This section describes various AC power problems and products that can help you cope with them. There are links to pages that give complete information on all products mentioned.
Mild ones can cause pops and clicks in the audio.
Severe ones, sometimes caused by nearby lightning strikes, can destroy equipment. It invariably happens at the most inconvenient times. It can be drastically reduced through use of low-pass filtering. However, keep in mind that not all EMI enters audio equipment through the AC line. Other precautions, such as using shielded audio cables with clean connector contacts, are also necessary.