El Gordo:
Both my alarm systems had speakers (or sirens, or whatever those blasted noise blasters are properly called) mounted in the attic at the gable end vents. This protected them from the elements, yet broadcast the sound outside. I have also noticed that commercial systems are invariably located on the exterior. Like Albert above, when I was burgled, the neighbors definitely heard the alarm. Alas, I lived then in the city, and no one saw anything, but they all sure told me they heard it!
chas
Both my alarm systems had speakers (or sirens, or whatever those blasted noise blasters are properly called) mounted in the attic at the gable end vents. This protected them from the elements, yet broadcast the sound outside. I have also noticed that commercial systems are invariably located on the exterior. Like Albert above, when I was burgled, the neighbors definitely heard the alarm. Alas, I lived then in the city, and no one saw anything, but they all sure told me they heard it!
chas