Features: Using original TDA7498E TL072 chipset. 1UF high-end capacitors, and main filtering capacitors is 2x2200UF, ensuring strong and continuous power. 1.6mm thick double-side board, 2.0oz thickness, ensure good passing performances. Adopting fully enclosed dustproof potentiometer, more stable than ordinary potentiometers. Adopting redness rings high current inductors to ensures clear and powerful sound. Specifications: Material: Printed Circuit Board Size: approx. 114x109mm/4.49x4.29inch Working: Class D Static current: 50mA Work efficiency: 90% Rate output power: 2x100W+200W Frequency response: 20Hz to 20KHz Working voltages: DC24V Recommended voltages: DC24V Output current: up to 10A Package Includes: 1Pc Digital Amplifier Board note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.