The invention of equipment for converting an electrical signal at the input into an acoustic signal at the output is more than 100 years old. Modern loudspeakers have found application in a wide variety of spheres of human activity, both as independent sound devices and complete with electronic (technical) products.
Construction of transformer acoustic systems
The relay networks that make up the warning systems include the required number of transformer-type loudspeakers operating according to the matching principle. It consists of several stages:
- Transmission of an electrical signal from an amplifier, without losing its power.
- Step down the signal in the transformer.
- Convert an electrical value to an audio signal.
Transformer loudspeakers can be made of various materials to ensure that the speaker is securely mounted in a given place and protect it from environmental influences. They are separated by application:
- For indoor installation.
- Highly protected outdoor loudspeakers.
Explosion-proof, used for warning in rooms with a high degree of pollution and a high percentage of flammable or aggressive substances.
For uniform and high-quality sound in a given space, the loudspeakers are installed with a step that excludes dips. In calculations for the installation of ceiling-type acoustics, it is recommended to use the ray method, in which the direction of sound vibrations is associated with geometric rays.
