Broadcast Lightning Arrester

This amplifier switcher is a high-reliability core device for audio systems, integrating multi-channel adaptation, intelligent switching and comprehensive protection. It features four independent channels with 70V/100V audio signal input and output, supporting 1:1 backup connection of 4 main and 4 backup amplifiers, and realizes seamless automatic switching within milliseconds once main amplifier faults are detected, with manual switching option for flexible maintenance and debugging. Each channel operates independently without interference, ensuring stable operation of complex multi-zone audio systems.

Equipped with professional three-level protection (lightning, overvoltage, leakage), it meets IP20 lightning protection rating, can automatically detect lightning strikes on output lines, disconnect inputs and guide lightning current to the ground, effectively protecting outdoor broadcasting systems. With overvoltage protection threshold of 165–300V (peak), ≤10mA leakage current and ≥10MΩ insulation resistance, it ensures safe operation. Intuitive LED indicators show normal/fault status, and 0V short-circuit alarm output timely prompts faults.

Adapted to AC 220V ±10% 50-60Hz power supply, with low power consumption of 20–25W, its 89×483×366mm compact size and 7.7kg weight facilitate installation. It is ideal for large-scale occasions such as concerts and conference halls, providing all-round guarantee for uninterrupted audio transmission.