2-Channel Audio Amplifier with Volume Control PAM8403 Our 2 Channel Audio Amplifier with Volume Control PAM8403 is a 2 channel 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high quality sound. Technical Details: PAM8403 Amplifier Module Dimension: L 29.5mm x W 20.2mm x H 15mm (not include Potentiometer rod size) Operation Voltage: 2.5V~5V DC (can be powered by USB) Chip: PAM8403 Power filtering is upgraded to 470 uf Potentiometer life can be up to 15 years Potentiometer includes on/off switch Superior Low Noise Efficiency up to 90% Short Circuit Protection Thermal Shutdown Note: Please make sure the power supply is not more than 5.5V and please don’t do reverse polarity for “+” and “-“, or else, it will burn the board.
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