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{{Short description|Electronic outdoor warning siren}}
{{Short description|Electronic outdoor warning siren}}{{More citations needed|date=July 2026}}[[File:1 Tsunamiwarnsystem in Dili.jpg|thumb|ATI in service]]
{{Copy edit|for=poor grammar, strange tone|date=July 2026}}
In [[civil defense siren]]s, the ATI '''High-Power Speaker Station''' (<!--"Soundblaster"-->'''HPSS'''),<ref>{{Cite web |title=High Powered Speaker Station |url=https://www.atisystems.com/wp-content/uploads/2020/07/Spec-HPSS.pdf |website=www.atisystems.com}}</ref> known as the '''ASC E-Class''', is an electronic outdoor warning [[siren (alarm)|siren]] manufactured by Acoustic Technology, Inc (ATI) that is used to alert citizens of [[airstrike|air raid]]s and [[natural disaster]]s.
[[File:1 Tsunamiwarnsystem in Dili.jpg|thumb|ATI in service]]
In [[civil defense siren]]s, the ATI '''High-Power Speaker Station''' (<!--"Soundblaster"-->'''HPSS'''),<ref>{{Cite web |title=High Powered Speaker Station |url=https://www.atisystems.com/wp-content/uploads/2020/07/Spec-HPSS.pdf |website=www.atisystems.com}}</ref> by [[American Signal Corporation]] (ASC) known as the '''ASC E-Class''', is an electronic outdoor warning [[siren (alarm)|siren]] manufactured by Acoustic Technology, Inc (ATI) that is used to alert citizens of [[airstrike|air raid]]s and [[natural disaster]]s.


==Systems==
==Systems==
The recent HPSS systems use high-powered electronic speakers, which can be independently arranged to provide directional or omnidirectional coverage, depending on installation. The HPSS16 have four speakers, and the  HPSS32 have eight speakers. They can also be used as public announcement ([[PA system|PA]]) systems and can play a number of programmed tones. Options include solar-powered operation pre-recorded voice messages. ATI also sold rotating units of the HPSS16, and HPSS32, called the "HPSS16R" and "HPSS32R", that are now discontinued.
HPSS systems use high-powered electronic speakers, which can be independently arranged to provide directional or omnidirectional coverage. The HPSS16 has four speakers, while the  HPSS32 has eight speakers. They can be used as public address ([[PA system|PA]]) systems and can play programmed tones. Options include solar-powered operation and pre-recorded voice messages.
[[File:HPSS16 at 3rd and Harrison streets in San Francisco.jpg|thumb|ATI HPSS16]]
[[File:HPSS16 at 3rd and Harrison streets in San Francisco.jpg|thumb|ATI HPSS16]]


==Areas known to use HPSS systems==
==Customers==
* [[San Francisco, California]] - This system is unique because it features the sound of the decommissioned [[Federal Signal]] STL-10 sirens that the HPSS units replaced
* [[San Francisco, California]] - Features the sound of the decommissioned [[Federal Signal]] STL-10 sirens that it replaced
* [[Casitas Dam]], [[Ventura, California]] - This system is unique as they look like the Federal Signal Directional Speaker Array (DSA) sirens, but can have 7–8 speakers per stack, and gray caps on the speaker cones.
* [[Casitas Dam]], [[Ventura, California]] - Looks like Federal Signal Directional Speaker Array (DSA) sirens, but can have 7–8 speakers per stack, and gray caps on the speaker cones.
* [[Indian Point Energy Center]], [[New York (state)|New York]]
* [[Indian Point Energy Center]], [[New York (state)|New York]]
* [[Owasso, Oklahoma]] had 16 ATI HPSS-32 sirens that were installed more than 20 years ago. In December 2023, all 16 HPSS-32 sirens were replaced with Whelen WPS-2910 omnidirectional sirens, and a 17th Whelen was installed near Stone Canyon Elementary.
* [[Israel]] has 300 HPSS systems as a part of its warning system.
* [[Israel]] has 3,100 sirens as a part of its warning system, and 300 of them are HPSS32 sirens.
* [[Sedgwick County, Kansas]] and the City of Wichita use 27 ATI HPSS32 units.
* [[Sedgwick County, Kansas]] and the City of Wichita 27 ATI HPSS32 units are part of the system's 150 sirens.
* [[Forsyth County, Georgia]] has mostly ATI HPSS16r and ATI HPSS32 systems.
* [[Forsyth County, Georgia]] has mostly ATI hpss16r plus in 2012 added ATI HPSS32 this system back in 2008 replaced some Whelen 28X9 plus in 2022 they added more ATI HPSS-32's.
* [[Allen, Texas]] has 26 ATI HPSS-32 units.
* [[Norcross, Georgia]] has 10 ATI HPSS 16s that replaced Whelen 2805's, 2905's and one 2804. All were directly replaced in 2022.
* [[Fort Riley, Kansas]] has 2 ATI HPSS-16 units.
* [[Allen, Texas]] with 26 ATI HPSS-32 units.
* [[Del City, Oklahoma]] has 8 ATI HPSS-16 units.
* [[Fort Riley, Kansas]] with 2 ATI HPSS-16 units.
* [[Malmstrom AFB, MT]] has 6 ATI HPSS-16 units.
* [[Del City, Oklahoma]] with 8 ATI HPSS-16 units.
* [[Malmstrom AFB, MT]] with 6 ATI HPSS-16 units.  
* [[Pasig]], [[Philippines]] has 3 ATI HPSS-32 units.
* [[Pasig]], [[Philippines]] has 3 ATI HPSS-32 units.
* [[Davao City|Davao City, Philippines]] has at least 11 ATI HPSS-32 sirens around the city.  
* [[Davao City|Davao City, Philippines]] has at least 11 ATI HPSS-32 units.
* [[Battle Creek, Michigan]] has four rotating ATI HPSS-16R units. They run 575[[Hertz|Hz]]&nbsp;alert for tornado warnings.
* [[Battle Creek, Michigan]] has four rotating ATI HPSS-16R units.  
* [[Menominee, Michigan]] has three rotating ATI HPSS-32R units
* [[Menominee, Michigan]] has three rotating ATI HPSS-32R units
* [[Pensacola NAS]], [[Florida]], ATI HPSS-16 (mostly), the sirens on Pensacola's Navy base are mostly used for tornado warnings and they play the colors in the morning and evening. When a warning is issued, these siren sound ATI's version of wail signal during tornado warnings. Attack signal or other signals have not been used yet. These siren are silently tested on Fridays.
* [[Pensacola NAS]], [[Florida]], ATI HPSS-16 (mostly) mostly used for tornado warnings and play the colors
* [[University of West Florida]] In [[Pensacola, Florida]], ATI HPSS-16 sirens here are used for chemical spills, weather warnings, lock downs, and they play the [[Westminster Quarters|Westminster Chimes]] every day at noon.
* [[University of West Florida]] In [[Pensacola, Florida]], ATI HPSS-16 sirens here are used for chemical spills, weather warnings, lock downs, and they play the [[Westminster Quarters|Westminster Chimes]].
* [[Arnold, Missouri]] 7 ATI HPSS-32 units which replace the old Whelen WPS 3016 Sirens.<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=5YAnYjdAmq8 |title=Arnold, MO ATI Tornado Siren Test |date=2008-10-26 |last=CrazySirenBoy |access-date=2025-07-22 |via=YouTube}}</ref>
* [[Arnold, Missouri]] 7 ATI HPSS-32 units.<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=5YAnYjdAmq8 |title=Arnold, MO ATI Tornado Siren Test |date=2008-10-26 |last=CrazySirenBoy |access-date=2025-07-22 |via=YouTube}}</ref>
* [[Ketchikan, Alaska]] maintains a system of 3 ATI HPSS-32 units which are tested audibly on the 15th of the month at noon. These sirens are used to warn for tsunamis or in the event of a dam failure.<ref>{{Cite web|url=https://www.krbd.org/2015/08/26/third-siren-added-to-citys-hazard-warning-system/|title=Third siren added to city's hazard warning system|date=26 August 2015}}</ref><ref>{{Cite web|url=https://sites.google.com/site/greaterketchikanarealepc/all-hazard-siren-information|title = Google Sites}}</ref>
* [[Ketchikan, Alaska]] maintains a system of 3 ATI HPSS-32 units.<ref>{{Cite web|url=https://www.krbd.org/2015/08/26/third-siren-added-to-citys-hazard-warning-system/|title=Third siren added to city's hazard warning system|date=26 August 2015}}</ref><ref>{{Cite web|url=https://sites.google.com/site/greaterketchikanarealepc/all-hazard-siren-information|title = Google Sites}}</ref>
* [[Hudson County, New Jersey]] has an unknown number of HPSS sirens. They are supposedly used for nuclear emergencies.*
* [[Hudson County, New Jersey]] has an unknown number of HPSS sirens.  
* [[Antofagasta|Chile, Antofagasta]] has also an unknown number of HPSS-32 sirens. They are used to warn about tsunamis and fires.
* [[Antofagasta|Chile, Antofagasta]] has an unknown number of HPSS-32 sirens.  
* [[Sarnia, Ontario]] and the surrounding communities use a system of 22 ATI HPSS-32 units to warn of chemical plant spills and accidents, as well as severe weather. They are tested every Monday at 12:30PM. These replaced an older system of ACA Alertronic AL-6000R sirens.
* [[Sarnia, Ontario]] and the surrounding communities use a system of 22 ATI HPSS-32 units.
* [[Bandon, Oregon]] use 4 ATI HPSS-32's. They test every first Wednesday of the month at noon. These sirens are used to alert people of tsunamis. One of these ATIs replaced a [[Federal Signal]] Model 5.
* [[Bandon, Oregon]] use 4 ATI HPSS-32's.  
* [[Palo Verde Nuclear Generating Station]], [[Wintersburg, Arizona]] use over 70 HPSS-32 sirens to warn the area in the event of a radiation release. Sirens are tested once a year in late November or early December.
* [[Palo Verde Nuclear Generating Station]], [[Wintersburg, Arizona]] use over 70 HPSS-32 sirens.
* [[Cannon Beach, Oregon]] [[Arch Cape, Oregon]] Has a system of 6 HPSS-32 sirens to alert the residents of a tsunami or more, replaced an older system of Whelen sirens of many kinds that played the sound of a cow mooing and a voice message for tests, new ATI system test with a hi-lo signal with a voice and mooing cow at the end. Tests every first Wednesday at noon.
* [[Cannon Beach, Oregon]] [[Arch Cape, Oregon]] has 6 HPSS-32 sirens  


==References==
==References==

Revision as of 02:03, 9 July 2026

Template:Short descriptionTemplate:More citations needed

ATI in service

In civil defense sirens, the ATI High-Power Speaker Station (HPSS),[1] known as the ASC E-Class, is an electronic outdoor warning siren manufactured by Acoustic Technology, Inc (ATI) that is used to alert citizens of air raids and natural disasters.

Systems

HPSS systems use high-powered electronic speakers, which can be independently arranged to provide directional or omnidirectional coverage. The HPSS16 has four speakers, while the HPSS32 has eight speakers. They can be used as public address (PA) systems and can play programmed tones. Options include solar-powered operation and pre-recorded voice messages.

ATI HPSS16

Customers

References

  1. ↑ "High Powered Speaker Station". https://www.atisystems.com/wp-content/uploads/2020/07/Spec-HPSS.pdf. 
  2. ↑ Template:Cite AV media
  3. ↑ "Third siren added to city's hazard warning system". 26 August 2015. https://www.krbd.org/2015/08/26/third-siren-added-to-citys-hazard-warning-system/. 
  4. ↑ "Google Sites". https://sites.google.com/site/greaterketchikanarealepc/all-hazard-siren-information. 

Template:Civil defense sirens

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