🔊 Enhanced SoundAlert 12V 100W Electric Police Air Horn Amplifier [Hands-Free] for Vehicles Truck UTV ATV Car POV with Train Truck Police Siren Horn Review

Why is it specified as 100 watts? Before installing this device in the car, I wanted to test it on the stand. Using a 14V 19A DC power source, a Federal Signal BP100 speaker, measuring an 11 ohm DC resistance from a calibrated Fluke 87V meter. After turning on the yellow wire, the AC output was 2.7A at 22.3VAC. I have won. I won't go into the formulas but you can google it but the math is 60.2 watts. What does "100 watts" really refer to?

Connecting is very easy. If you have 12v and ground you need to connect a factory wire which is the horn relay wire. Very easy. My car needed an extra relay which I wasn't aware of because my horn is ground controlled. It's an easy deal to wire an extra relay, but it would be nice to know in advance as I now have to wait 2 days for the relay. Their customer service techline was very quick to let me know and point me to what I needed so no problem.

So I drive a Ninja and that standard horn isn't something that draws the attention of idiots putting up a stop sign in front of you in a 5 hour traffic jam. I recently replaced my fairings and while I had them off I installed the horn and speaker that came with the kit. WOW. Heck, I almost went deaf testing it myself in the garage. It's loud, it draws attention. I think the horn of a fire engine. No siren, a horn. or the horn of a police car. Two brief sounds from this device immediately draw…

I ordered this 1-30-20 and it was on the bike and worked 2-1-20 until lunch. It's heavier than I expected (which is good when everything you buy today is made out of lightweight plastic), even the switch mount is of good quality. I chose Lamphus saah75 to fly the air horn on my retired FLHP. I didn't want the siren to work just the horn and this unit works great. If you want to know what it sounds like, ask an auto mechanic to honk for you. I also hooked up an old "siren" car alarm to this…

So this horn sounds great. I use it with a real 100w Federal signal speaker from an old Crown Victoria Police Cruiser and it's just as good as the horn on a Whelen, Federal or Code 9 Police Cruiser cuts off either way, the instant tug on her wheel is very satisfying. But he has a kind of internal flaw. It keeps draining my battery when the car is off, getting so hot in the process that it's impossible to touch the metal box for more than a second or risk a small burn, it's too hot to touch…