The power equipment that result puts and sound box and policy loudness and place apply occasion also have certain relation. Below certain policy loudness, the dynamics that should let music signal can get abundant assurance on every device, if power of power amplifier is too big, its gain is set very small, loudness already arrived requirement, but at this moment the gain of power amplifier constrained the dynamic scale of signal.

Therefore, the power amplifier can not be too large; Otherwise, already waste money, will bring loudness and music dynamics can not be coordinated and the speaker load is too much trouble. According to the past experience, general speech, music amplification venues and large dynamic venues such as the disco are different. Have signal of general spread sound place is rugged small, do not demand result put for a long time or supply very big current very quickly to sound box, so the power that result puts power should compare the requirement strong and powerful big dynamic spread sound place wants small.Other, so-called "power storage" also should aim at the character of sound box, noteworthy is, the choice of power put must be decided by sound box, should not have "power storage" concept to equip power put. In other words, below certain policy loudness, sound box can compare program value a few bigger, in order to prepare different use, and the power that result puts should be severe by sound box resolution, without too big flexibility.