| 摘要 |
A compact speaker system is capable of reproducing a heavy bass sound with a superior transition characteristic. A sound radiated from a speaker unit passes through a three-dimensional spiral sound passage formed by a coaxial dual-tube structure provided in front of the speaker unit. In the coaxial dual-tube structure, a spiral partition plate is provided to bridge a gap between an outer tube and an inner tube so as to form the spiral sound passage.
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