ITEM NAME:DIY Module 12V DX0408 Digital Power Audio Stereo Amplifier 100W Board V5D4 Description&Preview.1 Piece DX0408 Amplifier Board Module. - The application uses imported STK4122 or STK4132 or STK4102 power amplifier tubes and excellent components to ensure the stability of the whole machine. - The output power is strong, the sound quality is excellent, and there is complete sensitivity protection function.