ITEM NAME:3X(50Wx2 TPA3116D2 Digital Power Amplifier Board XL6019E1 Dual Channel AutoG2Q7) ☆★ Product Details ★☆ 3X(50Wx2 TPA3116D2 Digital Power Amplifier Board XL6019E1 Dual Channel AutoG2Q7) 3X(The on-board booster circuit has a built-in XL6019E1 dual booster chip, which automatically boosts to 24V for the power amplifier board when the power supply is 12-24V, achieving no distortion. Two different audio interfaces can be used to match the wider and more convenient. Name: Automatic boost power amplifier board Model: XH-M643 Chip: TPA3116D2 Input Voltage: DC 12-24V Output Power: 50W*2 Number of Channels: Dual Channels Size: 99 * 64 * 20 mm Weigh:90g Color: green Material: metal + pc Product Description: 1: Connect the power input terminal to the DC 12-24V power supply. 2: Connect the audio input to the audio source, such as MP3, mobile phone, computer, etc. It can also be connected to the preamplifier board 3: Connect the two audio outputs to two speakers separately. It is recommended to connect two professional stage speakers of 100W or more in order to exert its effect. 4: It can be played by turning on the power and sound source, and the volume knob can adjust the volume. Package: 1pc Digital Audio Amplifier Board)