Basic Concepts
First, you need to understand what a container is and why it is needed, and what types it comes in. Anyone who has connected a capacitor has encountered this problem. If you decide to connect the container without certain knowledge, then your system will not work correctly, and, accordingly, proper high-quality power will not be provided.
This electrical element consists of two metal plates that are rolled into a tube. A dielectric is laid between them. Externally, it looks like a cylindrical element with two terminals.
Let us list the tasks that are assigned to a capacitor in an electrical circuit:
- Retaining charge for normal voltage.
- Retention of potential charge for a long time.
- In order to eliminate voltage surges, the current value must be within normal limits.
Conclusion
Now you have enough knowledge to go to a specialized store yourself and go through all the procedures: purchases, consultations, connections and settings - on your own. If you are not burdened with financial difficulties, it would be better to purchase an active type device, and then you will not have questions about how to connect a subwoofer to a computer. However, if you want to save money, or the hidden talents of radio electronics have awakened in you, you can safely purchase components at a reasonable price and create a full-fledged speaker system with your own hands. In any case, with a subwoofer you are guaranteed a life with rich bass, a lot of pleasure and the indignation of your neighbors.
Processes that take place in a capacitor
It is known from the laws of physics that oppositely charged particles attract. If they are connected to each other, a discharge will occur. However, if they are not connected, but only brought as close to each other as possible, a greater force of attraction will arise. The capacitor uses this principle. Oppositely charged particles accumulate on the plates, which are separated by a dielectric, but due to the high resistance of the material, an instantaneous discharge does not occur.
Due to the fact that the dielectric allows them to discharge, it is possible to maximize the time during which the plates will remain at a given required voltage.
Each element is manufactured to operate within a specific voltage range. It all depends on the materials of manufacture, as well as on the design of the product. If the potential difference exceeds the maximum permissible, the dielectric will cease to perform its function and the capacitor will fail. Capacity is one of the most important parameters, since the entire design of the device depends on it. It directly depends on how the plates are located, as well as on their sizes.
Setting up or how to make a case
How to properly set up an active subwoofer in a car
In order for a subwoofer speaker to function normally, it is necessary to make a high-quality housing for it. Its further sound depends on the quality of the subwoofer box:
- If the displacement of the box is incorrect, the speaker will not play. It will make sounds similar to wheezing.
- With a flimsy subwoofer box, it will be impossible to achieve clear bass. On the contrary, it will always be difficult to hear.
- It is necessary that the housing has the correct shape, otherwise “standing waves” may form inside it, affecting the sound quality.
Some of the best cases are those that are made to order. The manufacturer needs to provide the dimensions of the speaker or itself. Due to this, all the subtleties and nuances of the device will be taken into account, so the sound will not be primitive.
How to set up a subwoofer yourself
Active subwoofer how to set up
acoustic system Therefore, now we will discuss how you can set up a subwoofer yourself:
You must purchase a special disk. It will allow you to identify shortcomings of the entire speaker system, including the subwoofer itself. A special melody is recorded on this disc, which allows you to hear even minimal defects.
Special disk for setup
- It is necessary to adjust the active subwoofer until the sound of this disc is ideal for the user.
- What exactly is a setting? This is a sequential switching of three buttons: Bass, Tribble, Sub.
As you can see, installing a subwoofer and setting it up in a car can be done easily with your own hands. It should be borne in mind that such a process is impossible without primary preparation. So, initially you should look at photos with a similar theme. Perhaps you will find some instructions on the Internet that will also not be superfluous. A video on this topic will also come in handy. The price of installation and configuration in a car service can vary: installation of an active subwoofer starts from 3,500 rubles.
The need for capacitors in car audio
Short-term voltage surges often occur in a car's audio system. This is due to the fact that the power system is not capable of delivering the required power in a given period of time. This happens when playing music with pronounced bass. This is due to the fact that the consumer resistance for the power supply decreases sharply, due to the long-term opening of the transistors.
Professional audio installers recommend using a capacitor capacitance of at least 60,000 - 65,000 microfarads. For versatility, the formula is often used: 1 Farad of power = 1000 Watts of load.
Preparing the system unit
Before installation, you need to disconnect the system unit from the power supply - remove the network cable and turn off the power supply. Next, you need to remove the side panels of the case - to do this you will need to unscrew the screws on the back (or side) wall of the case. Afterwards the system unit is placed in a horizontal position. If the system already uses a drive and you need to install a more modern model, additionally disconnect the cables from the device and unscrew the mounting screws. These steps are not required when building a new computer. We recommend using an antistatic wrist strap or gloves when installing components.
Connection
Connecting a capacitor to audio equipment is quite easy. It is connected next to the power consumer, the power polarity is straight. That is, the plus must be connected to the plus, and the minus to the minus. Remember that a car is a design solution with its own power supply system and wiring. It is necessary to exclude additional consumers from the circuit, except for audio equipment. To do this you need to install a diode. It is needed to limit the discharge from unnecessary consumers. This electrical element is installed on the positive wire between the power source and the consumer.
How to connect a subwoofer to an amplifier?
In order to connect the subwoofer to the amplifier and car audio system, you will need the following tools:
- Pliers and wire cutters;
- Wires for connecting a subwoofer and amplifier - power and connecting cables, tulips;
- Plastic ties;
- Set of wrenches;
- Knife and insulating materials.
Since the wires will have to be pulled through the interior, in order to avoid chafing of the cable, it is better to use corrugated sleeves, which must be securely fastened to the cable connection points.
Subwoofer and amplifier connection diagram
As a rule, any type of device comes with an accessible diagram for connecting the subwoofer to an amplifier or car radio. For example, for a passive subwoofer:
Or for active:
Depending on the complexity of the model, installation will take from 1 to 3 hours of work.
How to connect a passive subwoofer to an amplifier?
Before installation, the terminals from the battery are removed to avoid short circuits. Afterwards, you should find a technological hole connecting the engine compartment and the interior. As a rule, it is closed with a plug, and on domestic cars it is completely absent. Then it will have to be drilled. If you plan to install the subwoofer in the luggage compartment, a hole is made there too. Since the cable will pass through the entire interior, you will have to remove the trim or door sills - everything is individual. Next, instructions:
- Connect power from the battery to the amplifier in the luggage compartment according to the polarity. The power wire should be inserted into the corrugated sleeve in advance - a hole should be drilled along its diameter. In addition, it must be equipped with a fuse;
- Next, the amplifier wire is connected to the radio. First, its body is dismantled, exposing the wire connections. For connection, tulips are used, which are inserted in accordance with the colors of the connectors;
- To achieve simultaneous activation of the radio and subwoofer, it is necessary to equip the amplifier with a positive wire, which is connected by a terminal to the power cable of the radio;
- The last stage is connecting the amplifier and the subwoofer itself. Before connecting a subwoofer to a two- or four-channel amplifier, you should organically arrange the power inside the trunk or interior and connect each speaker to the appropriate input.
A capacitor is required for an amplifier with a power of more than 400 W. For less powerful models, it may not be used. It is worth remembering that using very powerful amplifiers will quickly drain the battery.
By the way, if you are not satisfied with the models manufactured by foreign and domestic companies, you can make a passive subwoofer yourself.
How to connect an active subwoofer to an amplifier?
Considering the compactness of the system (built-in amplifier and subwoofer), the connection seems simple. However, it is not. Let's look at how to connect an active subwoofer to an amplifier:
- Installation begins by connecting the power wire to the battery directly with a bridge to the positive terminal. The cable cross-section must be large;
- The power cable connection circuit provides a fuse for emergency disconnection of the system from the battery in the event of a short circuit. Mandatory location of the fuse in the engine compartment, next to the battery;
- The negative cable of the amplifier is connected to the car at a convenient point. Thus, the “-” wire is located between the body ground and the subwoofer.
Separate active subwoofer connectors make installation simpler - just lay a coaxial cable and connect its ends to the output of the car radio and sound converter. On the device they are designated SubOut and Lineln, respectively.
How to eliminate additional load on car wiring
Autocapacitors have one serious drawback: the ability to self-discharge. This type of electrical devices is bad for your car battery. Especially if there are a lot of them and it’s cold winter outside. To solve this problem, there are many devices on the market that are connected only when voltage appears at one terminal.
Capacitors from popular companies are equipped with a very convenient function, for example, installing a voltmeter. This is necessary for visual instrumental monitoring of voltage sags.
When connecting to the starting system, be sure to check that there is no voltage on the starting wire when parked. If there is no potential on it, then the car's network will be blocked from the capacitor. It is very easy to perform manual switching yourself. To implement this, you just need to use a relay. The switch can be placed in any place where it is convenient.
Recommendations
Comments 54
the seller said this one was better and when I told him it was for the speaker he told me I understood.
and on macheto 23 neo what is better? installed 3.3. from GU. I don't see any difference yet
Why did the air conditioners burn out? And I didn’t ride for three days. The tweeter works, I tried it without them, but as soon as you connect them, SILENCE!
normal conders. I also used these at one time. And also 250v
Well, thank God) I installed it and it seems to be playing)
Stooges, got everything mixed up
