Sat Jul 15, 2006 8:24 am
I have heard recordings of sirens in Israel and there seem to be a variety of types used. Some sound like the E-57, with 9 and 10-port variations. Others are much lower in pitch, like an STL-10 being run on 50 Hz. or a Model 2 running on 120 volts. These low-pitched sirens are slow-moving and very impressive. It is unfortunate that they are having to use them, though.