800w stereo board

Supply voltage: DC 7V-15V 2. Output power: 10w + 10w (8 load) 3. Efficiency: 90% 4. Shutdown Current: 4uA 5. Quiescent current; 20mA 6. SNR: 86% 7. Total harmonic distortion: 5W / 1KHz / 8 ---- 0.1% 8. Frequency range: 20Hz-20KHz 9. Input impedance: 15K 10. Output Impedance: 4-8 11. Amplifier board size: 30mm * 25mm * 2.5mm 1. The power supply voltage limit is 16.5V, do not use more than this voltage. 2. The power supply is recommended for 12v, 3A power supply filter better 3. 4-8 inch stereo speakers recommended. 4. Do not short-circuit the audio output to each other or shorted to ground. 5. Carefully check before electricity, ensure wiring is correct before electricity.