Whirlwind ISO2
Line Isolator Dual Line Balanced XLR


The ISO-2 is a two channel isolation box and line balancer.

As an isolation unit, use it to isolate lines to press and video feeds or on-stage power amps. It's a handy hum and buzz fighter for broadcast or live sound applications.

As a balancer. it converts unbalanced lines from CD players, tape decks, etc. to balanced for long cable runs.

Each channel features:

  • XLR or 1/4" input
  • Ground-lift button
  • Polarity reverse button (Channel 2 only)
  • Whirlwind's own TRSP-600 transformers ensure flat frequency response and low distortion.


  • Frequency Response: 20Hz-20kHz ?0.5dB at +10dBm input
  • Maximum Input Level: +28dBm
  • Input Impedance: 600 Ohms
  • Output Impedance: 600 Ohms
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