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I am getting a CB and want a PA horn. Is there anything I should know about PA horns or can I just order anyone on the market?


I am also interested in getting an air horn. I ordered the ARB air kit so that I could refill my tires after fishing on the beach and I could inflate the air mattress on my camping trips. Can I use it to run an air horn when I am not doing those things?
 

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From the research I have done on Air Horns.. You need an air tank to run those super load air horns like on trains..
 

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I installed a Stebel air horn. They are not deafening loud but you get the added sound of an air horn. Plus it is a small compact horn with a small self contained air compressor.
 

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I have a 5 trumpet air horn in the jeep. If you want to go the loud train horn route you will need an air tank.I mounted the compressor and tank behind the front bumper.The horns sit in the space between the radiator and fan.The longest one is 18" or so.If you want to get someones attention this is the way to do it.Crazy loud and totaly unexpected.
 

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Real air horns need high volume/high pressure air so you gotta have a tank.

as for PA system, a radio shack PA horn hooked to a CB works pretty well.

problem with both is space, I used the BIG horn from radio shack and the only place I could find to mount it was over top of my rear axle since my tank, horns and compressor are under my hood.

but both are LOUD!

If'n y'all want I can try to get a video with the PA, here's an old one with the air horns....

jeep jk with air horns on Vimeo
 

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Real air horns need high volume/high pressure air so you gotta have a tank.

as for PA system, a radio shack PA horn hooked to a CB works pretty well.

problem with both is space, I used the BIG horn from radio shack and the only place I could find to mount it was over top of my rear axle since my tank, horns and compressor are under my hood.

but both are LOUD!

If'n y'all want I can try to get a video with the PA, here's an old one with the air horns....

jeep jk with air horns on Vimeo
Hey Venom is that your Jeep?
 

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Mounted my PA speaker here. Like mentioned- very little space. This was the only place I could justify mounting mine that would keep it away from heat and water/ mud. probably not as loud as venom's, but it can be heard very well on the trail.
 

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thats where my horns are mounted so it wasnt an option for me

for what its worth, my pa horn survived K2 untouched and some wet wheeling here - no mud bogging but driving through a few 20" deep or so water crossings with no problems
 

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Thats the sound of horn Im looking for. I would like to get rid of the stock horn. Put yours in its place and have train horns as my " I really need attention" horns or my "GET THE FUCK OUT OF THE WAY" horns lol. Actually thought about hooking up something that loud for my alarm horns also. Since I live in Chicago and all we have alarms going off all the time. Most of them sound weak as hell. At least with a train horn or something else I would know that its my Jeep vs everyone elses.
 

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Make sure the output of your CB/PA system outputs enough power. Many I've seen only output 4w which is pretty sad and quiet.

I ended up getting an in-line amplifier to boost it which helps some however there were no specs on that amp to judge the performance. I can dig up the link info if you'd like, theres not many of those types of amps.
 

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Make sure the output of your CB/PA system outputs enough power. Many I've seen only output 4w which is pretty sad and quiet.
I dunno about that -
i think it has more to do with speaker and placement than power.
4W is the max you're allowed to have in a CB by law.

It's loud enough that if I try to use it with no top/doors and there are walls too close, I gotta be careful about feedback - and my PA horn is under the jeep over the rear axle!
If I'm in a fairly open area its fine.
I bought one of those ~ $12 "loudmouth" CB PA amps and it does make it louder, but also more prone to feedback so its better if you're moving or in an open area.

Here'as a little clip shot and edited on my iphone 4 :thefinger:- stock horn for volume comparison then just the CB powering the PA then with the loudmouth its fairly obvious when the loudmouth is on and when its not.
I would have added the air horns for comparison but they're laying in the garage right now pending a redesign of the OBA system - but DAMN I miss them!

PA test on the Jeep on Vimeo
 

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train horns = HUGE!

good luck finding a spot for them, I had a hell of a time finding a place for my horns!
Yeah I know. lol I live in Chicago. Theres a lot of "noise" that I will need to be heard over lol. So you got your horns at Radio Shack? Do you have a model number or something? I want that same sound. I hate those whimpy ass euro "air horns" that are all high pitched.
 

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I got the pa horn (speaker) from crack shack - they have 2 models - a small and large - I got the large, but once again - its huge and tough to find a spot for

the air horn setup I got from a buddys shop in florida
compressor, 2g pancake tank and 2 semi truck style air horns
 
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