In recent years, with the development of the car audio industry, the use of car audio capacitor
s has become increasingly popular. So what is the capacitor in the audio system? 1. It can reduce the noise caused by poor power supply of the head and power amplifier. 2. When playing a large dynamic program source, reduce the nonlinear distortion of the power amplifier caused by the sudden voltage drop. 3. In a good car audio system (the effect is not obvious for low-end car audio systems), due to the energy storage and instantaneous charging and discharging characteristics of capacitors, the mid-range part can be full; the high-frequency part has more sound permeability Good, the sound is brighter; make the bass part more full and thick. It plays an irreplaceable role in improving the sound quality of car audio. Countermeasures to deal with noise are generally used to deal with noise components, such as car audio capacitors (especially effective in dealing with high-frequency noise), flow loops (inductors), filters, grounding wires, etc., to deal with the noise generated by the ignition system. 1. Check whether the anode of the ignition coil is installed on the capacitor. If the capacity is reduced, the platinum contact is easy to ablate and cause interference sparks. You need to replace the O, 5UF/400V non-polar capacitor, and check whether the ignition high-voltage wire uses carbon fine wire. The metal wire type is prone to interference, because the radio part has serious interference, so it must be replaced. You can increase the local resistance of the resistance to reduce the spark noise. The method is to use a 1 megohm resistor in series with the ignition coil output main high-voltage line to reduce interference. 2. Elimination of motor noise. Firstly, keep the equipment and signal wires of the car audio modification away from the motor and motor wires. One non-polar capacitor can be connected in parallel to the two ends of the motor, or two inductors can be connected in series in the positive and negative wires of the motor. , And then use two non-polar capacitors to connect to the positive and negative lines of the motor, and the other end is grounded to form a filter circuit, which is used to absorb the sparks of the motor carbon brush to reduce noise. 3. For the noise generated by electric horns without relays, there are mainly the following ways to eliminate them: A. Connect a capacitor in parallel to the ground of one of the horn terminals. B. Connect an inductor in series to the terminal of one of the horns, and then connect a capacitor in parallel to the ground. C. Use methods on the terminals of the two speakers respectively. D. Connect a capacitor in parallel between the horn button contacts of the steering wheel. 4. For the noise generated by the electric horn with relay, the main ways to eliminate the noise are as follows: A. The electric horn bracket should be in good contact with the body. B. Connect a capacitor in parallel at both ends of the relay contact, or connect a capacitor in parallel to the ground at both ends of the contact. 5. Poor grounding will produce noise. If the head cover is not firmly grounded, the entire head cover will become an antenna, radiating the noise generated by various parts of the car to the surrounding space, and introducing the audio system from the antenna and various circuits. When installing the connecting line between the front cover and the body, the paint, oil stains, and dirt on the joints must be completely eliminated. There should be a good connection between the engine (engine) and the body, or between the front wheel suspension, the body, and the exhaust pipe and the body. 6. Power cord noise suppression: In order to effectively eliminate the noise generated by the power cord, the circulator should be installed near the power amplifier. If there are multiple power amplifiers, one should be installed near each power amplifier, because noise can be transmitted from one power amplifier to another, so that a single current loop will fail. 7. Suppression of incoming noise from the signal line (RCA): The signal line should be far away from the power line and installed on both sides of the vehicle body separately from the power line, so as to avoid the possibility of interference. If the signal line has a double-layer shielding net, the outer shielding net should be connected to the chassis. JMX brand capacitors have provided high-quality high-end capacitors to thousands of customers for nearly 20 years. JMX brand capacitors have become one of the most high-quality and honest capacitor suppliers in China. Sincerely welcome friends from all walks of life to visit Shenmao Capacitors factory for guidance and business negotiation. Capacitor order hotline: 0755-8527 4135, after-sales customer service:, fax: 0755-8527 6135 Learn about capacitor parameters: WWW.JMXCAP.COM
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