loudspeaker ratings - Gadget World
A loudspeaker (commonly referred to as a speaker or, more fully, a speaker system) is a combination of one or more speaker drivers, an enclosure, and electrical connections (possibly including a crossover network). Find professional-grade loudspeakers engineered for exceptional sound quality, durability, and versatility across various applications. Loudspeaker, in sound reproduction, device for converting electrical energy into acoustical signal energy that is radiated into a room or open air.
Understanding the Context
The loudspeaker should preserve the essential character of this signal energy in acoustical form. Learn more about loudspeakers in this article. A loudspeaker using dynamic drivers is often called a box loudspeaker because the drivers are mounted in a box-like enclosure or cabinet. Ribbon and electrostatic loudspeakers are called planar loudspeakers because they’re usually mounted in flat, open panels.
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Key Insights
When you hook up the loudspeaker to a stereo, electrical signals feed through the speaker cables (red) into the coil. This turns the coil into a temporary magnet or electromagnet. As the electricity flows back and forth in the cables, the electromagnet either attracts or repels the permanent magnet. In this animated diagram, you can see how a loudspeaker works. A stereo or amplifier drives the speaker with an electrical signal that alternates from positive to negative in the shape of the musical signal.
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A Research team at MIT has developed a thin, flexible loudspeaker that can be mounted to any rigid surface (such as a wall), turning it into a high-quality audio source. Learn about the applications.