| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproofing speaker system which has enhanced low-pitched sound reproduction property by improving waterproofing performance and has reduced weight and manufacturing costs, and also has improved sound quality of a high register. SOLUTION: This double bass-reflex speaker system is configured by interposing, between a first air chamber in which a speaker unit is arranged at a baffle board and a second air chamber in which an acoustic output to be generated on the back face of the speaker unit is radiated from the buffer board, a partition board so that acoustic transmission can be achieved, and integrally configuring a cabinet. The speaker unit subjected to waterproofing processing is arranged at the baffle board of the first air chamber, and a drone cone unit subjected to waterproofing processing is arranged at either the partition board or the baffle board of the second air chamber, and an acoustic duct is arranged at the partition board or the baffle board in which the drone cone unit is not arranged. COPYRIGHT: (C)2008,JPO&INPIT
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