1. High-efficiency Class D power amplifier with a height of 1U; 2. Built-in peak level limiter to protect speakers, with a clipping indicator light for reminder; 3. Equipped with automatic noise suppression function. When the input audio source stops outputting, the power amplifier can automatically suppress the background noise of sound reinforcement system equipment; 4. Features comprehensive protection functions, including soft start, DC protection, high-frequency protection, overvoltage protection, undervoltage protection, overload protection, short-circuit protection, limiter protection, overheating protection, etc.; 5. Surge protection: Power input supports 1KV differential mode and 2KV common mode protection; Power output supports 2KV common mode protection; 6. Stereo Output Power: 700W*2@8Ω; 7. Frequency Response Range: 20Hz-20KHz; 8. Input Sensitivity: 0.775V/1.414Vrms; 9. Input Impedance: 20KΩ balanced / 10KΩ unbalanced; 10. Voltage Gain: 36dB; 11. Signal-to-Noise Ratio (SNR): ＞100dB (A-weighted); 12. Total Harmonic Distortion (THD): ＜0.05% @1KHz, 1/3 power output; 13. Power Supply Adaptation Range: AC100V-240V/50Hz-60Hz; 14. Interfaces: 2-channel line input, 2-channel line output, 2-channel power output; 15. Optional RS485 remote monitoring module, supporting reading of parameters such as temperature, load, and working status via upper computer; 16. Power output channels are equipped with independent short-circuit detection and automatic recovery functions to improve system reliability; 17. Input channels support Link-Link cascading, facilitating synchronous signal distribution among multiple devices; 18. Adopts full aluminum brushed front panel and steel chassis, balancing heat dissipation and electromagnetic shielding performance; 19. Power-on soft start time ＜3 seconds, avoiding the impact of inrush current on the power grid; 20. Operating Temperature Range: 0℃ ~ +45℃; Storage Temperature: -20℃ ~ +70℃; 21. Net weight is only 6.8kg, facilitating transportation and rapid deployment; 22. Suitable for various application scenarios such as fixed installation, mobile performances, broadcasting systems and distributed sound reinforcement.