Connecting a passive subwoofer

The entire installation will take at least 1-3 hours, it all depends on the driver’s experience and the brand of the car itself. The most difficult stage is laying the power cable to the amplifier. Since installation is usually carried out in the trunk, all wires will have to be routed through the interior to the battery. Therefore, before starting all work, it is necessary to remove the terminals from the battery, otherwise a short circuit may occur.

The subwoofer installation looks like this:

1. First you need to find a technological hole in the car for laying the cable. It is usually closed with a special plug that must be removed. On domestically produced cars there may be no hole, then you will have to make it yourself using a drill. After installation is complete, it is better to seal the hole with sealant. And also insert an additional piece of hose into the hole to avoid chafing.
2. In the space under the hood, the wiring can be closed in a standard harness for output to the cabin. Therefore, in some areas it may be necessary to partially remove it and apply thresholds. It may also be necessary to remove the trim in certain areas. Make sure that the wires do not get pinched or kinks appear. Do not forget to return all facing elements to their place after finishing the work.
3. To access the trunk, you will have to find a hole in the body, or make it yourself. Do not forget that devices must be connected with correct polarity.
4. Now you need to connect the amplifier to the radio. To do this, take the “tulip” wires that usually come with the kit, as well as the wire that provides power to the subwoofer. If you need to dismantle the radio, use special keys, or a knife or a screwdriver of a suitable size.
5. Connect the “tulip” wires to the connectors according to the colors. If you want the radio to turn on at the same time as the subwoofer, use the corresponding positive wire.
6. Now you can pass the wires and cable through the interior and connect the “tulip” to the amplifier.
7. If the power wire is suitable for the radio, it should also be connected to the amplifier so that two devices can turn on simultaneously. To do this, find the terminal and connect it to the power cable of the radio.
8. After this, you can connect the subwoofer to the amplifier. If you need to install a two-channel amplifier, connect both channels to a power distribution device.

In a normal situation, you do not need to install a capacitor, but if the power of your amplifier is more than 400 W, then connecting this part is necessary. You can choose the trunk or engine compartment as the location.

If you connect it directly to the battery, a huge amount of energy will be wasted. This will drain the battery quickly. If you drive your car short distances, you will have to recharge the battery frequently.

How to connect an active subwoofer

The most common way to connect an active subwoofer is as follows.

1. Use power and signal wires for installation. Connect the positive power wire with a large cross-section to the “+” sign on the battery.
2. Then a fuse should be installed along the power circuit to protect the equipment from possible overloads and short circuits. As a location, it is better to choose an area of ​​the engine compartment as close as possible to the battery. In this situation, it is easy to provide quick and free access to it.
3. The negative wire should be securely connected to the car body using the nearest point. The result should be a connection between the GND subwoofer and the body ground with a “-” sign.
4. If there are separate connectors on the radio, then connecting with an active subwoofer will be easier. In this case, you only need to lay the coaxial cable in the screen with the appropriate connector. On one side it will approach the SubOut output of the radio, and on the other it will connect to the Lineln of the subwoofer.

Connecting a subwoofer to a radio without a line output

In some situations, the car owner may be faced with the fact that his standard device does not have a linear output for connecting to a passive or active amplifier. In this case, you should find high-level inputs on the device; it is also possible to send a signal from the outputs to them.

To connect to such inputs, ordinary speaker wires are used. Just be sure to ensure the correct polarity of the connection. If the device does not have such inputs, then as a solution you can purchase a high-level adapter, which is a signal level converter. This part is connected to the output of the radio, and a linear signal for the amplifier is taken from the adapter. Depending on the type of adapter selected, you can adjust the signal level by adjusting it to remove distortion.

Connecting a subwoofer from a computer to a radio

Sometimes the driver is not satisfied with the sound quality in the car, then he has to look for ways to improve it. A computer subwoofer is often used for this. The device can be connected in two ways: using power supply via 12/220V, or through the necessary contacts (+12V) on the amplifier board. If you have experience in radio engineering, you can figure out the power supply using a tester and send an audio signal to the subwoofer input. To do this, you will have to take it from the linear output of the radio using a long shielded cable.

Crossover connection

Using a crossover, you can divide frequencies into ranges, that is, filter them. This is especially useful for speakers, which are popularly called “tweeters”. Without a frequency filter, signals from the entire frequency range (from low frequencies to high frequencies) are supplied to the speaker heads, and the quality of the music becomes worse. There are crossovers of active and passive types, as well as one- and two-way ones.

When connecting new devices to the car, you must follow safety precautions. Disconnect the battery terminals to de-energize the equipment, use seals and electrical tape to ensure a secure connection, and monitor the quality of the wires. These recommendations will help make the sound in the car better, and will not allow you to doubt fire safety.

Connecting a subwoofer

The procedure for connecting a subwoofer to a computer depends on its type. Below are several instructions for connecting different types of this equipment.

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Active

Connecting an active subwoofer (SVEN, BBK or any other) to a computer or laptop is done as follows:

1. Typically used as connecting components for an acoustic system. tulip cable, equipped with plugs. Most often it comes included.

   

2. The computer must be disconnected from the network .
3. 3.5 mm Jack speaker plugs must be inserted into the corresponding connectors on the system unit . Typically, connectors and plugs are color-matched to make wiring easier.
4. Next, you should insert one end of the “tulip” cable into the corresponding socket of the subwoofer, and the other into the ports of the speaker system , or the analog panel located on the power supply.
5. Connect to network speaker system and PC and check the sound.

   

In some cases, the sub is connected to an amplifier, but this increases the workload on the system. You should also remember that when connected to the speaker ports, low audio frequencies will sound in parallel.

Passive

To connect a passive subwoofer, you need to do the following:

1. Disconnect the computer from the network and prepare the speakers and receiver.
2. Using an speaker cable, you need to connect the sub and amplifier .
3. Then, using an antenna cable , you need to connect the subwoofer to the analog panel.
4. Next, you need to connect the receiver to the system unit.
5. Enable devices to the network and check the sound.

   

Automotive

Since the car subwoofer is small in size, it can be used with a home PC. To do this you will need:

• passive car subwoofer ;
• amplifier for it;
• computer power supply .

To connect a car subwoofer to a computer or laptop, you need to do the following:

1. Must be taken from the power supply four yellow cables and combine them into one wire, thereby creating a “plus” for the amplifier.

   

2. From there take 4-5 black wires And one green and combine them in a similar way, making a “minus”.

   

3. To make the twists look more compact, it is advisable to make them 2 separate wireswrapped with electrical tape.

   

4. On the amplifier between the ports "Minus" and "Remote" you need to install a separate wire as a jumper.

   

5. Then the wires prepared in the previous steps are connected to ports “Minus” and “Plus”.

   

6. Further required connect speakers to the amplifier using 3.5 mm jack and tulip cables.

   

7. Subwoofer cable connects to the connector Output on the speakers.

   

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This method also allows you to connect a car subwoofer to a home theater. However, it is worth noting that this method can damage the subwoofer if the user does not have the necessary skills.

Multi-channel system

This system allows you to get more beautiful sound, since it is divided into two or more channels. Before connecting it, you should make sure that the computer's sound card can withstand such a load. If connection is possible, it will have 5 connectors. The procedure is as follows:

• two front speakers connect to the green connector on the adjustment module using a standard mini-jack cable;

  

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• the rear speakers are connected in a similar way to the black connector;
• the subwoofer together with the central speaker is connected to an orange or pink connector;
• then required connect all components to a computer using the audio outputs of the sound card;

  

• then turn on the computer and install the multi-channel audio system driver on it.