Box that plays the sound you want [Why professionals can count on]

Building a car audio system requires a variety of experience and skills. There are reliable professionals who have more than enough of them. In this series, the professional value is clarified. This time, I will explain the "greatness" of a professional in the production of a subwoofer box.

If you want to get a more "real" bass, the "unit subwoofer" is at its best!

By the way, if you want to improve the sound of car audio, "bass enhancement" is also a point. As I explained in the previous article, there are two main reasons for this. The speakers attached to the door have a limited ability to reproduce infrasound in terms of diameter, and the road noise generated when driving masks the bass. As a result, car audio tends to lack bass. However, if you introduce a "subwoofer", you can make the bass sound firmly.

So, last time, I explained the reason why "Car Audio Pro Shop" is reliable even in the introduction of "Powered Subwoofer" which can make "Bass enhancement" easier. Following that, this time, I will explain when trying to perform more full-scale bass reproduction.

If you want a more authentic bass, the introduction of a "unit subwoofer" is a good idea. A "unit subwoofer" refers to a "subwoofer unit" that is sold separately, but in this case, the diaphragm can be stroked more firmly than a small and thin "powered subwoofer". The air can be shaken enough to reproduce a deeper ultra-bass.

However, the hurdles for introduction will rise. This is because in order to sound the "unit subwoofer", it is necessary to prepare a "subwoofer box" and an external power amplifier together. By the way, ready-made "subwoofer boxes" are also on sale, so you can use them to reduce costs. However, if you want to get the most out of your "unit subwoofer" and want to control how it sounds, you should turn off the "subwoofer box".

Get the sound you want by boiling down the size and shape of the box, and even "port tuning"!

This is because the way the "unit subwoofer" sounds depends on what kind of box it is installed in. By devising the type, size, shape, etc. of the box, tight bass can be obtained or more relaxed bass can be produced.

However, making a "subwoofer box" is not easy. The fact that the sound changes depending on what kind of box you make means that the result you get will also change depending on the degree of perfection. However, professionals can make "subwoofer boxes" with a high degree of perfection.

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There are various points to make a better box. Let me explain what the points are. First of all, "design ability" is required.

By the way, there are several types of "subwoofer boxes", but the two that are often used in car audio are the "shield box (sealed type)" and the "bass reflex box (phase inversion type)". .. The "bass reflex box" is more difficult to design. The sound of the "shield box" also changes depending on the size, shape, etc., but the "bass reflex box" has more elements that need to be devised.

The biggest point is the "port". A hole called a "port" is provided to release the sound energy emitted from the back side of the "subwoofer unit" to the front side, but by devising the design of the "port", the nature of the sound energy emitted to the front side Can be changed. In other words, sound tuning can be done in this part.

However, it takes experience and knowledge to design a "port" that produces the desired effect. In that respect, the "Car Audio Pro Shop" can complete a "bass reflex box" that sounds as intended while also utilizing design software.

Inject various techniques and consideration into the production process!

And "Car Audio Pro Shop" has various know-how in assembling "Subwoofer Box".

Let me explain what kind of know-how we have. The first point is whether or not the board can be cut out accurately, but professionals have the tools and techniques to cut out the board with the correct size.

Next, in the assembly work, the point is to ensure high airtightness. For that purpose, it is important to firmly bond the boards, and treatment may be applied to prevent gaps. Professionals also have a wealth of know-how about them.

Furthermore, I want to finish it cleanly. When I put the box in the trunk, I don't feel good if the box doesn't look good. In that respect, professionals have the technique of painting and sticking fabrics neatly. In addition, we will incorporate ingenuity to finish it beautifully. For example, a decorative board is attached to the surface where the joints of the boards are visible, so that the parts that you do not want to see are well hidden. In addition, the mounting surface of the "unit subwoofer" may be devised so that the frame of the "unit subwoofer" and the plate on the mounting surface become "truichi".

Alternatively, the trick is also drawn out to the wiring part. Work is done to improve the airtightness of the holes through which the cables are passed, and the specifications are such that the cables can be easily inserted and removed. That way, you can easily remove the box when you want to load your luggage. Professionals finish the "subwoofer box" while paying close attention to it.

That's all for this time. Next time, I will explain the professional value of "bass enhancement". looking forward to.

Shozo Ota | Writer After graduating from university, worked for a publishing company and gained a career as a magazine editor. After he was the editor-in-chief of car magazines, interior magazines, and car audio magazines, he retired from the company he worked for for about 20 years and became freelance. He is developing a wide range of writing activities centered on car audio, car navigation, and other car electronics related items. He is also involved in music activities as a life work.