ITEM NAME:12V-24V TPA3116 D2 120W+120W Dual-channel Stereo Digital Audio Power Amplif-PN3C Description: Onboard front-facing IC to improve the input sensitivity, high-definition sound quality. Name: TPA3116D2 Digital Amplifier Board Chip type: TPA3116D2 Working voltage: DC12-26V Output power: 120*2W MAX DC12V, 2*50W DC24V, 2*120W Signal to noise ratio: 100db Channel: Dual channel stereo Size; As the picture show Package Contents: 1x Digital Power audio amplifier board.DC24V, 2 120W. Channel: Dual channel stereo. 1x Digital Power audio amplifier board. Onboard front-facing IC to improve the input sensitivity, high-definition sound quality. Output power: 120 2W MAX.