Features: Chip:TDA7850 Power supply: DC12V–16V / AC9V–12V Max.Output Power:4 x 50W Power current: 3A Min. 10000uf big electrolytic capacitors Dimension: 120 x 65 x 38.2mm TDA7850 audio amplifier IC, Hi-Fi 4-channel output. Microcontroller (CPU) to control audio. Encoder adjust treble , bass and overall volume. Audio input, sound and volume control, two-way audio cables are used to switch external, easy to install. With power off memory function, suitable for car audio upgrade or DIY four-channel home theater amplifier. Button Instruction: INPUT button: (input select button) The default audio signal input port (AUX-1) state, press the INPUT button to switch to the audio signal input port (AUX-2) status. MODEL keys: default encoder is the total volume adjustment, press the button on the encoder to switch to “Treble →Bass →The total volume”, 360° rotating cycle regulation. Clockwise rotation to increase the volume, counterclockwise decreases the volume . Package includes: 1x TDA7850 Amplifier Board 1x Encoder 1x Input Select Switch 2x RCA lotus seat
