The airhorn sound on the EQ2 siren is awesome! It doesn't have the true stutterone, but the "bleeting" sound like you used to hear on Engine 51 on "Emergency!". The Carsons are as close as you're going to find to a true Stuttertone airhorn.
My friend Lou Farah, who's executive director of Professional Cars International, based in Burbank, CA, has a 1969 hightop Stoner/Chevy Suburban ambulance. The truck has a big B&M Super Chief siren over the cab and a real Grover Stuttertone airhorn with a very long trumpet mounted to the side of the left-front fender.
PCI has a Summer Meet combined with the American Heroes Airshow every years that features a rollin' to the rescue Code 3 parade. When I got to attend back in 2002, I got to drive that Suburban ambulance in the Code 3 run; and it was absolutely awesome getting to run "hot" on an L.A. freeway with an LAPD escort, using the big Super Chief and that awesome ear-shattering Stuttertone! :yes:
Odessa Fire/Rescue purchased three big International ambulances from Braun. These trucks have Whelen electronic sirens, a Screamin' Eagle motor siren mounted into the front bumper, and a bodacious train-type airhorn that can be heard for over a mile.....which I can attest to!