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JPS54108026

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DESCRIPTION JPS54108026
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a stocker system having a
conventional stepped cabinet, FIG. 2 is a cross-sectional view of a bass speaker used in the
present invention, and FIG. 3 is one embodiment of the present invention. It is a schematic side
view. Explanation of symbols of the main parts, 5: speaker for bass, 7: diaphragm, 10: cabinet,
12: speaker for high-pitched sound, 13: speaker for medium-pitched sound.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a loudspeaker
system assembly in which loudspeakers for different ranges are housed in the same loudspeaker
cabinet. In the speaker stem, it is possible to place the speaker radiation M at different crossover
frequencies by staggering the front and back signal positions of the speaker for different tone
range, pee force, for example, the bass speaker and the mid to high tone speaker It is necessary
to equalize the time to reach the observation point. The outline of the structure is shown in FIG.
1; ▪ is a speaker for middle and high-pitched sound, 2 is a speaker for bass, and 3 is a speaker
cabinet. As shown in the drawing, it is necessary to form the speaker mounting portion of the
speaker cabinet 3 so-called baffle 4 in a stepped manner, and the manufacturing process is
increased, which is not preferable. As another method, the baffle plane has a structure in which
the frame of the low frequency speaker is processed in the same plane and the front of the low
frequency speaker frame is projected forward, but it is necessary to apply special processing to
the low frequency speaker frame. Absent. An object of the present invention is to provide a
speaker system assembly which has a simple structure of a speaker cabinet and does not need to
process a bass speaker. Hereinafter, the present invention will be described with reference to the
drawings. FIG. 2 shows a bass speaker 5 used in the present invention, which has a convex
diaphragm 7. That is, the center of the vibrating plate 7 connected to the voice coil 6 and
vibrating is the apex, and the shape is lower than the apex as it extends from the apex to the
outer periphery. Therefore, the height gradually increases in the inner circumferential direction
from the edge portion 9 of the diaphragm 7, and is formed in a convex cone shape with the
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central portion at the top. This has a reverse shape of the diaphragm of a general cone speaker,
and has a 3-structure in which all the diaphragms project forward from the surface of the cabinet
mounting bracket 8 of the speaker. Such speakers are well known and readily available. FIG. 3 is
a schematic side view showing an embodiment of the present invention. A baffle 11 which is a
speaker mounting surface of the speaker canopy 1o is formed in one plane. Then, the highpitched speakers 12. Speaker for medium sound 13. And a bass speaker are attached. The bass
loudspeaker 5 has the structure shown in FIG. Similarly, the integrated speakers 12 and 13 may
be used. Therefore, the diaphragms 7 of the bass speaker 5 are all structured to project forward
of the baffle 11.
Other speakers may be dome-shaped speakers, hos / shaped speakers or general cone-shaped
speakers. With this configuration, the bass speaker 5 substantially protrudes forward of the other
nos beakers 12, 13 and adjusts the arrival time of the crossover frequency person to the listening
position as in the case of the conventional FIG. This makes it possible. Therefore, the structure of
the cabinet is simplified, and there is no need to process the bass speaker, and a commercially
available speaker can be used. Also, for example, when a dome-shaped speaker is used as a midsound speaker, the sound source moves forward as compared to a general cone-shaped speaker,
but it is easy to match the sound source position in the case of such Benefits. Furthermore, the
directivity characteristic is improved because the bass speaker is a convex cone-shaped
diaphragm.
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