Features: Rigorous design, feverish materials, and exquisited craftmanship. Use single power architectures makes it more convenient to use. Integrated super low distortions front end for more quality. Fast response, low noise power designing, dedicate protections chip. Large capacity capacitors, super low class D thin film capacitors. Specifications: Component: Circuit Board Size: about 96x62mm/3.78x2.44inch Type: D-class fever digital power Amplifiers board Power Amplifiers chip model: MA5332MS D-class power Amplifiers chip SNR: 96dB Supporting speaker impedance: 2-8ohm (4ohm-6ohm best) Output power: output power supports up to 200w Number of channel: Single channel Power voltages/current: voltages DC33V-50V, current 3A and above Package Includes: 1Pc Digital Amplifiers Board note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.