The e-Q2B® has been redesigned to incorporate 200 W Class D audio amplifier for increased reliability. In addition, external diagnostics have been added to monitor power, output voltage and current monitoring. New 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. Finally, an audio output has been added to allow the e-Q2B to work with the Federal Signal Rumbler Intersection Clearing System.
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 the operating current to 20 A and provides for a more robust, reliable system.
The push-button backlit, membrane switches and robust rubberized knob provide a 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.
The distinctive sound of the Q2B electro-mechanical siren is a registered trademark owned by Federal Signal Corporation.