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loudspeaker
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loudspeaker
loudspeaker Four-way loudspeaker.

loudspeaker

audio instrument
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Also known as: speaker
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Also called:
speaker

loudspeaker, in sound reproduction, device for converting electrical energy into acoustical signal energy that is radiated into a room or open air. The term signal energy indicates that the electrical energy has a specific form, corresponding, for example, to speech, music, or any other signal in the range of audible frequencies (roughly 20 to 20,000 hertz). The loudspeaker should preserve the essential character of this signal energy in acoustical form. This definition of a loudspeaker excludes such devices as buzzers, gongs, and sirens, in which the acoustical signal energy does not correspond in form to the electrical signal. The part ...(100 of 267 words)

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