Compact Digital Power Amplifier Board 2.1 Channel 100W×2+200W For Home Audio
Applicable speakers: left and right channels, support 3-8 ohms, speakers within 100W; subwoofer supports 2-8 ohms, speakers within 200W. Amplifier chip: 2 TI original TPA3221. Number of channels: 2.1, left channel + right channel + subwoofer.