Answer
Speakers may produce a buzzing sound due to several factors:
- Ground Loop Issues: Occur when multiple devices are grounded at different points, creating a loop that introduces noise.
- Electromagnetic Interference (EMI): Nearby electronic devices, such as cell phones or routers, can emit interference affecting audio equipment.
- Faulty or Poor-Quality Cables: Damaged or low-quality cables may lack proper shielding, leading to noise.
- Loose Connections: Unsecured or dirty connections can cause intermittent buzzing.
- Electrical Interference: Devices sharing the same power source can introduce noise into the audio system.
To mitigate these issues, consider using a ground loop isolator, relocating electronic devices away from audio equipment, employing shielded cables, ensuring all connections are secure and clean, and plugging audio equipment into a separate power outlet. If problems persist, consulting an audio professional or electrician is advisable.
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https://www.electricalfaultsfixed.com/blog/buzzing-sound-speakers-10-reasons-and-fixes