With the popularity of automobiles, car audiophiles have increased. The car subwoofer has also become a necessary equipment for fashion. Often on the road, you can hear the enthusiasts while driving, while driving the sound, the bass is like a cannon, it is eye-catching. The subwoofer connection is in a high current and high power working state, and the failure rate is correspondingly high. The following answers are based on the questions that users often encounter.
1. Why is the car subwoofer murmur?
A: First of all, you should check whether the various cables are in good contact. In particular, the signal cables must be checked. Also check whether the power supply voltage is normal. If there are no problems, the most likely causes are: 1. There is a problem with the speakers; 2. The subwoofer There are components in the circuit board that are soldered.
2. Can I change the 24V car subwoofer to 12V?
A: The 24V vehicle electrical appliance is designed for the battery voltage on the car. The internal power supply of the 12V power supply is only a 24V to 12V circuit. Just disconnect the amplifier and change the power supply inside to 12V.
3. How to connect the car subwoofer to the computer? Must we have 12V voltage to let it sing? Can you be bigger?
A: The car subwoofer is a 12V working power supply. The maximum working voltage is 13.8V. If this working voltage is exceeded, the car subwoofer will be over-voltage damaged. The damaged place has the switching power supply of the car subwoofer and the power amplifier rear stage. Car subwoofers generally have a power of 100W or more. If you want to work with 220V AC, the transformer used should exceed 200W; if the power of the transformer is small, it will not bring the car subwoofer, and it is easy to burn the transformer. The output voltage of the transformer is about 6~9V. After this rectification and filtering, the voltage will not exceed 12.8V, and there is no need for a voltage regulator circuit. You can go to the place where you buy the transformer and the boss says that you want the transformer to function. Generally, you will design the power and output of the transformer. The voltage meets the requirements of the car subwoofer.
4. Can the computer directly connect the car to the subwoofer? Is there any power and audio input to be transformed?
A: The transformer can be bought, but the subwoofer must be driven by the amplifier, and it is a special amplifier for the subwoofer. Without the subwoofer dedicated amplifier, if the ordinary amplifier is used instead, the bass effect can not be released. You remove the car amplifier and use it with the subwoofer. The computer stereo plug is output to the power amplifier, the power amplifier is connected to the speaker, and the power is turned on. The transformer should be rectified and filtered, and the rectifier bridge can be used for finishing. The filter capacitor should not be less than 2500 microfarads, otherwise there will be current sound. It is best to use 24V for the capacitor withstand voltage.
5. Can the power of the car subwoofer be connected to the computer power supply? Are there any side effects?
A: No, the car subwoofer has a large current and the computer stability is poor.
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