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JPS5130517

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DESCRIPTION JPS5130517
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a conventional resin equalizer,
FIG. 2 is a sectional view taken along the line II of FIG. 1, and FIG. 3 is an embodiment of this
invention for the legs of the equalizer. It is. 3 ... resin, 4 ... copper plating, 5 ... nickel plating, 6 ...
chromium plating. Figure 1 Figure 3 Figure 2! Association = First base-39 =
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a speaker equalizer for horn or domed speakers. As a speaker equalizer, a book made of resin
as a material conventionally, or zinc, aluminum, etc. are used by die-casting by using dielc. In the
case of Km people, the equalizer itself picks up because it is strong or weak, that is, the equalizer
itself vibrates due to the sound pressure from the diaphragm 1 and when it reaches a high
frequency, the equalizer part and the legs that support the equalizer part It has been found that
the sound quality is deteriorated by causing division vibration up to the part. However, there is a
merit in # 'i that the cost of making this resin is low. On the other hand, in the case of the latter,
ie, the one made of die cast, the equalizer itself hardly shows any vibration, and the sound quality
is much better than that made of resin, but has the disadvantage that the cost is high. The
present invention focuses on the above points, and aims to provide a speaker equalizer that can
prevent the vibration and split vibration of the equalizer itself and can be inexpensive. An
embodiment of the present invention will be described below with reference to FIG. 5. In FIG. 1, a
table 1 of a resin equalizer of a taste represented by the shape of FIG. It is FIG. In FIG. 1, a
description will be given of an embodiment of an equalizer unit, an equalizer unit (2), and a leg
unit (2). Copper plating (4) applied to the entire area of the resin (3) in the buttock area as shown
in Fig. 5 (A), and nickel (or chromium) plating 151 may be further applied to this Fig. 5 (A) In
other words, copper plating 141 is used as the base and nickel plating (5) is applied as shown in
FIG. 3 (b), and further, FIG. ). The above plating is not limited to only the legs. As described above,
this device is obtained by applying metal plating to a resin-made equalizer, so that the surface
strength (hardness) can be considerably improved, and therefore has the following features. The
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first K, the mass of the equalizer section is increased, and the compliance of the legs is decreased,
so the resonance frequency is increased or negative, and the second divided resonance is also
balanced with the stiffness of the equalizer section and the legs. Therefore, it is possible to
improve the sound quality and timbre, and to get close to the characteristics of a die-cast ##
(metal) equalizer, since the disadvantages inherent in the resin equalizer can be eliminated by
making it high or negative. In addition, since the cost is only metal plating on the resin equalizer,
it is not so expensive, and the appearance can be improved and the weather resistance can be
improved.
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