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
• Enabled via any emergency vehicle steering
wheel horn ring
• Eight-second safety timer provides automatic
tone shutdown
• Highly effective in dense urban environments
with heavy vehicle traffic
• Rumbler low frequency speakers work in
conjunction with Federal Signal sirens that
feature integrated Rumbler Traffic Clearing
capability
• Rumbler low frequency speakers are also
available with Rumbler amplifier to work with
other Federal Signal sirens
• Vehicle specific mounting brackets available,
sold separately
• Three-year warranty
