ITEM NAME:TPA3116D2 Dual-channel Stereo Audio Digital Power Amplifier Board DIY Kit #gib Store Home Promotion Hot Item Add to Fav.Amplifier chip model: TPA3116D2 1. - The module uses a large-capacity filter capacitor and a freewheeling protection diode to improve reliability. - Dual channel. 1 X Power Amplifier Board. - Efficient Class D operation: greater than 90% power efficiency and lower power loss.