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Copyright 1999-2007

All information and photographs on
this site are the property of
Marschall Acoustics Instruments 
Pty. Limited, Australia


MAI staff designed the IHDA (Improved High-Frequency Directive Array) for the David Taylor Research Center used for the acceptance testing of the Seawolf-class submarines.




The IHDA is a constant beamwidth measuring array with over 140dB of spectral dynamic range.

IHDA Measurement Array







MAI has extensive Finite Element Modelling (FEM) capabilities to design and modify sonar transducers, handling equipment, and hydrodynamic housings.



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