The 300db train horns from China.

[@Birb_of_Judge]

300dD would probably be a LOT more than fatal levels of noise and just pure air movement

[@goyras2897]

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

[@baberhamlincoln4274]

tf are u all talking about the max is 194 decibels

[@goyras2897]

@@baberhamlincoln4274 it becomes a shockwave after that its not max for sound waves but for hearing

[@snowwatermelon3103]

@@baberhamlincoln4274 talking about things your smoothbrain can't process

[@moonchild2213]

We had a LRAD system in the Navy that was Loud AF and only around 160db...marketing at 300db means you have been scammed.

[@RawTopShot]

There's no cure for dumb

[@gasmanrus]

Please don’t tell me your power supply was a battery charger.

[@turbojawa]

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!

[@darkchild256]

Your amplifier is not providing enough current. You need between 12 and 30 amps at 12v

[@Bruce147]

They rate these at 5A. Your power supply is not putting out enough amps.

[@rickgallegos6530]

Use a battery dumb ass. The initial amperage draw far exceeds its amp rating. A power supply is not the way to go.

[@mikemoyercell]

exactly. try them with a car battery, then they will work.@@Bruce147

[@BradMillsXRP]

He said he had 12 V so it’s not the amplifier. If the problem was in the amplifier, he would not have 12 V.

[@BradMillsXRP]

Amperage is a byproduct of applying voltage to a certain amount of resistance.

[@blakes8901]

300db is literally Krakatoa level earth shatteringly loud. You can look it up if you want

[@blakes8901]

The shockwave produced would literally circle the world multiple times

[@danielshim7550]

300 db was only achieved by a volcano on the the island of Karaktoa in 1883. It was actually 310 db. You would be dead if you heard it.

[@neoladams8519]

🤣👂⚰

[@NotScammerEE]

He gott scammed if its from china

[@erickstanford519]

​@@NotScammerEEi bought some off tic tok, looks just like them. My regular goldwing horns definitely were louder.

[@serranopeppers]

So this old man died after how sad

[@PeterChamor4]

nah we good

[@Convolutedtubules]

Amp it up You got to amp it up Don't you know, amp it up You got to amp it up

[@TurnYPK]

Yea gotta amp it up lol

[@ohjesushesaiditagain.6748]

Turn the output up with pliers. The black knob.

[@MikesManCave]

He's using a 2 amp battery charger, no amount of turning knobs is going to give the horns the 30 amps required to make them work properly.

[@birwin2564]

12v but only 2 amps. They need more current.

[@maxpower9848]

You can buy mine if you like.

[@wildberrytalon]

Can't test email like that.

[@SumProject18]

Huh?

[@KntJoshua]

I have one of these and it works with a plane battery 1300mah

[@bennylloyd-willner9667]

@@KntJoshua that's capacity over time: 1,3 Amps for 1 hour, it can probably output much more under a short period.

[@mack3379]

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.

[@jackfille3910]

300 decibels isn't even physically possible, you might have gotten scammed

[@pointcrowscreepyuncle]

No it is the krakatoa eruption was 300 decibels but to put that into perspective people had their eardrums blown out from 40km

[@liqht_star96]

@@pointcrowscreepyuncle it was 310

[@obewan346]

I purchased one exactly the same as these but I used a cordless drill battery and it worked perfectly 👌🏻 👍🏻

[@audinos1840]

Sounds like you’re running AC through the horns. 300db would be heard thousands of miles away.

[@DaviddoesStuff]

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.

[@driftracing08]

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

[@driftracing08]

@kaza12345678 Hornblasters

[@jackfille3910]

300 dB is not just hearing loss, it's loss of life.

[@fransdevries4085]

Hooked up to an amplifier? 😂

[@noxplanationgaming]

Guys me big brane here! So 600db is like not that loud cause I have 900db horn loud and noisy good horn metal is made of.

[@edpall]

NOT DEFECTIVE, YOU ARE USING A SOURCE 12 V but VERY LOW AMP, TRY WITH A BATTERY DUDE, The transfo does not reach the AMPS needed

[@BrianD146]

It's not about the voltage it's about the amperage behind that Hook it up to a fully charged battery you'll get a different sound

[@DanneyTanner]

You have to have these connected to a fully charged battery to make them work proper

[@davidperry4013]

Realistically a car horn can only go up to 115 decibels and a train horn goes up to 140 decibels.

[@scootypuffjr.]

Tell me you don't understand electricity without actually telling me you don't understand electricity

[@MikesManCave]

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.

[@ItAintMeBabe99]

Why are you hooking them up to an “amplifier” ? They need a 12v DC battery,

[@dediKtion1986]

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.

[@DaviddoesStuff]

It's also not a filtered supply so it's probably 6-8 volts of AC going into the horns.

[@rickgallegos6530]

This is exactly right.

[@edpall]

AMP = AMPERES, = CURRENT, V is just voltage

[@josh_ari]

Like chinese flashlights for $9.95 that are 10x brighter than the sun. 😂😂😂

[@charlesmounts4927]

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.

[@ht-ve9fe]

I am fairly sure over about 280 DB or something is the point where the pressure begins to rupture your internal organs and hemorrhaging occurs

[@mustanggarland24]

Thanks for the heads up

[@digitaldreamer5481]

The 12 vdc + is suppose to be connect on the right. You have these horns connected in reverse.

[@RonALampman]

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.

[@Tempestspy]

You can open and adjust the vibrating part. These are good horns if you make them work

[@MW-tt3fy]

Do you need a hearing aid? I had my smartphone on full volume, my windows broke and after 5 minutes the coast guard was here. Greetings from Munich

[@jamesmckelvey4340]

Hey harry. How's it going? Sorry you broke your windows! lololol

[@rickgallegos6530]

Lol. Same happened to me. The problem is that it broke my neighbors windows as well.

[@joshuageorge979]

Why anybody would actually think this is gonna sound like a train horn just blows my mind, they're literally just very cheaply made car horns.

[@cdt996]

When you get your train horn off temu

[@beliveinjesusglory1326]

Connect to a high current source. May be directly to battery

[@Echo6Tango]

Only thing china produced that last is Cv19

[@GeorgiaBoi70]

300db would literally scramble your organs instantly. Guess we can be thankful they were defective.

[@rickgallegos6530]

Lol

[@icraftcrafts8685]

300 dB will break the internet. Literally

[@faisalalmulla8974]

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

[@waimeaguyz9074]

i was about to buy two horns. Now I'm not buying any horns!! Thank you.

[@davidaleman2371]

I got those horns also and does the same

[@dustyrhodes2717]

That’s the noise of Chinas economy imploding 😂

[@Peter_Riis_DK]

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.

[@marvempyreanlife]

They need more to it! They need the computer box that preloads the sounds.

[@alanpadgett5868]

Amp it up boy...

[@Convolutedtubules]

Amp it up You got to amp it up Don't you know, amp it up You got to amp it up

[@SHUTENSEPC]

Thx

[@sergioleyva1424]

You can adjust the loudnedd on them with a screwdriver there

[@corneilcorneil]

That sounds a no DC and no current. Don't blame the horns

[@MyCountryIsSaudiArabia215]

Like a 60hz fan or power!!!😂😂😂😂

[@retrozeru]

You need to add more amp

[@charliemorgan8658]

Lol He may not know what that means he needs a battery stored power

[@retrozeru]

@@charliemorgan8658 lmao

[@hemiv8949]

is that by putting a larger amperage fuse in the fuse box that for the horn?

[@Convolutedtubules]

@@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.

[@perryl3476]

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

[@HighVoltageMadness]

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.

[@gfam2023]

Turn the black screws out to change the tone

[@turkey0165]

The black Phillips head screw on the red diaphragm regulates volume and tone? Did you adjust that by turning counter clockwise !

[@AntonioClaudioMichael]

You need more amps then 2 amps for most horns

[@bunberrier]

Should we tell him? Nah. Lets not tell him.

[@Convolutedtubules]

Your little power we supply outputs 2A, a regular car battery easily exceeds 600A

[@rickgallegos6530]

Yup.

[@jasonclemente4392]

150db will make your ears bleed... Maybe they are so loud your ears already blown and you think they are defective 🤷🏽‍♂️

[@neoladams8519]

🤣👂💥

[@smitthone]

10 amp at least

[@smnkm4ehfer]

It was advertised as an impossible decibel level lol. What did you expect?

[@ganesgamebull]

"Backrooms sound moment"

[@daryldixon5280]

I love Chai Na

[@BIGMANMUSIK]

Stick to Hella horns! They never disappoint!

[@Foolzg]

If around 180 db can rupture your internal organs, where tf did you find 300db horns 💀

[@vastraun2249]

300 decibels isn't possible, that's louder than the tsar bomba

[@vastraun2249]

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

[@sleeptime5464]

You need a motorcycle battery.. I put mine on my bike and I love them

[@Ni5ei]

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?

[@user-RoadRunner377]

try testing with a 12 volt battery to see if there is a difference

[@jamespolucha8790]

Try adjusting the screw and see what will happen

[@clint6604]

You need to reverse the positive and negative

[@chrisgraham2904]

Absolute nonsense to advertise a horn that produces 300db. The loudest sound that has ever been created on Earth is 194db.

[@christianbenzinger770]

300 db..... For sure...

[@nickrogers6593]

There’s two grounds there’s a ground where the nut goes

[@Smurphenstein]

Yet another triumph of the Wish marketing department.

[@bennylloyd-willner9667]

OH, are they doing the marketing for eBay where he said he got these?😁

[@oantech4252]

Its like using a battery charger to turn a starter... Not going to happen... you need AMPS guy..!

[@codreasamir5652]

Good to know

[@pauldonovan5878]

Your plug-in device does not have enough amperage or performance behind it to honk that type of horn.

[@Nikgamingnl]

It sounds like 60 Hz hum

[@user-mp2rt4qh7k]

From china what did you expect guy

[@generalinfo9452]

They need to be adjusted like any electric horn

[@charliepearce8767]

Dont be a joe biden voter and give it some juice !!

[@raymondsantiago2651]

to your right top black screw

[@jtpinion4294]

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.

[@clint6604]

Hooked up backwards

[@mattiasmullback]

You have to adjust the volume on the black spot while it is running

[@RailsOfTheSouth]

That's not 300 decibels, more like 60

[@sebastianjacobo7894]

It sounds like an electric tire pump

[@michaelwooda9444]

Wire to a battery.and try adjusting the pitch screw

[@ministryofwrongthink6962]

somebody posted on YT before reading Google...

[@JacobCricket]

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

[@rickgallegos6530]

Amps. The problem is Amps.

[@eriosyce688]

190db is the highest possible

[@DevonMoenaert-ch8nw]

Yeah you need 15 amps definitely sounds like underpowered issue

[@WuHongLee]

Mount St Helens was 163dB. Tsar Bomba was 224dB. You don't want a 300dB car horn.

[@vastraun2249]

300db is not possible by manmade tech. Period.

[@dannydnice1]

I threw those out immediately lol

[@user-nj9uq7nw9h]

The black screw

[@bdullhe]

They are for 24v.

[@Peter_Pepper_the_Pickled_Piper]

You're power converter does not have enough current.

[@truckingwithmarco2649]

Hooked backwards. Check you polarity.

[@munkubus]

Use an actually battery. The amoss matter.