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JPS56102190

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DESCRIPTION JPS56102190
Description 1, title of the invention
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3. Detailed Description of the Invention The present invention relates to a loudspeaker system in
which the influence of floor reflections of bass is eliminated. As a conventional speaker system,
as shown in FIG. 1, the bass speaker 3 is attached to the lower part of the baffle plate 2 of the
cabinet 1, the bass reflex tuning boat 4 is provided near the bass speaker 3, and the bass speaker
3 is further provided. The speaker for medium sound 5 is spared at the upper part of the upper
part, and the speaker 6 for high sound is forked at the upper part of the speaker for medium
sound 6 with a fork. Besides these, there are a 2-way speaker system without mid-range speakers
etc. and a closed-type speaker system without bass reflex tune port 4 etc. And the high-tone
speaker 6 is arranged in the upper position. This is a configuration for the high-pitched speaker
6 to be close to the height of the human ear at the listening position because the directivity is
narrow and sharp. However, it is close to the position of the bass speaker 3 or the position to
install the speaker system, and it is affected by the sound absorption coefficient and reflectance
of the rattan and the condition of the unevenness, and the sound of the bass region is largely
different. The Moreover, since the sound source position to each speaker at the listening point is
completely different, the phase characteristic over the whole band as a speaker system is not
good. The present invention eliminates the above-mentioned conventional drawbacks. An
embodiment of the present invention will be described below with reference to FIG. 2 and FIG. 7
is a cabinet, and a speaker 9 for bass is brazed parallel to the baffle plate 8 so as to face the
listening point at the upper center of the baffle plate 8 at the front of the cabinet 7 '. At an upper
portion near the speaker 9, a 14-bath reflex port 10 is provided. Further, the mid-tone speaker
11 is attached to the lower part of the bass loudspeaker 9, and the high-tone speaker 12 is
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attached to the lower part of the mid-tone loudspeaker 11. The mid-tone speaker 11 'and the
high-tone speaker 12 are mounted so as to be inclined with respect to the baffle plate 8 (with the
front facing the listening point). It is a 131-i floor. Further, positioning is performed so that the
distance from the sound source position of each speaker is equal to the distance at the listening
point call as necessary. Although the three-way type is shown in the above embodiment, the twoway type except for the mid-tone speaker 11 or the bass reflex tuning port 10 may not be
provided. As described above, since the speaker system of the present invention is configured,
the bass speaker is separated from the floor and not only the floor reflection sound pressure is
reduced, but the frequency to be influenced is also increased, and the bass speaker is out of the
band. Since there are wrinkles, and the middle to high-pitched speaker also faces the front of the
listening point, it is possible to eliminate the sound quality deterioration due to directional
chopsticks.
By adjusting the position of each speaker, it is possible to equalize the distance from the sound
source of each speaker to the listening point, and it is possible to improve the phase
characteristic as the speaker system. It is a dog of industrial value that has many advantages like
this.
4. Brief description of the drawings. FIG. 1 is a positive (2) view of a conventional speaker
system, FIG. 2 is a top view showing an embodiment of the speaker system of the present
invention, and FIG. is there. 7 ...... cabinet, 8 ...... baffle plate, 94 ... ? ? bass speaker, 1o --- ии land
Sure flex tune port, 11 и ? и Yamanaka sound speaker, 12 ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Floor.
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