High Power: This professional 800W Mono amplifier board 2SA1943/2SC5200 is assembled and offers a maximum power per channel of 800W, making it suitable for low power digital amplifier and analog amplifier.Adjustable Features: The amplifier board comes with adjustable current and temperature control, providing you with the flexibility to adjust according to your needs.Working Voltage: Mono Audio Power Amplifier Board operates at a two AC24-45V working voltage.Quality Material & Size: Made from quality materials, this amplifier board measures approximately 25X13.5X5.5cm/9.84x5.31x2.16in, making it compact yet sturdy.Package Includes: Each package comes with 1 amplifier board, ensuring you have everything you need to get started. Specification: Specifications: Maximum power per channel: 800WWorking voltage: two AC24-45VSize: approx 25X13.5X5.5cm/9.84x5.31x2.16inChip: 1943x4+5200x4 Package Includes: 1Amplifier Board Note: Please allow slightly errors 1-2cm differences due to manual measurement.