Speakers to high quality heavy let out all kinds of music, then according to the properties of music signal the peak factor about 10-15 db from the Angle of guarantee the quality of this amplifier should be within the scope of this dynamic will not occur any limiting condition, the maximum output power of the power amplifier should be speaker 5-8 times the rated power, so that although the power configuration of sound quality is very good, But its investment can be large, so this power ratio is generally set at 1 to 2 times the power rating of the speaker unit.
In a few requirements low and the power of investment limited project power put at least equivalent to the rated power of sound box, but want to pay special attention to maintain sound not distortion, too small power configuration doesn't seem to damage the sound box unit, in fact otherwise, too small power is extremely easy to happen overload cutting, produce a large number of harmonics, burn high pitch unit. The general engineering proposal power amplifier power is 1.5 times, and the bass part had better be more than 1.5 times, so as to obtain sufficient sense of power. Extreme sound requirements, such as studio monitors, concert halls, etc., are ideal for twice the power of the speaker.