The power amplifier corresponding to non-civil use is professional power amplifier. Stage power amplifier, broadcast power amplifier, and KTV inside the power amplifier and so on are attributed to professional power amplifier. But professional does not equal high quality, professional only corresponds to specific use. If it is general use to do home theater and so do not advocate you to choose these so-called professional amplifier.

The small power work that the family uses is put mostly A kind or A B kind work is put, power already enough satisfied civil equipment and is with ensure distortion to be the top condition. And professional power is put in certain time is to ensure that the power is the top condition. Some bad businesses often use a "professional" word to cheat customers, to seemingly affordable prices to sell customers some high-power stage amplifier, KTV amplifier.

In fact, the top intention of these power amplifiers is to use power and then is the sound quality, most of them are class B power amplifiers, very few pure class A. General customers do not need such high-power amplifier. Audiophile may demand high-power power amplifier, but deploy the high-power power amplifier of these advanced acoustics even if the price is expensive again do not belong to the "professional" field.