Features: brand new and high quality TDA7498 is the first 100W+100W power amplifier board on the market.It supports monolithic integration of analog, logic and high voltage functions. Compared with other Class D amplifier processes, ST's BCD6S has a higher chip area. It also reduces crosstalk and improves sound quality. The BCD6S high-power output circuit integrates NMOS and PMOS complementary transistors, eliminating the need for bootstrap capacitors and cathode load diodes required by legacy processes. The distortion degree (THD+N) of STMicroelectronics TDA7498 is less than 0.01%, which can provide a higher quality listening experience. The main filter electrolytic capacitor adopts a capacity of 2200UF, ensures a strong and continuous power support. The resistors use high-precision 0805 chip resistors, and the main circuit uses five-ring metal film resistors with an accuracy of 1%. 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. Specifications: Model: TDA7498 amplifier board (100W+100W) Works way: Class D Quiescent current: 50mA Work efficiency: 90% Rated output power: 2x100W Frequency Response: 20Hz to 20KHz Working voltage: DC20V to DC36V Recommended power supply voltage: DC32V Maximum output current: 7A PCB board size: approx(8772)mm/3.42x2.83in Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 PC x Digital Power Amplifier Module