Why Are Semi-Truck Horns so Loud?

A distinctive feature of semi-trucks is their air horn, which produces a loud trumpet-like sound. Let’s take a closer look to find out why truck horns are so loud — and the purpose for using them.
Semi-trucks feature a trumpet-like air horn, which is very loud compared to horns in cars. Find out the reasons why truck horns are so loud.

600DB Train Horn Super Loud 3 Trumpet Air Horn Kit For Semi Truck

Product Information: This powerful quad trumpet air horn produces a loud roaring sound. Chrome look, made entirely of metal for maximum protection

300DB Train Horn Loudest 4 Trumpet Air Horn Kit Fits Semi Truck Boat Van Car

Big rig and semi truck horn honks at the 75 Chrome Shop with AIR

Triple Trumpet Train Air Horn Tank Capacity: 2 Gallon (8 liter) 12 volt 150 PSI Compressor Thermal Overload Protection Mounting Hardware Included

Vixen Horns Train Horn Kit for Trucks/Car/Semi. Complete Onboard System- 150psi Air Compressor, 2 Gallon Tank, 3 Trumpets. Super Loud dB. Fits

HornBlasters Mini-Tug Black Loud Air Horn for Semi / Large Truck

HornBlasters Super Echo Air Horn. Get ready to turn heads with the HornBlasters Super Echo Air Horn! The horn's resonance chamber between the two

HornBlasters Super Echo Loud Air Horn Set for Semi or Large Truck - Big Rig

Vixen Horns OCTOPOD Train Horn for Truck/Car. 8 Air Horn Chrome

This Semi truck air horn, the Valkyrie, is designed to protect your expeditions. Its Triple chrome-plated metal trumpet ensures durability, while the

Loud 145 dB. Chrome Single Trumpet Semi Truck Air Horn

152 dB Single Trumpet Air Horn with Weather Protection Cover

Super Loud Single Trumpet Square Semi Truck Air Horn 12v/24v With

Loud Train Horn For Truck - Temu

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Very Loud 152 dB. Chrome Semi Truck Single Trumpet Air Horn