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  • 200 W, remote amplifier siren system
  • Diagnostic feature provides system status
  • Wail, Yelp, Priority tones
  • Noise canceling microphone included
  • Remote Control Head is designed to mount flush on any flat surface
  • Backlit instrument panel for nighttime viewing
  • Easy to install and service
  • Three-year warranty

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  • Meets Class A requirements for sound output with any pair of Federal Signal 100-watt speakers.

Several Great Features, One Low Price
The PA4000 is a full-featured siren amplifier system with a remote control head that can be flush mounted to any flat surface. The design of the PA4000 siren system is ideal for use in ambulances, police cars, fire apparatus and command vehicles.

Meets Industry Specifications
Continuing the Federal Signal unmatched tradition of quality, the PA4000 incorporates the latest technology for superior reliability. This 200 W siren is engineered to meet Class A specifications and can drive two high-powered 100 W speakers. Designed for easy installation, the PA4000 consists of an amplifier unit, flush mount control head, and RJ-45 wire to connect the two components.

Diagnostic Feature
The PA4000 has a unique diagnostic feature that checks for abnormal operation of the speaker system. Two LEDs light up to indicate speaker operation during test mode. The siren emits an intermittent low-level sound picked up through the speakers and causes the LEDs to flash when the sound is successfully transmitted.

The PA4000 includes an AUX/IN feature that will place the siren in Wail mode when Manual. The AUX/OUT feature drives an external relay that may be used to control warning lights. The AIR HORN/SIREN feature is activated using a paddle switch on the control panel. Also included is HORN RING, controlled by a slide-switch and TAP II, enabling the driver to change the active siren tone via the vehicle's horn ring.


Audio Output Power 200 W
Input Voltage 11/16 Vdc
Nominal Output Voltage 62 V peak-to-peak
Standby Current 250 mA
Input Current, Operating 13 A
Operating Temp. -22˚ to +149˚ F (-30˚ to + 65˚ C)
Polarity Negative ground only
Frequency Range 725 to 1600 Hz
Physical Specifications
  Control Head Amplifier
Length 6.3 in (16.0 cm) 6.9 in (17.5 cm)
Width 2.9 in (7.4 cm) 2.9 in (7.4 cm)
Height 1.5 in (3.8 Cm 4.8 in (12.2 cm)
Ship Weight
  7.0 lb (3.2 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
PA4000200 W, flush mount control, remote amplifier