1. Thoroughly clean the contact once every six months

As we all know, soon after metal is exposed to the air, its surface will be oxidized, lose luster and become dull. Even though the surface of the signal cable plug is not easy to oxidize after gold plating and has close contact with the body plug, it will still be oxidized to a certain extent to cause poor contact after a long time, so it should be cleaned every six months at most. As long as the cotton is dipped in alcohol to smear the contact point, after this heavy work, the contact point can be easily contacted, and the sound will be clear and transparent. Especially, most of the equipment around the speakers in the entertainment places are locked in the cabinet, so the heat dissipation and cleaning environment are not ideal. It is recommended to regularly remove the dust and clean the nodes of the exhaust fan every month.

2. Clean the CD player CD player

Obviously, the compact disc player has only a small area, but it can only read the marks on the CD. Therefore, as long as there is a little dust on the compact disc player, it can affect the accuracy of the readout signal. Although most CD players have sealed bodies, don't forget that there is open space for dust to enter during the process of frequently releasing and loading CDs. After a period of time, there must be more or less dust on the surface of the phonograph head. At this time, you need to unscrew the cover screws, open the cover and directly use cotton swab to light alcohol for cleaning. Although there are various kinds of CD cleaning on the market, you spent tens of yuan. Those so-called CD cleaning may only rely on a row of brushes to remove dust or use suede to remove dust by rolling. The effect is not as thorough as using cotton sticks directly. When your CD player, which has not been washed for a long time, is cleaned, it will feel like a layer of yarn is lifted when you listen again. The high-frequency reply is clear and the details are more pleasant. This process of cleaning the cartridge should be done once a year.

3. Try to avoid machine folding

There is no way to stack the equipment due to environmental problems. When there is a precondition, the main CD sources and sound reinforcement departments should be placed independently as far as possible. Because overlapping placement will lead to harmonic vibration and affect the machine. When the loudspeaker plays music, the shock air makes the equipment follow the shock. When the two machines overlap, they will transmit harmonic vibration to each other, making the micro information in the music trance, and through the transmission of each frequency band, it will cause a sound pollution. For example, one of them is a CD player, and the continuous rotation of the motor increases the harmonic amplitude when playing the disc itself, which will have a greater impact. Therefore, the equipment shall be placed independently on the stable rack.

4. Keep a gap between the split power supply and the host mono rear stage

Nowadays, even many middle priced pre stage units have a box sized split power supply, which simply divides the fire cow and the host into two parts. The advantage is naturally that it can isolate the resonance between the parts in the machine and the fire cow. If the split power supply is placed next to the front stage, it will be meaningless. Leave the front stage at once. If the split power supply is placed on a rack on another floor, you can hear that the overall isolation has improved in real time, and the audio and video will be more correct. The same is true for the rear stage of mono. The two pieces of equipment with preconditions are placed separately to ensure that they are beneficial and harmless.