Palmer PLI-02

2-Channel Isolating Transformer in Cast Aluminium HousingIsolating transformers / line isolation boxes are used between line-operated devices to prevent ground loops that cause hum. However, they can also be used for the conversion of unbalanced to balanc

Image Palmer PLI-02

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Latest User Reviews

4 years ago

Greatly reduces Ground Loop noise.

For anyone looking for fixing ground loop problems relating to Laptop Charging / Conencting external monitor, This work lovely. Although it doesnt completely eliminate the effect, it greatly reduces it.

12 years ago

Groundloop solved

I had ground loop problems with my active studio monitors and the PLI-02 provided a satisfactory fix. Does the job without needing a power supply, sits unobtrusively in a corner. No noticable loss of volume either, which is nice. Perhaps on the pricey side and there may be cheaper options, hence overall 4 stars

Technical Data

  • Manufactured by Palmer
  • Released in 2004
  • Average price : $189
  • 2 Channel isolating transformers in cast aluminum casing, per channel:
  • Input: XLR / f-jack combo socket
  • Output: XLR / m
  • Transmission ratio: 1: 1
  • Nominal level: 0 db
  • Maximum level: 20 dB
  • Nominal impedance input / output: 600 ohms
  • Ground Lift switch for both channels
  • 5 Year warranty
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