XH-A232 TPA3110 30W+30W 2.0 Digital Audio Power Amplifier Board Chip / Kit TPA3110 XH-A232 30W Modul Audio Amplifier Class D TPA 3110 Stereo / XH A232 Power Amplifier Board Class D 2 Channel Digital Stereo Amplifier Board DC 8 Volt To 20 Volt 8V To 20V