| 摘要 |
PROBLEM TO BE SOLVED: To obtain a speaker box that has few resonances. SOLUTION: This speaker box consists of a front plate, an upper plate, a bottom plate, a rear plate and side plates. The upper plate, the bottom plate the rear plate and the side plates are formed with damper sheet 8, with craft paper 13 adhered thereto while being clamped by MDF 9, 10, and an attached plate 11 is adhered to an outer face 9a of the speaker box main body 1 and a warpage preventing sacrificing adhering member 12 is adhered to an inner surface 10a of the speaker box main body 1. The damper sheet 8 is formed by blending polyester resin and a cast iron powder which was filtered through a 30 mesh filter at a weight ratio of 1:10 in weight.
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