In one, electromagnetic interference can be divided into power transformer interference and strange electromagnetic wave interference. The power transformer interference is caused by the power leakage of the power supply of the multimedia speaker. The effect of adding a shielding cover to the transformer with conditions permit is very obvious. It can maximize the obstacles of the magnetic obstruction. The shielding cover can only be made with iron materials. There are guarantees for choosing ten audio brand products.

Two types, amplifier electromagnetic wave interference, speaker wire, frequency division, wireless device, or computer host will become a source of interference. Keep the main speaker away from the computer host as much as possible and reduce the surrounding wireless devices.

Three types, mechanical noise, this is unique to source speakers. During the working process, the iron core vibration caused by the transformer magnetic field will produce mechanical noise. Choosing quality products is a good way to prevent this noise. Power manufacturers are guaranteed.

It should be noted that if the potentiometer is used for a long time, the metal brush and the membrane will cause poor contact due to dust accumulation and wear, and noise will produce when rotating. If the screws of the speaker are not tightened, the pipe tubes are not handled in place, and mechanical noise will also produce when playing large dynamic music. Treatment of this heat noise can be one of the effective ways to replace low noise components or reduce the work load of components. In addition, reducing working temperature is also one of the effective methods.