AFI dual trumpet air horns put out 121 decibels, so you can be assured of being heard. The low frequency travels fast and far over water. The Dual Trumpet Air Horn comes in two different models one with a chrome plated solid brass finish, and one with a white epoxy powder-coated finish over solid brass.
The diaphragms are made of non-corrosive Lexan material that is built to last. Each package includes the 12 amp compressor, air tubing, fittings, and hardware. Both models are intended to be mounted on the bow or cabin top of your boat. Measures 17'' L x 7'' W x 3 3/4'' H.
Available in 12 Volt and 24 Volt models
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Dimensions: 17 in L x 7 in W x 3-3/4 in H
Maximum amp Draw: 12 Volt, 20 Amps 24 Volt, 10 Amp
db Rating: 121 at one meter, 1/3 octave band
Fundamental Frequency: 375 plus/minus 15
how do you tune (adjust sound) a boat electric trumpet dual horns? thanks for any help.
I don't know if you can tune these
There is no adjustment. This is a compressed air driven horn and the sound is strictly derived from the air flow from the supplied air compressor.
As far as we can tell there is not an adjustment.
I don't believe the sound (tune) can be adjusted on air horns. Changes to the valves and length of horn would have to occur and probably way beyond the normal user. Electric (only) horns can sometimes be adjusted by tweaking the setting screws or bolts in the center of the diaphragm inside the horn. Too much tweaking may render the horn useless. I have not attempted to change or tune the trumpet type horns installed on my boat. The air pressure does make a slight difference but basically the same sound
You can not tune these trumpets. They are designed to be within the frequency range defined by regulation for vessels of this size.
I don't believe there is any adjustment for sound. They sound great as they are. Just make sure to oil the compressor every season.
What psi is required to operate these horns? Looking at using on board air.
I don't know. I used the air pump that came with it.
All I can say is that it is not much. I used the air pump from a prior set of horns and they work fine. I suspect the psi for these things is about the same for all, so I suggest looking at some spec sheets to find the quantitative answer. By the way, these horns were bought in 2012 and they still look and operate as new. The prior set I had deteriorated much more quickly.
Do these horns that are air driven require hi maintenance due to saltwater and the environment?
I have used air horns on my trawler for over 23 years; had to replace them once. My installation keeps the compressor under the flybridge and the business end of the horns under an overhang at the bow side of the flybridge. I keep the horns tilted slightly down, enough to cause water to flow out the horn end and not sit in the business end where the reed is located. The reason for replacing the first horns was tarnish on the chrome horn,s not issues with the compressor or reeds. If I had washed the horns off with fresh water more often I am sure I could have gotten more years out of them. The quality is as good as most recreational boat products or slightly better. Jamestown Dist is a wondeful source, with a fair price and quick delivery.
Does anyone know how to locate and download the specs including drawings and dimensions and installation instructions for this air horn?
what is the price of the horn in indian money
I just modified what was there to accommodate these horns. It was not a big job.
U can hear me now
Installed this air horn after going through two elec, horns of same style from west marine . Easy install and they work great
Perfect fit, great sound
I asked for these for Father's Day to replace a set on my boat that sounded like a dying duck. They fit perfectly in the same hole pattern as the original horns and sound great.
I picked up a boat with a set of these horns and the compressor was not working. The horns polished up beautifully, so I only needed to replace the compressor. I was concerned due to one of the reviews that indicated the horns had an "AhooGa" type sound that he found embarrassing. I disagree. The sound is classic twin trumpet boat horn with no transition of sound as implied by the other reviewer. I'm thinking he may have a pinched hose that is restricting air flow until the pressure builds. As to the buzzing of the compressor, that might be an issue if mounted inside a quiet cabin. In my case it's mounted in a cabinet above deck and I can't hear it over the sound of the horns. Nice quality in general. We'll see how long the new compressor lasts.
Great sound and loud!
Very nice looking and fairly easy to install once you figure out where to mount the compressor. Mounted mine in the cupboard above the stove on my 381 CC Catalina. The issue was that after a hot day the tubing would start to collapse at the bends and then no horn or a sick sounding single! A trip to the store for 3, 1/4" 90 degree elbows and problem fixed! They are so loud and great sounding (look great too!) They know we are coming now when we blow our horn and no wondering if they are going to honk or not like our old electric ones.
"Always Going Somewhere"
Great Air Horns
Replaced old air horns. Almost plug and play. Very loud and good sound. Just what I wanted. Worth the price. Nice quality.
Traverse City, MI
Well made but dissaponted
The compressor is very noisy...and has to be mounted very close to the horn itself, for me that means inside the pilothouse. When you blow the horn the compressor buzzes VERY loudly and it sounds like an AhooGa style horn. If you are real far away from the boat it sounds OK but on-board it is laughable. Frankly I am embarrassed when I use it and plan to remove it. I plan to go with an all electric horn and avoid having to explain the strange sound to my guests each time I use it.
Good loud air horn; simple install
This horn has been in production for over 30 years and fit the old mounting holes perfectly. White finish matches other fore deck devices and blends with trim.Be sure to mount the motor out of the weather and spray it with a corrosion preventive when finished. (the motor hardware is zinc-plated, not stainless steel)[...] lowest price from Jamestown Distributors.
Replaced another manufactures horn set which only lasted a couple years, hope these out last the boat.