2 Ch Line-Level XLR Audio to Fiber Converter Over 20 Km SMF or 500 Meters MMF, Providing 16-bit or 24 bit Audio Quality


Regular price $369.00



  • 2 Channels Line-Level (not Mic-Level) balanced audio fiber optic extender with XLR ports (female to male) 20 Km on SMF or 500 meters on MMF; not directly support Mic-Level Audio.
  • So It can not directly with the Microphone, if the Audio is from Microphone, the user need other devices like DJ controller/ Audio MIxer which has Amprifier function to work with our Extender. if the microphone is Dynamic type and need to directly connect with our Extender, please select our this item.
  • Supports 16-bit or 24-bit digitally encoded broadcast quality balanced audio;Easy stand-alone or rack-mount installation.
  • Plug and Play design ensures adjustment-free installation and operation, and optical adjustments are never required;
  • LED indicators are provided to instantly monitor the system operating status.


BY-XLR-349 includes optical transmitter and receiver, it enables 2 Channels balanced audio over optical fiber for extreme long distance.

Caution:   The Input & Output Audio should be connected with the Line-Level & Balanced Interface of the DJ controller or Audio Mixer,  if not,  the wrong connection could damage our devices or no sound out.  for more,  please check the Images of Application 1 & 2.

Wavelength: 1310nm
Output Power: -14~ -8dBm
Supported Optic fiber: 50/125u multimode,62.5/125u multimode,9/125u single mode
Rx sensitivity: -30dBm
Optical connector: 1 x ST, 1 x SC, 1 x LC, 1 x FC available
Distance: 0~500 Meters (MMF) / 0~20 Kilometers (SMF)
Balanced Audio:
Number of Channels: 2
Input Connector: XLR(female)
Output Connector: XLR(male)
Input / Output Impedance: 10K Ohm
Input capacitance LINE inputs: 10 pF
Max input/output voltage: +4 dBu (1.228 Volts).  if over the limit,  the audio distortion will appear.
Frequency Response: 20 Hz~24kHz @±3dB
Sample Rates From: 48kHz
SNR:> 80dB
Electrical & Mechanical:
Input Power Requirements: DC 5V@2A
Power Adapter: AC 90V~240V
Power Consumption: < 5W
Stand-Alone Dimensions: 168mm × 154mm × 45mm
Shipping Weight: (include Transmitter & Receiver ) 2.5kg
Operating Temperature: -20°C ~ +75°C
Storage Temperature: -40°C ~ +85°C
Relative Humidity: 0% ~ 95% (non-condensing)
MTBF: >100,000 hours
Rental, Staging, Theater, Stadiums, Theme Parks, Broadcast/Studio, CCTV audio and Professional AV etc

Package contains:
1. 1 x transmitter with optical module.
2. 1 x receiver with optical module.
3. 2 x Power Supply Adapter with US/EU/UK/AU plug..
About shipment:
Once order received, we will worldwide deliver by DHL Express for about 1 week delivery.

Or shop on Walmart/Amazon with worldwide Shipment (Free & Expedited)

BY-XLR-349 (2 Ch over 1 fiber)

BY-XLR-349 (2 Ch over 1 fiber)

or Directly Contact us at sales@transwan.com.cn for offline transaction.