Shanshui computer speaker transformer 11 5v three wire 1600ah how to change car audio 20

The power transformer is 220V input, and the double approximate is regarded as 12V) The output of the landscape computer speaker can be modified to make it possible to use it on a single 12V power supply car.

Materials and tools to prepare:

1. Speakers to be transformed.

2. DC 12V wide voltage input, DC plus or minus 12V output DC-DC conversion circuit board (module), power needs to be selected according to the actual situation.

3. A certain number and length of wires.

4. Commonly used tools, including pliers, taper, soldering supplies (soldering iron, tin wire, flux).

Simple Retrofit Process:

1. Disassemble the speaker to be transformed, and mark the location of each wire of the transformer output input.

2. Use tools to remove the EI transformer (or toroidal transformer), and the wire of the transformer is removed from the circuit board, and welding supplies may be required.

3. Connect the three pins of +12V, 0, and -12V output of the DC-DC conversion circuit board (module) to the power input pins of the amplifier board in the speaker with wires.

4. Connect the 12V power input pin and input GND pin of the DC-DC module (marked as 12V input cable and input ground wire) to the outside of the speaker and fix the DC-DC module.

5. Reinstall the screws on the cabinet of the speaker.

6. Put the speaker in the car, connect the main box of the speaker with the satellite speaker, connect the 12V input line with the 12V power supply line on the car, and connect the input ground wire with the ground wire on the car.

7. At this point, the renovation work is completed.

Something that needs an idea during the makeover:

1. Pay attention to safety in the process of transformation.

2. Need to be bold and careful.

3. The most important point is that you need a certain electronic technology foundation!

It can't be changed. Your speaker is dual 12V power supply, while the car only has 12V power supply, and your speaker also has a 9V control voltage. If you change it, you have to change the circuit board, so it is not cost-effective, it is better to buy a car audio directly

It can't be changed. Your speaker is a dual 12V power supply, and the car only has a 12V power supply, and your speaker also has a 9V control voltage.

If Wu He Nai changes the circuit board, it will not be cost-effective, it is better to buy a car stereo directly.

It's about speaker power. OK.

The voltage is more than ten times worse, do you say it can be used?

Car audio is designed for the environment on the car, if you want to change to computer audio, you should generally pay attention to the following points:

The power supply voltage, the car is generally 12V (small car) and 24V (large car), the computer is only 24V, the power supply on the computer must have enough margin to use, if the power supply is equipped with another power supply, the power supply power should be large enough.

Sound quality requirements, the noise on the car is relatively loud, so the car audio has relatively low noise requirements, if you change to a computer, in a quiet environment, you can feel that the background noise is slightly larger.

Anti-theft problem, car audio often uses anti-theft measures, which need to be matched with the on-board computer system to use. Changing to computer audio requires corresponding cracking and modification before it can be used.

Aesthetic problems, car audio has a special installation position in the car, and a separate chassis is required to change to a computer ring, otherwise it feels like an amateur production, very simple, and not up to grade.

Many car enthusiasts with high audio requirements will modify the audio of their cars, so what should we pay attention to when modifying car audio? It is mainly modified for the main engine, front and rear sound field, power amplifier, woofer, wire, and capacitor.

Composition of the audio modification:

First of all, we need to clarify what the audio modification is to change, and then according to our own requirements, with a set of modification plans suitable for ourselves. Generally speaking, audio modifications are mainly aimed at the following parts:

Main unit, front and rear sound field, power amplifier, woofer, cable, capacitor.

Precautions for audio modification:

1. The first interval of audio modification spans a large area, from hundreds of thousands to hundreds of yuan. It's best to match it reasonably according to your own modification needs and budget.

2. There are many kinds of audio modification content, if you don't understand professional knowledge, then it is very important to listen to the sound room after matching according to the suggestions of the business.

3. Construction is an important part of ensuring the effect of audio modification, after completion, it is necessary to listen again to confirm the modification effect.

4. There is no end to modification, and only what suits you is the best.

The sound modification effect is very important, it must be professionally tested, otherwise it will be worse if the expected effect is not achieved, so don't be afraid of trouble, the preliminary work must be done, and the modification can bring maximum pleasure.

The use of power supply, the general power supply for the car is 12V, you need to use 220V to 12V high-power switching power supply. Everything else is the same.

1. The voltage and positive and negative poles of the power supply, 2. The signal line should be shielded with coaxial cable, 3All terminals are not energized before each bandage.

Pay attention to the power and impedance of the speaker, as well as the problem of high to low power amplifier.

Add a 12V DC power supply.

All the same, there is nothing to dwell on.

Generally, plug in a 12V power supply, I have used it, and the sound is very fierce.

Is it just an AC transformer, if there is no rectifier and voltage stabilizing device can not be used in the car audio, volt AC transformer, if the voltage is higher than volt after rectification, it also has a bad impact on the audio.

First of all, the three wires are dual voltage, 15--0--15 blue is the common ground wire, and the voltage between any red and blue wire is the voltage between the two red wires.

Car stereo should be 12V is not.

The combined audio transformer is AC power, and it has to be rectified and stabilized,,, which is not familiar to you and is not easy to do.

Go to the electrical materials store to buy a 12V switching power supply, there is not much money.

Brother seems to be a man of temperament, then use the power supply on the desktop, after the same power, find out the two on the power supply and the switch wire, and dock it with the wire, and then as long as you see that the fan is turning, you can use it, the voltage of 12v is the yellow line on the top, the pole is the pole, and the black is the negative pole, just buy a second-hand one, 30 yuan.

This kind of audio is generally amplified by integrated circuits, generally 12V power supply 6V is generally rare! If the power amplification circuit of the audio is 12V power supply, it can also work with a 6V power supply, but the listening effect of the sound is not good, and the power amplifier is too big to use!

Inside is a power amplifier board, which is the audio power amplification! The general power supply has 12V and 6V

There are three common secondary outputs of active speakers: 12V, 9V, and 6V

But there are also many loudspeakers whose secondary voltage output is non-standard. For example: Edifier R2000T loudspeaker, the secondary output is:

Therefore, you need to turn on the active speaker and look at the secondary output on the transformer.

It is recommended not to change it, it is easy to break.