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Stereo speaker

A stereo speaker is generally a device which transmits electrical signals into sound signals. Speakers are well-known for providing the user with listening enjoyment of music. In particular, high-performance speakers cooperate with stereo systems to provide extreme clarity of various bass, mid-range and treble music components of the audible frequency spectrum. Accurate reproduction of recorded music requires a speaker system having a frequency range to beyond the human hearing range, which is about 16 Hz to 30,000 Hz. A high-performance speaker typically incorporates a woofer component, mid-range component and a tweeter component to provide the respective low frequency, mid-range frequency and high frequency components of a sound pattern. A single speaker will not faithfully reproduce each frequency in such a large range. A number of speakers reproducing different portions of the human hearing range are commonly employed to provide a speaker system covering the entire range. Most high performance stereo systems also include a center channel loudspeaker. A center channel loudspeaker has good measurable sonic performance even when the listener is off-axis. Bass speakers, operating at the lowest frequencies, produce sound waves having the longest wavelengths and require special enclosures for such waves. The higher range speakers, such as the tweeters, require a chamber of smaller dimensions than that of the bass speaker.

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