1 Pcs 100W Super Rear Pole Ultra-Wide Supply Dual Ac 12V to 32V F6Y92427h
The front-end rectifier filter after the power input terminal (note the supply voltage polarity can not be reversed, otherwise the chip burn!) To the right of mono output.
The board easily compatible TDA7294 chip, the key is C4 capacitor placement, the board has indicated, this design is a major feature of the restaurant board.

Colour:As Shown
Material:PCB

Package Contents:
1 * Tda7293/Tda7294 Mono Amplifier Board