| 摘要 |
The speak comprises a speaker body which consists of a cabinet(1), a front plate(2) and a rear plate(3), a first air room(5) and a second air room(5a) which are separated by a baffle plate (4) and respectively have different cubic volumes, passive radiators(7)(7a) shaped on the speaker body to vibrate according to sound pressure generated by a speaker(6) to output sound to the outside. The passive radiators called as drone cone comprises only a frame(B) and a vibrating plate(C).
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