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Federal Signal Rumbler - Low Frequency Speaker
The Rumbler® is a traffic-clearing system that demonstrates Federal Signal’s long-standing commitment as the technological leader in audible warning and operator safety. Rumbler police siren provides a secondary, low-frequency duplicate tone to penetrate solid materials, allowing vehicle operators and nearby pedestrians to feel the sound waves. The low-frequency emergency vehicle siren senses the primary siren tone signal and reduces the signal’s frequency by 75%. It then amplifies the sound through a pair of single high-output speakers. This cutting-edge fire truck and patrol car siren allows the tone to sound for eight seconds, provides a highly effective warning, and automatically shuts off.
- Rumbler low frequencies deliver up to 10 dB more sound pressure inside civilian vehicles near emergency vehicle — getting attention and clearing traffic more effectively than a standard siren tone
- Low-frequency tones work simultaneously with primary siren
- Produces penetrating/vibrating low-frequency sound waves
- Interacts with most 100/200 W emergency vehicle siren amplifiers
- Highly effective in dense urban environments with heavy vehicle traffic
- Rumbler low-frequency speakers work in conjunction with Federal Signal sirens that feature integrated traffic-clearing capability
- Rumbler low-frequency speakers are also available with Rumbler amplifier to work with other Federal Signal sirens
- Three-year warranty
Federal Signal’s fire truck and patrol car siren includes two new variations. The Rumbler Solo is a single speaker, allowing for easier and faster installation. The compact Rumbler low-frequency car siren has a pair of compact speakers allowing for additional mounting locations. The Rumbler siren system works in conjunction with Federal Signal sirens that feature integrated Rumbler Traffic Clearing capability. This allows the sirens to produce a Rumbler tone without the need for a separate externally mounted amplifier.
Our low-frequency emergency vehicle siren is also available with a Rumbler amplifier, providing Rumbler features to other Federal Signal sirens.
Vehicle-specific mounting hardware is available and ordered separately