Single Channel Passive Bi-directional Balanced - Unbalanced Converter

The BALUN is a passive Bi-directional stand alone unit for interfacing consumer or semi-professional unbalanced audio signal to professional balanced line level, and vice-versa.

There are one XLRF-3 balanced input and one parallel XLRM-3 balanced output that have an isolation transformer which is routed to one unbalanced RCA and one parallel 6.3mm jack connector.

Unbalanced input / output has a Ground Difference switch is fi tted to help combat ground loop. Left side is resistance linked to ground while right side offers full grounding chassis connection.

The BALUN professional quality balanced / unbalanced converter is designed for use in applications where exceptional audio performance is required. 



  • Broadcast quality.
  • Compact design.
  • Transformer isolated outputs.
  • Ground difference options.
  • Use of highest quality components.
  • Use of military grade toggle switch.



  Frequency Response -0.05dB/-0.03dB 20Hz~20kHz
  Maximum Input Level +28dBu, (1% 30Hz)
    +30dBu, (0.01% 1kHz)
  Distortion 0.003% (0dBu, 1kHz)
  Insertion Loss -1.5dB into 600Ω Load
    <0.1dB into 50kΩ Load
  Connections XLR Male Input/Output,
    XLR Female Input/Output,
    6.3mm 2 Pole Jack Input/Output,
    RCA Input/Output,
    Ground Difference Switch
  Dimensions W41 × H85 × D122 (mm)
  Nett Weight 0.43kg