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JPS5840993

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DESCRIPTION JPS5840993
[0001]
Brief description of the drawings
[0002]
FIG. 1 is an explanatory view showing the arrangement of a conventional stationary speaker, FIG.
2 is an explanatory view showing a structure of a conventional double cone type speaker, and
FIG. 3 is an explanatory view showing the arrangement of the double cone type speaker similarly
FIG. 4 is a cross-sectional view showing the structure of a double cone type speaker as one
embodiment of this idea. 10: double cone type speaker, 18: cone for low frequency range, 19:
cone for middle to high frequency range, 19a: radial aperture, Ll, L2: main sound axis.
01-05-2019
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