Hydrophone Amplifier and Listening Amplifier – type : MPA-102-MK2 with AquarianAudio hydrophone H2a-XLR

MPA102-MK2-H2R – Front panel view

Back panel view

An etec.dk modified version of the IMG MPA-102 - together with the AquarianAudio H2A-XLR hydrophone.

This phantom powered hydrophone amplifier setup is equipped with XLR connector suitable for any type of commercial recording device or mixing console. It has a high signal output capability due to a high supply voltage of 4 pcs 9 volt square batteries and there is a mixing function to connect with a monitor amplifier and a set of headphones.

The amplifier may also be powered from the included mains powered wall plug AC adaptor.

This setup is a low cost kit especially intended for underwater listening and detection of leakage in water tanks or in pipelines or other kind of audible sound information in liquids.

The MPA-102 amplifier is a stand alone unit with build in batteries and 70dB of gain. It features a 24Volt phantom power supply to drive an active hydrophone equipped with the standard 3pole XLR connector.

Frequency ranging from 10Hz to 50kHz. plus a very high gain of 70dB. Is features both high and Low pass filters for emphasizing the listening frequency range plus a build in "click" detector to detect underwater sonar sounds emitted from sea mammals. A mixing function to connect with a monitor amplifier or a set of headphones.

The click detector function is the modification of the amplifier together with an increase of the overall frequency range of the amplifier.

This unit is compatible with most any type of professional studio recording and reproduction equipment. We recommend the ZOOM type H4 handheld digital recorder to supplement this listening amplifier for recordings and documentation. This device will record the audible range 20hz to 20kHz.

For the wider bandwidth of 10Hz to 50kHz we recommend the audio interface AD converter adaptors from ZOOM. They are designed to be connected to a computer with USB interface for recording. Types in qestion could be the following units which offers up to 192khz of sampling rate

Links in question herewith :

==> ZOOM UAC-2 for Windows USB. High-Resolution, Low-Latency, Ultra-Portability
==> ZOOM TAC-2 for MAC Thunderbolt
==> ZOOM F8 for 8 channel high quality multitrack recordings
==> Aquarian H2a-XLR hydrophone

An etec.dk modified version of the IMG MPA-102 - Phantom powered hydrophone AquarianAudio H2A-XLR

Price inclusive hydrophone euro € 1.000,-

Hydrophone and Listening Amplifier with Reson TC4033 hydrophone. type : MPA102-MK2 suited for Teledyne-Reson passive hydrophone series TC4033/TC4034/TC4013

Set of Hydrophone and a Listening Amplifier

An etec.dk modified version of the IMG MPA-102 together with a Teledyne-Reson Hydrophone TC4033 or TC4034.

Text same as above exept that the hydrophone here is passive thus requires a preamplifier to convert the high impedance of the hydrophone to match the standard imput of the amplifier.
XLR Preamplifier for passive Hydrophone type number XLR4816 may be purchased separately for other purposes.

Hydrophone and Listening Amplifier with Reson TC4033 hydrophone

Price inclusive hydrophone and preamplifier euro € 2.000,