The number and output power of power amplifier should be put to match the sound module and leave a certain dynamic headroom to avoid clipping to put the protection of the sound module and the other back-up unit should be deployed .
功率放大器的数量和输出功率应和放音单元相匹配并留有一定动态余量,避免削波,以保护放音单元,另应配置一定的备用单元。