ASF-2 MKII – Hydrophon

Das kompakte Ambient-Hydrophon


The ASF-2 MKII Hydrophone is affordable, easy to use – and simply a great sounding hydrophone. Designed with key components used in the renowned ASF-1 MKII, the ASF-2 MKII effectively utilizes the same professional hydrophone technology for outstanding underwater audio capture.
With a frequency range of 70Hz-20kHz, we designed a microphone able to capture a perfect spectrum of sounds while effectively avoiding low frequency noise created by cable handling.

Designed to withstand roughest conditions

The housing is machined out of high-quality aluminum with an anodized exterior for protection against the corrosive nature of seawater, while the 10m polyurethane cable is cast into the housing for a water-tight seal. These design attributes enable the ASF-2 MKII Hydrophone to easily withstand the roughest field conditions. In addition to being an affordable hydrophone, the ground-breaking design of the ASF-2 MKII is makes it affordable to operate as it is compatible with standard professional audio equipment.
Terminated with an XLR connector and powered by 48V Phantom, this plug-and-play hydrophone is designed for use with today’s professional field mixers and recorders for outstanding underwater recordings.

Never before has professional underwater audio capture been so affordable.


Technical Details
Linear Frequency Range 70Hz-20kHz
Max THD 0,1% (70Hz-20kHz)
Polar Pattern omni directional
Power Consumption 5mA
Power Supply 48V Ph
(L / W / H) 47 x 30 x 30 mm (without cable)
Weight 50g (without cable)
Maximum Depths 30m
Material Anodized seawater resistant Aluminum
Capsule Material Special formulated NBR