Introducing the Thor Fiber F-4A-XLR-B-PHP-TXRX 4 Bidirectional Balanced Analog XLR Audio with 48V DC phantom fiber optic Transmitter/Receiver Converter Kit. Absorbing the advantages of similar products at home and abroad, combined with the actual demand of the market, Thor launched the broadcast XLR balanced audio fiber optic converter, using FPGA, digital code, and clock recovery technology, with high integration, high stability, and high intelligent noise reduction system. To ensure the reliability, consistency, and stability of the equipment for soft rising or falling ramp waves and simulated squelch with a 100dB signal-to-noise ratio (SNR) without popping sound operation. CWDM technology realizes multi-channel signal transmission. The product has stable performance, simple installation, easy maintenance, and it is suitable for large-scale commercial operation.