Home » PAM8403 Class D power Amplifier Board module 5V 3W * 2 Audio Stereo AMP Volume Control Sound Board amplifier for speakers PAM8403 Class D power Amplifier Board module 5V 3W * 2 Audio Stereo AMP Volume Control Sound Board amplifier for speakers PAM8403 Class D power Amplifier Board module 5V 3W * 2 Audio Stereo AMP Volume Control Sound Board amplifier for speakers. Sale price : $0.71 Category : Tools