• Amplifier board with high immunity to interference and high tolerance to fluctuation digital input, ensuring superior sound quality. • Electromagnetic interference suppression for stable operation. • Allows direct connection of speakers. • Class D amplifier with adjustable gain at 3dB, 6dB, 9dB, 12dB, or 15dB, adapting to different audio needs. • Automatic configuration of 35 different clocks and 128 digital audio formats, facilitating integration into various systems. • Recommended for use in players, headphones, speakers, professional audio equipment, amplifiers, and digital-to-analog converters (DAC). • Includes an e-book with useful information, application examples, installation guides, and libraries to facilitate project startup and development.