The power matching between power amplifiers and speakers is generally divided into three forms: the power of the power amplifier is greater than that of the speaker; The power of the amplifier is basically equal to the power of the speaker; The power of the amplifier is less than that of the speaker. In theory, the rated power of a speaker should be equal to the rated output power of an amplifier. However, when this equation cannot be satisfied, it is advisable to choose a high-power amplifier.

The form where the power of the amplifier is greater than that of the speaker is quite common. Due to the high power of the amplifier, listening to music can feel strong and powerful at low frequencies. At the same time, they can handle the amplifier volume correctly to avoid burning out the speaker. The power of the amplifier is basically the same as that of the speaker, which should be an ideal matching method for ordinary users. Due to the fact that the power of the amplifier is basically the same as that of the speaker, the timbre of each frequency band of the speaker will be accurately reflected when listening to music. Under normal use (with not too much high-frequency and low-frequency boost, and no feedback noise when singing karaoke), the speaker is generally not easily damaged. The power of the amplifier may sometimes be lower than that of the speaker. If the speaker is a 100W × 8 Ω amplifier, a 70W × 2/8 Ω amplifier can be used. The advantage of this configuration is that for people who have not been in contact with audio equipment for a long time, they will not damage the equipment due to occasional operational errors. Of course, this configuration may feel slightly soft at low frequencies for audiophiles.

From a technical perspective, the elements for matching power amplifiers with speakers include power matching, impedance matching, damping coefficient matching, sensitivity matching, and timbre matching.