| 摘要 |
A wide dispersion speaker system 1 comprises a cone type speaker unit 2 , and a restricting element 10 A. The restricting element 10 A is provided with a center hole 11 at a center section thereof, and a peripheral hole 12 located outward relative to the center hole 11 . The restricting element 10 A has an annular sound travel inhibiting portion 19 positioned radially outward relative to the center hole 11 and radially inward relative to the peripheral hole 12 . An outer end in a radial direction of the sound travel inhibiting portion 19 is positioned at a substantially middle point between an outer end in the radial direction of the center hole 11 and an outer end in the radial direction of the peripheral hole 12 or positioned radially outward relative to the substantially middle point.
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