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AHVUL
Vulcan Air Horns. These air horns give a loud warning blast of 128 decibels! Uses the stock horn button. Can be easily installed in 20-30 minutes. The trumpets are triple plated chrome as well as all of the mounts and brackets so the shine and finish will last for years to come. They are completely waterproof. No hole drilling is required: bolt-on, plug-in installation. Cone shaped covers are included which mount to the front of the trumpets. One year unlimited warranty. All kits include two horns, air compressor, relay, simple wiring and complete installation instructions.
The air compressor creates instant air pressure to the horns. Since the pressure is created so fast there is no need for a storage tank as on Semi Trucks and RVs. Although the pressure is very low (12-15 psi) it delivers a large volume of air (3 CFM or cubic feet per minute). This low-pressure high volume air supply causes the diaphragm inside the horn to vibrate at a high rate of speed or *frequency* the exact speed at which it vibrates is varied by the length of the horn or trumpet. Together the horn set produces an extremely loud 128-decibel warning blast. This is approximately 4 times louder than most electric motorcycle horns, which usually rate at 87 decibels.
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