YINGHUA 4-Channel Audio Fiber Extender 20Km SC Balanced XLR KVM Switch

Four-Channel Audio Fiber Extender

This YINGHUA unit sends four balanced audio channels over a single SC optical fibre up to 20 km. It targets installers who need long-distance, noise-free audio links for venues, classrooms or broadcast sites. The transceiver pair ships with an EU mains plug for immediate deployment. No local configuration is required once the fibres are connected.

24-bit 96 kHz Digital Sampling

The link digitises each channel at 24-bit depth and a 96 kHz sample rate, preserving full dynamic range across the fibre. Balanced XLR connectors present a 10 kΩ input impedance and a 600 Ω output impedance with a unity gain ratio. This specification decides whether the extender matches your console, mixer or PA system interfaces.

Immunity and Power Draw

Optical transmission eliminates electromagnetic interference, radio-frequency pickup and ground-loop currents, so the signal stays clean in harsh electrical environments. The adaptive optical engine needs no manual alignment or gain adjustment during operation. Power consumption remains low enough for standard mains supplies without additional cooling.