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Topic Review (Newest First)
04-07-2011 03:28 PM
Red Wrangler alright thanks for the help
04-07-2011 02:36 PM
Jerry Bransford Like any speaker, a PA horn can be designed with low or high input powers in mind. A PA horn that was designed for a higher power (watts) input isn't going to be very loud when connected to the PA speaker output on a CB which, at most, puts out maybe 3-4 watts of audio power.

So if you're looking at two or three different PA speakers and they are rated at 5 watts, 10 watts, or 25 watts, you need to go for the one rated at 5 watts. A speaker's power rating is only how much power it can handle without distortion, not how loud it is at any given power provided by the amplifier. That PA horn rated at, say, 25 watts just isn't going to be very loud if only driven with 3-4 watts of power from the CB's PA speaker jack.

And if the PA horn also has an additional spec given called its "Sensitivity" rating, always go for the highest possible Sensitivity which is expressed in dB (decibels). You'll need its Sensitivity rating, if given at all, to be over 90 dB and the higher that Sensitivity rating, the louder it will sound with your CB's PA function.
04-07-2011 02:31 PM
dan188 Pep boys used to sell a PA horn that also had 15 or 20 sound effects on it. You could play sirens, animal noises, etc. My buddy had one on his f-150 and it wad hilarious to play with, but like you said, since it was cheap plastic it broke after a while.
04-07-2011 02:24 PM
Red Wrangler
Cb/ pa

thinking about getting a CB for my jeep, and if i get a CB im gonna get a PA horn. any suggestions on PA horns? i saw a lot online at but they seemed "too inexpensive" i dont know the price range but it seemed as if they wouldnt be good quality and most of them were plastic. i dont see how the plastic could go well with the heat in the engine compartment.

thoughts, comments or suggestions?

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