| 摘要 |
A length-adjustable cabinet includes at least a first enclosure and a second enclosure. The second enclosure can be telescoped into and fitly received in the first enclosure to reduce an overall length and volume of the cabinet, or pulled outward relative to the first enclosure to a predetermined extended position to increase the overall length of the cabinet for the latter to provide enhanced low-frequency sound effect. And, a diaphragm is mounted to a free open end of the first or the second enclosure.
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