Features: Adopt original imported MA12070P The main circuit of the electrolytic capacitor signal adopts a chip electrolytic capacitor with a capacity of 2470UF, which ensures a strong and continuous power support. The resistors use high-precision chip resistors to ensure a good signal-to-noise ratio of the whole machine. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents. Top-notch PCB quality. Fully shielded high-current inductors are used to ensure clear and powerful sound. The MA12070P Class D Audio Amplifier is a filterless and ultra-efficient audio power amplifier based on a proprietary multi-stage switching technology.The device supports 4V to 26V supply voltage range makes it extremely versatile. Multi-level switching enables extremely low power loss during operation.Additionally, the amplifier filterless configurations are also available at full rated power in a variety of audio products. The MA12070P adopts an embedded digital power management scheme. The power management algorithms dynamically adjust switching frequency and modulation to optimize power loss and EMI over the entire output power range. An integrated digital-to-analog converter can support digital I2S audio stream input. It supports sample rates from 44.1kHz to 192kHz. The device features a highly flexible output stage configuration covering four single-ended outputs to a single parallel BTL output. Specifications: Material:ABS Working method: Class D Quiescent current: 50mA Work efficiency: 90% Rated output power: 2x80W Frequency response: 20Hz to 20KHz Working voltage: DC18V-DC24V Output Max Current: 4A Note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1x MA12070P Digital Power Amplifier Board