| 摘要 |
A speaker system (10) includes a speaker unit (14) and a horn (12) having an end portion to which the speaker unit (14) is attached. A first membrane (24) is attached to an end portion of the horn (12) to block the end portion. A second membrane (26) is installed to the other end portion of the horn (12). A closed room (30) is provided by way of the first membrane (24) and second membrane (26). The room (30) is filled with a gas which is heavier than air. |
