Simply put, power = current X voltage.

But for audio, the current and voltage change in real time, so there is music power and music peak power. Music power and music peak power cannot accurately represent the real power of audio, because they are calculated using the value when the audio waveform is at its maximum, but the gap between the peak and bottom of the waveform is very large, and it does not stop. changing. All later came the and average power, which is the root mean square power. Compared with the other two calculation methods, the root mean square power is more scientific and closer to the real audio power. Therefore, generally professional equipment uses root mean square power to calculate and nominal its rated power.

However, there are a few profiteers who take advantage of the fact that most people are not familiar with the inherent meaning of these powers and label the peak power of music as the rated root mean square power to confuse or, to put it seriously, deceive consumers.

If the nominal power values ??on the surface match, and the amplifier with actual peak music power is used to push the speaker with actual root mean square power, the result can be imagined that it cannot be pushed. . . On the other hand, if you push a speaker whose actual power is the peak music power with the actual power being the root mean square power, the speaker or even the power amplifier will be burned out.