1. Cables with different functions cannot be mixed at will, for example, audio cables cannot be used instead of coaxial cables;

2. Do not bend the AV cable when using it, try to keep it away from the power supply;

3. The AV cable should be as short as possible under the premise that it is too long. If it is too long, it will only increase the signal loss;

4. The size of the speaker wire should be selected according to the sound power. If it is too small, the signal transmission will be delayed, and the speaker cannot produce good sound; if it is too large, the signal loss will increase, the power amplifier burden will be heavier, and the speaker will not produce good sound;

5. The AV cable should be firmly connected to the outside. If the contact is poor (such as collapse, etc.), it will cause sound and even cause parts to burn;

6. After the AV cable is used for a period of time, the metal terminals and metal cores may be oxidized (ie "aging"), which will affect the sound effect. It should be replaced according to the actual situation. Conference audio manufacturer