e-Q2B Electric Siren

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  • 200 W power with lower Amp draw — 22 A or 100 W
  • Available with flush mount or surface mount control head
  • Compatible with Rumbler® Traffic Clearing System
  • Easy-to-read external diagnostics
  • Keypad features backlit membrane switches with tactile feel
  • Traditional and trademarked Q-Siren® sound
  • Works with FS Convergence Network
  • Removable microphone
  • Auto, manual and brake capabilities
  • Features Q-WAIL, YELP, Priority, Air Horn, PA, Radio Rebroadcast and Horn Ring Transfer
  • Foot switch inputs
  • Three-year warranty



  • SAE J1849

Completely Redesigned
The e-Q2B® includes 200 W Class D audio amplifier for increased reliability and external diagnostics to monitor power, output voltage and current monitoring. Features include park kill input, which immediately shuts off the siren when vehicle is in park and horn ring input which allows the user to cycle through siren tones. The e-Q2B also has an audio output to work with the Federal Signal Rumbler Traffic Clearing System.

Improved Amplifier
Using DSP circuitry, the e-Q2B amplifier is able to accurately reproduce the  trademarked “Q” wail rather than relying on a simple digital recording. DSP also enables the product to function either manually or automatically for hands-free operations (Horn Ring Transfer). The new Class D engineered system reduces operating current to 20 A and provides for a more robust, reliable system.

Improved Keypad
The push-button backlit, membrane switches and robust rubberized knob provide tactile feel to easily activate siren tones, air horn, PA and radio rebroadcast. In addition, the detachable push-to-talk microphone can be easily removed and replaced with customized plug. Volume control for microphone is located directly on the keypad for added convenience.

Optional Siren Control
Three external inputs allow for the use of externally configured foot switches to control manual wail, brake and air horn.

Registered Trademark
The distinctive sound of the Q2B electro-mechanical siren is a registered trademark owned by Federal Signal Corporation.


Audio Output power 200 W
Input Voltage 11/16 Vdc
Nominal Output Voltage 33 Vrms
Standby Current <0.5 A
Input Current, Operating 20 A
Operating Temp. -40˚ to +149˚ F (-40˚ to +65˚C)
Polarity Negative ground only
Physical Specifications (Light Head)
  Siren Amplifier Control Head
Length 8.19 in (20.8 cm) 6.8 in (17.27 cm)
Width 7.66 in (19.44 cm) 1.18 in (3.0 cm)
Height 3.91 in (9.93 cm) 3.25 in (8.3 cm)
Ship Weight
  13.0 lb (6.1 kg)



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.

Ordering Info

Model Types
EQ2B-200200 W, remote amplifier, surface mount control head
EQ2B-200FM200 W, remote amplifier, flush mount control head
EQ2B-100100 W, remote amplifier, surface mount control head
Z8616026BControl head, EQ2B-200, surface mount
Z8616042BControl head, EQ2B-200, Flush mount
Z8616033BAmplifier, EQ2B-200 or EQ2B-200FM
Z140417A-04Connector, male plug, 4-position, EQ2B
Replacement Parts