Power amplifiers are usually divided into full - frequency amplifier and bass - specific amplifier. Bass special power amplifier in the signal frequency of 250Hz below the distortion can be guaranteed to be less than 1%. However, when the frequency exceeds 250Hz, the distortion rate skyrocketed and the output power dropped sharply. So don't try to push midrange and tweeter speakers with a bass amplifier.
The full - band power amplifier usually adopts class AB amplifier design, and the power loss is relatively large. So filter out the signal of the low frequency band, only push the high frequency loudspeaker will be the best choice to save power and ensure sound quality.
As long as you master the above equipment matching principles, you can basically ensure that the loudspeaker and power amplifier out of the safe state, and can restore the pure and no distortion of the sound.