24 or 48-volt phantom power is required

CA-70

XLR

S1eX

f

Test and measurement equipment that offers IEPE power (proprietary terms include ICP, CCLD, and others) 24V at 4mA constant current is typical. Minimum 18V at 2mA required. Maximum of 20mA can be used for driving very long cables

CA-53

BNC

S1fB

i

Microphone preamps typically found in more compact, lower-cost recorders. Also used with adapters for smart phones, single-board computers and their daughter boards (“hats” or “shields” for Raspberry Pi or Arduino and similar), compact USB sound dongles and more.

CA53

3.5mm TRS

S1iM

Additional signal conditioning/output/cable configurations are available. For more information and options, please view the 'Parts Variants section' of the S1 datasheet, or scroll down to the 'Output Connector Options' below.

Body Style:

Standard: Smooth exterior minimises flow noise and gas bubble entrapment. Recommended for applications where the hydrophone will hang in the water from its cable.

M10: Threaded body style designed to allow mounting of the hydrophone to a panel or conduit. Nylon retaining nut and nitrile o-ring are included. Please see M10 Panel Mounting Guide. 

Be advised with the M10 option that most connectors will be larger in diameter than the mounting hole for this hydrophone. Consider the following:
 
S1n/S1f: Standard output is BNC male, which will not pass through an M10 mounting hole. If buying the M10 body option, consider ordering this hydrophone with “W” (bare wire) output option. BNC-to-terminal block adapters can be used, though we recommend using a grounded foil shield over these adapters with the use of hte S1n. When the smaller CA-80 cable is desired, order with “U” (microdot 10-32) connector and use BNC adapter if needed.
S1e: The S1e standard output is XLR male, which will not pass through an M10 mounting hole. We solve this problem by modifying the XLR connector so that the contact pins can be removed during wire routing. For additional detail, see NC3_MXX_MOD assembly notes.
S1i: The low-profile 3.5mm connector that is used on the S1i will easily pass through an M10 mounting hole. No special considerations are required.