High-power active speaker amplifier board, integrated heat dissipation design, using audiophile-grade capacitors and high-grade inductors Newly designed dual TPA3221 2.1-channel amplifier board, suitable for home 2.1-channel system Dual-chip design, one chip is responsible for driving the subwoofer, with a maximum power of 200W/2 ohms, and the other chip is responsible for the left and right channel satellite speakers, with a power of up to 100W*2/4 ohms Built-in QCC3034 Bluetooth module and PCM5102A decoding, supporting Bluetooth 5.1 protocol and LDAC lossless transmission, with a maximum sampling rate of 96K Professional active subwoofer amplifier board structure, compact size, convenient for direct installation on the subwoofer box Model: Dual TPA3221 2.1-channel active speaker amplifier board Output channels: 2.1 channels Amplifier chip: TPA3221 * 2 Frequency response range: 20-20KHZ, subwoofer low pass adjustable range: 40Hz-200Hz Power supply: DC24V-32V Output power: 100W * 2+200W Total harmonic distortion: 0.1% Color:Black Material:PCB Package Contents: 1 * Amplifier Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.