100 Watt Public Address with Sirens


26 reviews

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Almost as popular as our train horn kits, our 100 Watt Public Address with Siren is a great accessory for any vehicle and a fantastic complement for any of our horn kits. Make sure you are heard loud and clear with 100 Watts of power blasting your voice or waking the neighborhood with the built-in selection of popular sirens. If that wasn’t obnoxious enough, hook it up to the built-in auxiliary cord to ensure everyone can hear your favorite Taylor Swift song whether they want to or not!  

Our 100 Watt Public Address with Siren is intended for offroad use only. DO NOT use this product to impersonate law enforcement, or other government agency, vehicle, person, or device. HornBlasters, Inc. holds no responsibility for your actions, nor the consequences of your actions when using this product.


Here's a customer video showing off the sirens and public address. The video was taken from about 20ft away.

  • 100 Watts of Powerful Performance!
  • Now Features a New Auxillary Port 
  • Wail, Yelp, Hi-Lo Sirens
  • Horns & Public Address
  • HornBlasters 100 Watt Public Address
  • HornBlasters 100 Watt Speaker
  • Detailed Instructions
  • Mounting Bracket & Hardware
  • Wiring Harness
  • Part: HornBlasters 100 Watt Public Address
  • Part Number: PA-100H
  • Power Consumption: 100 Watts
  • Speaker Amperage: 8 ohms
  • Amplifier Length: 7.50 inch (190.5 mm)
  • Amplifier Width: 6.00 inch (152.4 mm)
  • Amplifier Height: 2.25 inch (57.2 mm)
  • Amplifier Weight: 3.680 lb (1.67 Kg)
  • Speaker Length: 5.25 inch (133.4 mm)
  • Speaker Width: 5.25 inch (133.4 mm)
  • Speaker Height: 2.25 inch (57.2 mm)
  • Speaker Weight: 5.790 lb (2.63 Kg)
  • Money-Back Guarantee/Refund Policy
    All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform HornBlasters.com of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by our One-Year Manufacturer's Defect Warranty!
  • HornBlasters.com Satisfaction Guarantee
    HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments
    HornBlasters.com will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at HornBlasters.com will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.

Warnings & Notices

Hearing Protection Required

This product produces extreme loudness. Proper hearing protection must be worn at all times during its operation. Hearing loss or permanent damage may result from unsafe use. Use this product in a safe and responsible manner and at a distance of at least 100 meters from others. Never operate this product in a closed environment, in close proximity to living beings, or where prohibited by law.

Safety warning icon

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Customer Reviews

5.0 Based on 26 Reviews
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Filter Reviews:
Carlos V.
United States United States

Very excellent service

They got me everything I needed and were very happy to help.

HornBlasters 100 Watt Public Address with Sirens Review
Matthew E.
United States United States

Love this product

Extremely loud and very good quality. well worth the money

Robert H.
United States United States

Fun to use

It’s nice and loud just wish it more sounds. Pretty sure I can get in trouble for using the sirens

Lynne S.
United States United States

Blowing MY horn!

The best. It arrives super fast. My son wanted it installed before Xmas to show kids at school. The installation was a little tight but did work out. It is loud, abnoxious; everything he hoped and more. Thanks!!

Adam F.
United States United States

Worth every penny!

I recently installed this in my 2001 Subaru Outback(It also has Conductors special Train Horns installed). I bought a cheap PA system at Advanced Auto Parts before getting this one, that system lasted about 2 days in the car(speaker was junk, microphone was cheap af) So I figured HornBlasters did pretty good on my Train Horns why not try this out. OMG, this is the best PA system you can buy! Speaker is super loud, Mic is durable af and can pick up my voice clearly. HornBlasters lived up to their name! Absolutely love them. You guys have a customer for life!

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