The ETSS100E Siren Loudspeaker is used for high powered transmission of electronic siren and voice communications in vehicular applications. It is suitable for installation within lightbars, engine compartments or for mounting in front of the radiator or on the bumper of any ambulance, fire, law enforcement, utility or other public service vehicle. It is furnished with a one piece steel mounting bracket and has a field-replaceable driver-head assembly. Field terminations are via 20” (508mm) 18ga, color-coded wire leads. The leads are RED and BLACK. The RED lead is connected to the #2 positive driver terminal.