| 摘要 |
In some cases, constant directivity of a speaker system is desirably obtained in a wider frequency range. However, a speaker system using a constant directivity horn is frequently used in combination with a box speaker containing a woofer unit. Such a system becomes large in size. Furthermore, constant directivity is desirably obtained in a lower frequency. A speaker system 10 includes an enclosure 20 , a first speaker unit 30 for low frequency and a plurality of second speaker units 31, 32 , and 33 for high frequency. The enclosure 20 includes a front plate portion 21 which is a baffle plate and a rear plate portion 23 . A length of the rear plate portion 22 in a first direction perpendicular to a forward and backward direction is shorter than a length of the front plate portion 21 in the first direction. The first speaker unit 30 and the second speaker units 31, 32 , and 33 are mounted to the front plate portion 21 . The plurality of second speaker units 31, 32 , and 33 are arranged in the first direction. Vibration plates of the plurality of second speaker units 31, 32 , and 33 are located in the vicinity of the front plate portions 21 in the forward and backward direction.
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