Rumbler® Low-Frequency Siren for Police Vehicles
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 signal's 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.
- Improves emergency vehicle operator safety.
- Produces penetrating/vibrating low-frequency siren sound waves.
- Interacts with most 100/200-watt emergency vehicle siren amplifiers.