Methods to solve the electromagnetic interference of car midfrequency speakers

In car audio systems, electromagnetic interference often leads to sound quality degradation, such as noise, hum or distortion, affecting the performance of car midfrequency speakers.
Cable shielding and routing optimization
Shielded Cables: Using shielded speaker cables is an effective way to reduce electromagnetic interference. The shielding layer is usually composed of conductive materials and can effectively isolate external electromagnetic waves. Choosing high-quality shielded cables and ensuring the shield is well grounded can significantly reduce electromagnetic interference.
Optimize wiring: Proper wiring can reduce interference. Route the audio system's signal cables separately from the car's high-voltage cables. Avoid arranging audio signal cables across or in parallel with other cables to reduce interference to the signal lines. Use cable management tools, such as cable clamps or wire troughs, to keep cables organized and away from sources of interference.
Use electromagnetic interference filter
Power supply filter: Installing a power supply filter for your sound system is an effective measure to reduce electromagnetic interference. Mains filters protect the sound system from external noise by filtering out high-frequency interference signals from the power supply. Choosing the right filter type and ensuring that its current and voltage ratings match the system can significantly improve the stability of your sound system.
Signal filter: Installing a signal filter on the signal path of the sound system can reduce interference from external equipment. These filters can effectively eliminate high-frequency noise in signals and improve the clarity and stability of audio signals.