A low-frequency speaker system installed in a car allows you to enrich the sound palette with rich bass notes. The music becomes deep and voluminous. The standard sound system does not provide such sound quality, so many owners equip their cars with a bass speaker. This design is intended only to reproduce low frequencies, so the high-frequency component is cut off by crossover filters. The low-frequency speaker is large, so the luggage compartment is usually chosen as a place to place it. The car can be equipped with an industrial system, but most people prefer to make the device themselves. The type of loudspeaker and its diameter determines the size of the low-frequency speaker system.
A homemade subwoofer for a car with your own hands can have a passive or active design. In the first case, it will be a case with a speaker installed. In order to get high-quality sound for a passive speaker, you will need a low-frequency amplifier. The active system is equipped with a built-in amplifier with all filters and adjustments.
Leveling surfaces
Now you can start lining the box. Using a large spatula, apply a thin, even layer of putty on the sides of the structure.
- When the surface is dry, go over it with sandpaper.
- Parts made of plastic also go through a finer mixture.
- The last layer is a primer, which is left to dry for about 24 hours.
- After drying, use fine sandpaper to cover the entire surface of the box.
- Then the column is painted metallic and after a while varnished.
Car subwoofers
As already partially mentioned earlier, subwoofers are used not only for home theaters and music studios. Some drivers who lack music and drive install powerful speakers, speakers and subwoofers in their car in order to listen to music loudly.
If you are one of these people, then you should remember that you can only play loud music during daylight hours, so as not to disturb the people around you. You need to remember not only about yourself.
Properties of homemade models
Many music lovers want to bring their sound to a super powerful level. In this case, the speakers should be equipped with a subwoofer. The sound will become tens of times stronger.
Low frequencies differ from high and mid frequencies in that they do not need to be sounded in stereo. And there is no need to make two speakers in a wideband version.
It is only important to choose:
- Speakers, one of the expensive elements;
- Powerful microcircuits that amplify sound;
- One hundred watt pulse power supply.
All remaining spare parts are of low cost. If you do your work efficiently, you can assemble the column yourself. Homemade devices can work for several years. Only microcircuits, diodes and transistors fail.
It does not matter what shape the column will be: round, square, polyhedral and others.
Installing a car subwoofer
Do-it-yourself subwoofers are placed in the car mainly in the cargo compartment. There is another, less popular option, when this device is attached directly to the driver’s seat. Both positions provide excellent audibility, acoustics and sound quality that will allow you to listen to music in the car without any problems.
Of course, making your own under-seat subwoofers will look better than its counterpart.
The advantage of installing a subwoofer in your car is that it does not require certain additional accessories. You won't even need to remove any components of your car dealership.
There are different types of subwoofers in cars. The most popular are the stealth type. They are distinguished by clear sound, regardless of bass content. So, they are quite organic, as the name suggests.
Installing stealth car subwoofers will not cause you any problems or breakdowns. It is enough just to choose a copy that is suitable in shape and size and secure it tightly in the car using special fasteners.
A DIY subwoofer for your car is simple and very effective.
Selection of components and tools
Before you decide to make a powerful subwoofer for your car or home, you need to prepare the tools for work:
- Screwdriver with bits of different shapes;
- Drills and drill;
- Grinder, wood disc;
- Electric jigsaw with fine teeth.
These tools will help reduce installation time. But you don’t need to put a regular hammer and pliers far away. To solder electronics, you will also need a soldering iron.
Then the material to create the column is purchased:
- Plywood, fiberboard or chipboard;
- Self-tapping screws, nuts, bolts;
- Adhesive for wood, plastic and rubber;
- Sealant;
- Soldering accessories.
All radio elements are selected according to a previously created amplifier circuit. You can add power to the assembly with transistors that will act as final stages.
If the coils will be wound by the craftsmen themselves, you should purchase an enamel wire, a piece of plastic pipe and epoxy glue.
Speaker
The speaker, in fact, is one of the simplest components of a subwoofer. But this goes against the fact that the speaker is the most important part of the entire mechanism.
Speakers are divided into several sections according to different parameters. Firstly, it is worth highlighting the separation of speakers by frequency. Specifically, the subwoofers you need use low-frequency speakers.
Low-frequency speakers with a frequency below 150 Hz are regularly used and are built into almost all subwoofers that can be used to equip a home theater.
Note!
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The speakers are not sold separately, but with special tools that, after installation, create a special acoustic design. This allows you to create high-quality and clear sound that will be pleasant to listen to and will delight you when watching movies or TV series at home.
Speakers aren't just used in home theaters. Also, similar equipment is purchased when setting up music and recording studios, and installed in cars for playing music loudly.
The types of acoustic design may be different, but you still shouldn’t purchase expensive professional equipment. This is done so that if you make a mistake, you won’t feel sorry for a lot of lost funds.
Seek help from specialists and special technical services. Yes, you have to spend a little money, but it’s worth it, because in the end you will get a high-quality subwoofer that will complement your home theater and work properly for a long time.
Mounting and Damping
First, the inside of the box is treated with an anti-resonance component, which includes foil based on a bitumen mixture. To ensure high-quality acoustics, all vibrations inside the box are damped; noise-absorbing sheets are glued to the foil.
Next, all the components are attached to the box body. A headset is attached to the bottom of the structure, on which the subwoofer will stand. They can be bought at any furniture store.
Start of assembly
First, the body is assembled from purchased plywood or other material. The store can make cuts of all parts of the future subwoofer according to the provided dimensions.
Now you can assemble the box:
- The prepared parts are fastened together with self-tapping screws. If everything went well, then they proceed according to plan.
- Mark the points where the speaker and bass reflex will be installed.
- It's a good idea to have a router handy to make cutting the holes easier. If possible, make circles with a compass so that the shapes are even.
- The diameter is measured by the speaker and inverter. The included vacuum cleaner will help get rid of dust.
- The sides of the box are glued together with epoxy resin. Before this, all sides are cleaned so that there are no sharp corners.
- After drying, the structure is further tightened with long self-tapping screws.
As you can see, making a box for a subwoofer is not difficult. The main thing is to have some skills in working with wooden material and carpentry tools.
