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Georgia State Patrol Rumbler Siren (Whelen Cencom Sapphire Rumbler)

You know what light mod this is?

nvm

i cant hear it, anything else i need to do?

@Fabian well the Rumbler/Howler isn't a separate siren. It's a feature of siren control boxes and speakers that adds base to the regular tone so that drivers with insulated cars and loud music will both feel and hear them coming. Usually at least on Federal Signal boxes, there's a button that toggles between rumbler and no rumbler. Some departments asked for their boxes to be set up so that pressing the horn ring on the wheel activates rumbler for intersection clearing. Not sure how Whelen boxes activate Howler which is Whelen's version of the Rumbler

it interesting to see the didfferent sirens

They actually also used to use a Mastercom B siren but that's on older vehicles and is pretty rare to see these days.

did not knew georgia has 2 siren versions