Many consumers to buy the home theater equipment, components and systems collocation didn't have a problem, listen to the sound environment is also good, but always appreciate when there are noise. In fact, most of these miscellaneous sound clutter interference from the power sector. Home theater equipment is relatively "temperamental" products, so best to configure the power supply voltage regulator, the power cord to separate all the way at the same time, in order to avoid the interference of other high-power electrical appliances. Separate from the power master switch with 2-2.5 mm2 sheath line goes to the cabinet, all AV equipment utilization in here. If not go line alone, when washing machine repeatedly suspended the disturbance, wait a high-power microwave interference produces sound. Other electronic energy-saving lamps, the inverse change will radiate high-frequency pulse ?