1. Line connection between amplifier and audio <br> Line connection between amplifier and speaker: The signal line of amplifier should use balance line as much as possible. If there are multiple amplifiers in the system, it is better to use signal amplification splitter to separate A sufficient number of signal lines that are not attenuated are supplied to each amplifier separately, which reduces system noise, reduces hazards, and improves signal-to-noise ratio. At the same time, we must pay attention to the quality of the speaker cable and the connection of the wire and the wire. Try to use a thicker and shorter copper-only speaker cable. When connecting, you must also pay attention to distinguishing the positive and negative poles and avoiding short circuits, especially the professional four-core or four-core. The above speaker plugs, the few terminals inside are very small, must pay attention when wiring.
2. Power matching <br> Generally speaking, the power of the power amplifier is greater than the power of the speaker. Under normal circumstances, the power of the power amplifier is more than 20% higher than the power of the speaker. When a small power amplifier is used to push the power speaker, the power amplifier is easily overloaded. This produces a current that is harmful to the speaker, and the speaker unit is easily damaged.
Three. Impedance matching
At present, the power amplifiers used in professional speaker systems are generally fixed resistance. Generally, the power is placed at 4Ω--8Ω. Most audiophiles like to use one amplifier to push more than 2 speakers. At this time, pay attention to the impedance of the speaker. The impedance will decrease when the speakers are connected in parallel. If it is lower than 2 Ω, the power amplifier is easily damaged. This approximate short circuit operation should be avoided.
4. There are sometimes many transfer switches behind the amplifier.
Mono working mode, stereo working mode, bridge working mode; there are level adjustment switches, signal frequency switching switches, etc., we must pay attention to see these switches when using, adjust the amplifier to the correct or The working state that you want, otherwise it may cause unpredictable malfunction.
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