This reminded me of the Chrysler-powered air raid sirens. When Chrysler engineers set their minds to something it was usually no holds barred; powered by first gen hemis. It is still the loudest such device ever produced at 138 dB at 100 ft.
That's even louder than an Amber alert at 2 am. The Chrysler Air Raid Siren Was So Powerful it Could Induce Rain | Amusing Planet