ITEM NAME:TPA3116D2 50Wx2 High Power Digital Audio Music Amplifier Board Amplificador #gib Store Home Promotion Hot Item Add to Fav.TPA3116D2 50Wx2 High Power Digital Audio Music Amplifier Board Stereo Dual Channel Speaker Amplificador Module. Chip type: TPA3116D2. Output power: 50Wx2. 1 x Digital Audio Music Amplifier Board. Energy efficiency: > 90%.