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JPS583689

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DESCRIPTION JPS583689
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a cross-sectional view of a dome-shaped speaker incorporating the equalizer of this
invention, FIG. 2 is an enlarged cross-sectional view of the equalizer, FIG. 3 is frequency output
sound pressure characteristics, and FIG. 4 is frequency energy characteristics.
11-05-2019
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