Acoustic Horn With Voltage 230 V is a tapered sound guide designed to provide an acoustic impedance match between a sound source and free air. This has the effect of maximizing the efficiency with which sound waves from the particular source are transferred to the air. very efficient design because the diaphragm doesn't have to oscillate very much in order to create a loud sound compared to say, a cone diaphragm. Because of their great efficiency, horns are still used in PA speakers for issuing announcements and warning signals.

• High durability