Adopting 2 of TPA3116D2 digital amplifier chips: one is power amplification of the left and right channels, another one is connected with the NE5532 front bridge to drive the subwoofer, which has the characteristics of small size, high efficiency, and high power.
Complete Capacitance Design: 50W*2+100W 2.1 channels(left/right channel and subwoofer channel), high efficiency and low-heat. It is powered by DC 12-24V, wide input voltage. User can adjust the volume by themselves easily.
Notice: Must be powered by DC power(DC12-24V), it's better to use high-performance switch power. Just connect the power supply and loudspeaker box, enjoy pure digital music. Don't use any transformer.