LAMPHUS SoundAlert Siren & Speaker PA System [100W] [6 Modes] [Heavy Duty] [120-130dB] [Microphone] [Hands-Free] [Dual 20A Switches] Emergency Horn Sound System for Police Cars & Fire Trucks

The LAMPHUS® SoundAlert™ 100 Watt Speaker and Siren Kit comes with a universal mounting bracket making it suitable for police, fire, ambulance, volunteer, and private vehicle to use as a PA system or audio warning device. This siren and speaker set offers the essential function of different siren tones, wail, yelp, horn, Hi-Lo, Hi-Lo 2, radio broadcast, and two auxiliary switches to control other equipment on the vehicle. Pre-wired unidirection microphone with PTT (push to talk) button overrides the siren during time of usage, and hands-free operation with override from the horn ring. Constructed of heavy duty, corrosion-resistant aluminum housing, the LAMPHUS® SoundAlert™ 100 Watt Speaker and Siren Kit offers easy installation, and is made to satisfy your public addressing, equipment operating, and audio warning needs.

Interchangeable/Compatible with:
All automobiles and devices equipped with a 12 or 24 Volt DC power source.



  • 100 Watt amplifier.
  • 5 Modes.
  • 2 auxiliary switches
  • Hands-Free Operation with override from the horn ring.
  • Pre-wired push to talk microphone.


  • 120 – 130dB Sound Compression Level
  • Heavy duty, rust resistant construction.
  • Universal mounting bracket.
  • 100 Watt / 8 Ohm / 400 Hz � 4,000 Hz.

Product Content:

  • 1 x Siren Box Unit
  • 1 x Speaker Unit
  • 1 x Bail Strap Bracket
  • Mounting Accessories
  • Owner’s Manual


  • Siren Dimension:
    6″ W x 2-1/4″ H x 8″ D (15.24cm x 5.72cm x 20.32cm)
  • Speaker Dimension:
    8″ W x 4-3/4″ H x 6-1/4″ D (20.32cm x 12.07cm x 15.88cm)

1 Year Warranty

Have a Question? Call Us Toll Free 1-855-LED-ONLINE (1-855-533-6654)

Product Features

  • AUDIO CLARITY AND AUDIBILITY – With an adequate power output of 100W and powerful speakers with a rating of 120-130dB, you get quality audio output which is audible from a distance away.
  • MULTIPLE OPERATION MODES – This warning system features multiple operation options which include Horn, Radio, and Siren with the siren option giving you Yelp, Wail, Hi-Lo and Hi-Lo and also Manual Horn & Manual Siren.
  • ADDITIONAL AUXILIARY SWITCHES – The SoundAlert warning system offers two 20A switches which you can use to power other external devices and appliances.
  • EXTERNAL SOUND INPUT – Also featured in this warning system is the option to broadcast from external sources through the radio mode. You also get a push to talk microphone.
  • HANDS-FREE CONTROL – To give you easier access and control over the system, you can connect it to your car’s horn button allowing you activate the siren system with the push of a button.

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3 Responses to LAMPHUS SoundAlert Siren & Speaker PA System [100W] [6 Modes] [Heavy Duty] [120-130dB] [Microphone] [Hands-Free] [Dual 20A Switches] Emergency Horn Sound System for Police Cars & Fire Trucks

  1. Anonymous says:

    Sturdy, works well, toyish siren tones, great horn, PA and loudspeaker work great. OVERALLThe control box seems to be larger than it needs to be, causing a mounting issue. I was able to find a place, but not where I initially had hoped to mount the unit. Buttons, switches, and knobs seem very sturdy. Wiring is great – easy to hook up if you have a little experience with automotive electrical systems. The backlit selected Mode titles are a plus, but not having any other functions/switches backlit is a bit of a bummer, especially with how small the volume indicator is…

  2. Anonymous says:

    ALMOST perfect.. Recently purchased and installed the 01 and 03 versions in two vehicles for the PA function. These things are great. VERY loud. Exactly what I was looking for. I’ve heard PA systems before that weren’t half as loud as this one can get. Very powerful. Had to install the speaker inside the bumper or under the hood. Only one thing I HATE about these; when pressing the push to talk (PTT) button and releasing the button it makes a loud noise through the speaker. I understand this is common with many…

  3. Anonymous says:

    works well Though initially we received it without the schematics to install it; the seller sent them at our request and we were able to hook it up. Once hooked up, it works great. I was concerned about water, as we hooked it up to our 4 person kawasaki for our ranch; however, the speaker portion appears to be water proof. It has been completely inundated with water to no effect. We try to keep the radio dry. One time it got wet when washing the machine and it stopped working. I thought we blew the…