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The Relationship Between The Pitch And The Pitch Of The Horn Dust Cap In Loudspeaker System
Jul 10, 2018

As we know, one of the main functions of dust cap is to prevent dust particles from falling into the sound ring, which affects the normal operation of sound ring and speaker unit. In addition, however, will the design of the dust cap affect the sound of the loudspeaker itself?

Generally, in addition to the units using phase cones, the common speaker units, especially the medium and low tone units, are commonly used in dust caps. As we know, one of the main functions of dust cap is to prevent dust particles from falling into the sound ring, which affects the normal operation of sound ring and speaker unit. In addition, however, will the design of the dust cap affect the sound of the loudspeaker itself? In particular, we found, it would be easy to dust cap has concave and convex, respectively, and the differences in shape, will directly lead to the horn on the quality characteristics also have different?

The common loudspeaker unit dust cap, in the design is often convex and concave, but there is also a consideration from the sound quality perspective.

We know that the dust cap on the structure and phase one of the largest cone, respectively is the dust cap is actually attached to the basin above, along with the sound together with basin vibration, thus for the dust cap from the broad sense is actually part of the "diaphragm", also participate in the voice; Therefore, the differences in shape will also lead to the differences in the characteristics of loudspeaker units.

Compared with convex concave dust cap dust cap, an important difference is that the vibration mode and which directly leads to different degree of resonance, which will directly determine the characteristics both in sound and frequency response curve, respectively. Specifically, convex dust cap can for segmenting the speaker unit vibration form strong inhibition, but also can filter out part of the high frequency signal of excessive, but at the same time its resonance is bigger, so the curve peak is bigger, that is to say, flat frequency response curve in laymen relatively poor; The concave dustproof cap, due to its low resonance degree and relatively low peak value, can achieve ideal flatness in the curve shape, so it will have better directivity.

In terms of sound quality, the loudspeaker unit with a convex dustproof cap will make the sound more smooth to the ear, but at the same time, the resolution and image binding force are relatively weak and the sound is relatively thick. The horn that USES concave dustproof cap, sound is inclined clear and bright, and have more apparent fruity feeling at the same time.

After learning that the described above concave and convex dust cap after the voice of the respective characteristic difference, you should choose to fit their tastes the horn back, also can have a try first before auditions, according to the shape of the dust cap in carries on the preliminary selection of many of the horn.

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