AtlasSound.com
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AtlasSound.com
Standard & High-Power Siren Loudspeaker Assemblies
HPG-100N Atlas Sound siren loudspeaker HPG-100N is a reflex-type loudspeaker with a rectangular molded bell. It
is rated at 100 watts RMS in electronic siren use. HPG-100N provides optimum sound level output of 120 dBA (mea-
sured at 1600 Hz, rated power, 3 meters on axis) and features a directed dispersion range of 80˚ x 105˚ (1 kHz octave
band) to assure high-intensity acoustic penetration for electronic siren signals. Unit contains the patented Atlas Sound
AS-100N compression driver complete with a non-fatiguing, self-aligning sound chamber assembly. These drivers
have earned acceptance as the quality and performance standard for 100 watt electronic signal systems in police, fire,
ambulance, and utility vehicles throughout the world. A heavy-duty, one piece steel mounting bracket permits full-axis
orientation of the loudspeaker for preferred sound-projection directivity. The projector assembly is manufactured of
plastic and finished in black. The driver is finished in black baked epoxy for optimum durability and corrosion protec-
tion. Units are shipped complete with all components and installation data for field installation. Replacement head
assembly (Model K-100N) or driver assembly (Model AS-100N) are available for field replacement.
Model Description Power
Rating
Dispersion** Sound Level
Peak (dBA)
Finish
HPG-100N
Rectangular
Molded Bell
100 watts* 80˚ H x 105˚ V 110 dB***
120 dB****
Black Bell
Black Driver
* 33V into 11 Ω = 100 watts
** 1 kHz octave band, -6 dB points
*** Measured 1 W / 1 M
**** Measured at 1600 Hz, rated power, 3 meters
Compression Drivers for Electronic Siren Application
AS Series heavy-duty weatherproof compression drivers are recommended for application in stationary and mobile
public address systems, emergency and law enforcement vehicles of all types. Driver is equipped with a 2
3
⁄4" voice
coil having a nominal impedance of 11 Ω at rated power. Non-fatiguing phenolic diaphragm is a formed, self-aligning
assembly capable of field replacement. AS-100N is a 100 watt driver designed for high-powered signaling applica-
tions. It features a non-fatiguing, self-aligning sound chamber assembly and is a standard component of the popular
HPG Series siren loudspeaker assemblies unit and will accommodate any horn or reflex projector equipped with stan-
dard 1
3
⁄8"-18 thread. AS-100N is finished in black baked epoxy. Product series is suitable for use with matched control
equipment for siren systems requiring ƒ AMECA (formerly AAMVA) certification to General Services Administration
specification (KKK-A-1822C) or Article 8, Title 13 of the Cal. Admin. Code.
ƒ AMECA (Automotive Manufacturers Equipment Compliance Agency, Inc.)
Model Power
Rating
Impedance Plane Wave
Freq. Response
Low Freq. Limit @
Full Power
Sound
Level***
AS-100N 100 watts** 11 Ω (nominal) 100 Hz – 2.5 kHz (±5 dB) 400 Hz 117 dBa
* 25V into 11 Ω = 58 watts
** 33V into 11
Ω = 100 watts
*** Measured on a plane wave tube at 1 mW
Reflex Tip Assemblies, Bells, Adapters & Replacement Kits
Atlas Sound offers the following genuine replacement parts to service and maintain the performance of siren
loudspeakers.
Model Description Size Mounts
EST-510
Tip Assembly-Gray
3
1
⁄4" Length AS-100N
EST-527
Tip Assembly-Gray
5
1
⁄4" Length
ESB-974
Loudspeaker Bell-Gray 5
1
⁄2" Diameter x 3" Depth
K-100N
Replacement Head Assembly
— HPG100N
AS100N
YDA-TH
Dual Driver Adapter 1
3
⁄8"-18F, 1
3
⁄8"-18M thread —
Electronic Siren Loudspeakers & Replacement Kits
AS-100N
HPG-100N
EST-527
EST-510
K-100N
K-70GB
YDA-TH
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