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 balanced lines.

PLI-02 - Dual-channel line isolation box for professional stage / studio use. The input jack is a Neutrik combo-socket, which accommodates both male XLR plugs as well as jack plugs. An XLR / m jack is used on the output side. Balanced or unbalanced operation is easily possible thanks to the combination socket in the input. This makes the PLI-02 perfect for balancing unbalanced mixer outputs (Jack In, XLR Out). However, it can also be easily used for the transformer balancing of existing electronic inputs or outputs.

  • 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

Further Information

Multi-Channel Unit Yes
Active / Passive Passive
19" No
Pad switchable No
Gnd/Lift switchable Yes
Powered by battery No
Speaker Simulation No

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48 Customer Ratings:
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4.9 / 5.0
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22 written ratings Read all reviews
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Groundloop solved

Sjoerd W., 12.03.2014
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
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Knight in shining armor

Peter H., 10.01.2010
This box has helped me out of many messes. A nasty hum on the plant? Star-shaped cabling has also not helped, or is, why, always, not feasible?
The PLI-02 between inserted, depending on the necessity of the ground lift actuated and in the very few cases, the problem has been done with it.
The combi-jacks on the input and the design as a stereo device make the box ideal for use in the master path or other stereo instruments.
The processing is impeccable, the part acts as you could nails with it, the connections are from Neutrik and I would not miss it any more. A super part when it has to go fast again. It has often saved me. The only small drawback is the inscription of the ground lift switch, I have not yet understood which position is now ON and which is OFF. In use, however, you try it out anyway.

-> Purchase recommendation
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165 €
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