Features

The Rumbler®, intersection-clearing system, demonstrates the long-standing commitment of Federal Signal to continue as the technological leader in audible warning and operator safety. The Rumbler is particularly effective for Police and Fire/EMS applications when used in dense urban environments with heavy vehicle and pedestrian traffic. 

Improves Intersection Warning Effectiveness
The Rumbler introduces a revolutionary new concept to audible warning through its ability to interact with most 100/200-watt siren amplifiers and provide secondary, low frequency duplicate tones. Low frequency tones have the distinct advantage of penetrating solid materials allowing vehicle operators and nearby pedestrians to FEEL the sound waves.

Secondary System with Built-in Safety
The Rumbler system senses the primary siren tone signal, and reduces the signals’ frequency by 75%. It then amplifies the sound through a pair of high output woofers. The system’s timer allows the tone to sound for eight seconds, providing highly effective warning at hazardous intersections, and then automatically shuts off.

A complete Rumbler intersection-clearing system consists of an amplifier, with built-in timer and two subwoofers. Vehicle specific mounting hardware is ordered separately. This system can be paired with most 100/200-watt emergency siren amplifiers.

Specifications

Voltage 9-15 VDC
Operating Current 12A max
Polarity Negative ground only
Standby Current OmA nominal
Operating Temperature Range -30˚C to +65˚C
Frequency Ranges 182 to 400 Hz
Output Voltage 64 VDC (nominal) peak-to-peak
Output Power 80W
Dim. (H x L x D) Amplifier - 1.3 in (3.5 cm) x 6.3 in (15.6 cm) x 5.7 in (14.5 cm)
Pair of Woofers - 8.5 in (21.6 cm) x 7.3 in (18.4 cm)
Timer - 1.4 in (3.6 cm) x 6.5 in (16.5 cm) x 2.9 in (7.4 cm)
Ship Weight 19 lbs (8.62 kg) 19 lb
Warnings

Warnings

Audible Equipment may produce LOUD sounds necessary to request the right-of-way. Audible equipment may cause hearing damage. Wear hearing protection. Refer to the Installation Manual or call 800/433-9132 for further instructions.

Important Warning for Police Boats and Fire Rescue Boats

It has come to our attention that police boat and fire rescue boat sirens and speakers may subject persons operating those craft to sound pressure levels that can cause permanent hearing loss. We recommend that speakers be located as far forward on the boat as possible, as recommended in the SAE Recommended Practice J1849 "Emergency Vehicle Sirens". However, unprotected exposures of a sufficient duration to properly located siren speakers can still create a risk of hearing loss.

It is our recommendation that your siren speakers should be relocated and persons operating these craft should wear hearing protection when using the siren system.

Failure to comply with these recommendations may result in temporary or permanent hearing loss to operators and passengers of these vehicles.

Resources

Product Manuals

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