[TPA3255 HiFi Chip] The XY-AS21HPA Bluetooth Amplifier Board employs the original imported TPA3255 HiFi amplifier chip with PurePath technology for ultra-high resolution, ultra-low distortion and high-fidelity sound quality. It supports a 2.1 -channel configuration, including left channel and right channel output. The left and right channels each deliver 300W output power, creating an immersive sound experience