Various configurations allow for a uniquely high-powered frequency range
![Chart hydroacoustic frequencies Chart hydroacoustic frequencies](https://www.hydroacousticsinc.com/wp-content/uploads/2022/09/hydroacoustic-hlf2-hlf3-hvlf-chart.png)
For decades, our transducers have been used around the world for scientific and industrial studies. These flagship systems have an impressive 40+ dB of dynamic range and some produce output as high as 202 SPL.
Our legacy HLF and HVLF systems have been used in the Americas, Asia, Australia, and Europe for various experiments and naval missions.
HLF-1
![HLF-1 Hydroacoustic technology](https://www.hydroacousticsinc.com/wp-content/uploads/2022/09/hlf-1.png)
HLF-2
![HLF-2 Hydroacoustic technology](https://www.hydroacousticsinc.com/wp-content/uploads/2022/09/hlf-2.png)
HLF-3
![HLF-3 Hydroacoustic technology](https://www.hydroacousticsinc.com/wp-content/uploads/2022/09/hlf-3.png)
![297+-+NUSL+LF+Source+Tests](https://www.hydroacousticsinc.com/wp-content/uploads/2022/07/297-NUSLLFSourceTests.png)