Acoustic suspension
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The acoustic suspension woofer is a solution to the problem of bass distortion in loudspeakers caused by non-linear, stiff mechanical suspensions in conventional loudspeakers.
[edit] Explanation
The acoustic-suspension woofer (sometimes known as “air suspension”) uses the elastic cushion of air within a sealed enclosure to provide the restoring force for the woofer diaphragm.
The entrapped air of the sealed-loudspeaker enclosure, unlike the mechanical springs of conventional speakers, provides a linear spring for the woofer's diaphragm, enabling it to move back and forth great distances (“excursion”) in a linear fashion, a requirement in the reproduction of deep-bass tones.
The best loudspeakers continue to use the acoustic-suspension principle for high-quality, low-distortion bass reproduction.
[edit] See also
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