The 4-channel bidirectional XLR Audio Fiber Extender (1U rackmount) is a professional-grade solution designed for high-performance audio transmission in demanding environments. It enables simultaneous two-way transmission of four independent balanced analog audio channels over a single optical fiber, significantly reducing cabling complexity and infrastructure costs.

Housed in a standard 1U rackmount chassis, this device is ideal for centralized equipment rooms, broadcast racks, and professional AV installations. It supports both input and output on each side (A/B units), allowing full-duplex communication for applications such as intercom systems, stage monitoring, and bidirectional audio distribution.

Compared to traditional XLR copper cables, which are limited by distance and prone to electromagnetic interference, this fiber-based system ensures ultra-stable, noise-free, and high-fidelity audio transmission up to 20km.

Each channel is independently processed with high-performance ADC/DAC technology, ensuring excellent dynamic range, low distortion, and minimal latency. The system is fully plug-and-play, requiring no software configuration, making installation quick and efficient.

Its robust metal construction and rackmount design make it suitable for continuous operation in broadcasting stations, live event production, recording studios, conference systems, and large-scale audio distribution networks.

Key Features

4 Channel Bidirectional Transmission
Simultaneous 4-channel send and return over a single fiber (full-duplex)

1U Rackmount Design
Standard rack installation for professional AV systems and equipment rooms

Single Fiber Solution
Reduces cabling complexity and installation cost

Long Distance Transmission (Up to 20km)
Perfect for large venues, stadiums, and remote audio links

High-Fidelity Audio Performance
Low noise, low distortion, and accurate sound reproduction

Independent Channel Processing
Ensures excellent channel isolation and no crosstalk

Strong Anti-Interference Capability
Fully immune to EMI/RFI interference

Ultra-Low Latency
Real-time audio transmission for professional applications

Plug & Play Operation
No configuration or software required

Industrial-Grade Reliability
Durable metal enclosure for 24/7 operation

Application Scenarios

• Broadcasting & TV Studios
• Live Concert & Stage Audio Systems
• Recording & Production Studios
• Conference & Meeting Systems
• Intercom & Communication Systems
• Stadium & Large Venue Audio Distribution
• Security & Surveillance Audio Transmission

Specifications(Detailed Specification Table)

Application

Package Contents

• 1 × 4-Channel XLR Audio Fiber Optic Transmitter
• 1 × 4-Channel XLR Audio Fiber Optic Receiver
• 2 × Power Adapters / Power Cords
• 1 × User Manual
• 1 × Rack Mount Installation Kit