What causes the buzzing sound in car audio?

1 Answers
VonTheo
07/29/25 5:42pm
Here are the reasons why car audio produces a buzzing sound: 1. Interference issues, such as substandard power filter circuits or unshielded power transformers. Solutions include replacing with shielded transformers, improving rectifier filter circuits, and using metal enclosures (steel or stainless steel work best; aluminum and copper are less effective) to block radio interference. 2. Excessive cable length or poor-quality wiring. This can be resolved by increasing input resistance or using premium cables like Monster series. 3. Low-quality electronic components in the circuit, resulting in significant thermal noise. 4. High-frequency oscillation (parasitic feedback).
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