这是一款使用直流单电源12-24V供电，使用T公司TPA3116D2高性能数字功放芯片为核心，并联桥接低音声道功率放大，支持100W(低音声道)输出。外接音源输入接口，带前级放大，低音分频处理:低音音量、低音频率、开关/总音量，2个调整电位器。宽工作电压，省电型设计，效率高达90%以上。可使用性能良好的开关电源、笔记本电脑开关电源。还可以使用充电瓶，或车载电源等等，
板子是已焊接好测试好的成品板，按图接好喇叭箱，接上合适的电源，正确接上音源输入，即可使用。

This is a product that uses a DC single power supply of 12-24V, with T company's TPA3116D2 high-performance digital amplifier chip as the core, and is connected to a bridge for low-frequency channel power amplification, supporting 100W (low-frequency channel) output. External audio input interface, with preamplifier, bass division processing: bass volume, bass frequency, switch/total volume, 2 adjustable potentiometers. Wide operating voltage, energy-saving design, with an efficiency of over 90%. Can use high-performance switching power supplies and laptop switching power supplies. You can also use charging bottles, car power supplies, and so on,
The board is a finished board that has been welded and tested. Connect the speaker box according to the diagram, connect the appropriate power supply, and correctly connect the audio input to use it.