How A Horn Speaker Works - Exciting Horn Experiments!

Basically, a horn increases the sound output from a speaker. It does that by reducing the mass of air directly in front of the driver allowing it to move that mass of air more efficiently. This happens more effectively in the lower frequency range because it also stops the wave from propagating outwards to the sides. The highest frequencies are mostly unaffected because they beam directly forward. That extra output gives you more flexibility when you are designing the crossover. That lower end boost may al