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-Watt siren is engineered to meet Class A specifications and can drive two high-powered 100-Watt 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 that is 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 in 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, which enables the driver to change the active siren tone via the vehicles horn ring.


Approval Meets Class A requirements for sound output with any pair of 100W Federal Signal speakers
Input Voltage 11-16 VDC
Power 200W
Operating Current 7/13A
Standby Current 150 mA
Voltage 62 V peak to peak
Cycle Rate Wail- 14 cycles/min
Yelp- 180 cycles/min
Voltage Output 62 V peak-to-peak (approx.)
Audio Frequency Range 300 Hz to 3000 Hz
Operating Temperature -30˚ to 65˚C
Dim. (H x L x D) Control Head- 2.9 in (7.4 cm) x 6.3 in (16 cm) x 1.5 in (3.8 cm)
Amplifier- 2.9 in (7.4 cm) x 6.9 in (17.5 cm) x 4.8 in (12.2 cm)
Shipping Weight 7 lb


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 Information

Model Types
Model Description
PA4000 200 W, flush mount control, remote amplifier
Replacement Parts
Description Part Number
CABLE ASSY,PA4000 Z1461029A