The parameter of power is actually a basic parameter to measure the performance of a multimedia speaker, but because of the intentional avoidance of the manufacturer, in the description of many products, the power has become a meaningless parameter.
The power of multimedia speakers is mainly as follows:
1. Rated output power (RMS): RMS power can be said to be the only truly meaningful of all power labeling methods. It refers to the maximum power that the power amplifier circuit can continuously output within the rated distortion range. Also called "effective power". The power we referred to in the previous discussion of the power amplifier circuit generally refers to the rated output power.
2. Music output power (MPO): refers to the instantaneous maximum output power of the power amplifier circuit when the distortion does not exceed the specified range.
3. Peak music output power (PMPO): refers to the instantaneous maximum output power of the power amplifier without considering distortion.
The latter two powers are actually meaningless, because their so-called "instantaneous" is often a few milliseconds that can't be heard at all. However, many manufacturers are in the mentality of wanting to increase the power of their products, and are often happy to use these two labels, especially PMPO power. Most of the speakers such as hundreds of watts that are common on the market are like this, and some speakers even mark their power as 2000 watts!
This is really a joke! The true 2000-watt power amplifier and speakers are enough for everyone in the community you live to hear the music of your home. The real 300-watt speakers are also enough to make the whole building noisy. Is it a small desktop speaker? Can it be done? No wonder PMPO power is dubbed as "JS power" by enthusiasts.
According to general practice, the ratio between PMPO power and RMS power is generally 5-8:1, that is to say, the speaker that claims to be 300W is actually just an ordinary speaker with an output power of about 30W!
Really famous brands will not use PMPO power. If the product is really good, why is it necessary to use this method of covering eyes and ears? So, seeing the PMPO logo at least shows that manufacturers are not confident enough about their products.
