310 decibels was an eruption in indonesia and even people in germany etc. said they heard a sound like an gunshot 300 decibels is half of that so that would be like an nuclear explosion if they were 300 decibels
If you test the horns on a car battery, they will work just fine and very loud. What you called a amplifier is a battery charger and cannot be used without a 12 volts battery for testing anything!
The reason why is because your little amplifier is putting out maybe 2 to 3 A a car horn system puts out anywhere from 15 to 40 A that’s why the horn sound like that. Put them on your car and try them out they’ll sound 1000 times better.
Most cheap inverters are not filtered. That unit is only 2 amps and probably has between 6-8v of AC ripple in it. I hope he tried hooking them up to a battery before he put them in the trash or sent them back.
Those are just some regular very cheap car horns and train horns are powered by air and bigger and more expensive and 300db is hearing loss and really expensive train horns are not 300db
They’re designed to work TOGETHER. There should be a high and low side. That black screw is to tune it. Twist it until you get the sound you’re after. Also there supposed to be hooked DIRECTLY to a battery and into a charger or whatever you had.
You notice how the horn faintly starts to work when he goes to disconnect the positive, and gets quieter the longer they are connected? That's because they require more amperage than a trickle charger can supply. Hook them up to a battery and they'll go. It's like hooking a big speaker direct to a headphone jack. It's just not enough power to get the diaphragm to oscillate, and all you are really hearing is the coil winding trying to move the diaphragm without the power to do so.
Haha, nothing defective about the horns it's the person trying to sound them with a 2 amp battery charger that's defective. You need 20-30 amps to make them work.
It's 120hz, one octave higher than 60hz (power supply frequency in US 60hz) because the horn is on and off, doubling the freq to 120hz. They will work with a steady DC voltage.
You are meant to adjust the volume of the horns once they are wired up.... see the black plastic cap above the positive and negative terminals... take the black cap off and adjust it with a screw driver to increase the volume
Those horns needs 24 voltage it’s suitable for Trucks and six wheelers cars and buses and trailers only and wont work with small vehicles even with relay switch because the horn power is 24 Volts
Your using a battery charger to run car horns. Use a battery and it will work. Theres simply not enough amperage coming out of that thing to run those.
You said it, McKelvey. "My little amplifier" is much too weak to operate car horns correctly. Car horns usually operate on seven amp's and upwards. You fed them two. I think that's a do-over.
@@hemiv8949I hope you are joking!!! The fuse is designed to fail before the cable fails. Upgrade the fuse and your wires become the fuse, or the device burns out.
300dB is impossible, its just marketing. But the reason they don't work is because your power supply cant output enough current. Plug them into a 12V battery and they will work.
They have to be grounded bro. The mounting screw right there in the middle ground it and hold your ears Edit.... They have to be grounded trust me I've been through this. I read your comments and everybody seems to think the volts make that much of a difference it doesn't if they are 12v then 9v to 12v will blast them once installed properly
Well firstly, it ain't an amplifier, it's a power supply. Secondly, it is quite likely unregulated or is outputing AC (alternating current, not air conditioner) when you need DC (direct current). Or it is just not enough current (amperage) to get the coil inside working properly. Try it on a 12v car battery and see if they operate. If not, then they are just crap from china.
Amplifier???? What the frack are you talking about? Looks like a car battery charger to me. You hook up your 50W headlights to that too and tell people they're defective?
to clarify, the loudest possible "sound" would be about 190db at standard atmospheric pressure because there would be a perfect vacuum between waves, and 190db alone is over 5 million times the magnitude in sound of a jet engine The pressure within the most extreme part of a 300db sound wave would be something like 20 million gigapascals, or nearly 3 trillion PSI, which is 26,000 times higher than the highest PSI ever generated by mankind The pressure at earth's core is about 52 million PSI
