To pin point the sound so intense at a subject as seen on the Military channel a few months ago I dont think ear plugs would help,the guy being the test dummy had his fingers in his ears and he still was in a lot of pain from the source.They didnt play music just sent out different tones which were very painful.
Interesting. I wonder how effective the system is once the target ducks behind cover such as a car, wall or rubber tire barricade?
I suspect the pirates will try to counter these devices by installing accoustically protected fixed firing positions on their boats.