配置特性：

BM系列四通道功放设计数码显示屏，造型美观大方，超厚的铝合金把手，结构紧固耐用，功放具有开机延时，过载，过温，短路，负载保护等完善的保护电路，后背装有限幅开关，接地开关，桥接开关，采用大面积PCB板，SMD的生产技术，精良的元件。高效能自动控制风扇，让风扇噪音减至最低，达到最达散热效果。

Configuration feature:. BM series four-channel power amplifier is designed with digital display screen, beautiful and elegant appearance, super-thick aluminum alloy handle, firm and durable structure. The power amplifier has perfect protection circuits such as boot delay, overload, overtemperature, short circuit, load protection, etc. The back is equipped with limiting switch, grounding switch, bridge switch, using large area PCB board, SMD production technology, excellent components. High-performance automatic control fan, so that the fan noise to a minimum, to achieve the maximum cooling effect.