| 摘要 |
According to one embodiment, an acoustic reproduction device includes a loudspeaker unit, a loudspeaker rear chamber unit, and a port unit. The loudspeaker unit generates a sound wave. The loudspeaker rear chamber unit includes a chamber portion in which the loudspeaker unit is arranged, and at least one of a duct portion and a branch portion. The duct portion and the branch portion each have a volume, a cross-sectional area, and a length different from those of the chamber portion. A port unit is connected to the loudspeaker rear chamber unit and has a port to externally output a rear wave. The duct portion guides the rear wave from the loudspeaker unit up to the port unit.
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