Palmer PLI-03

Line Isolation Box

  • 2-Channel isolation transformer
  • Diecast aluminium housing
  • RCA inputs and outputs
  • Ideal for suppressing hum loops in hi-fi racks or eliminating light machine noises in the car hi-fi range
  • 5 Year warranty

Further information

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

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4.8 / 5.0
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Luxury solution

Doorknob, 15.10.2009
The Palmer PLI-03 is a galvanic decoupler for the clean separation of devices in audio installations. This makes it easy to eliminate audible rumble loops via unsymmetrical signal paths. For me, the device is used both in the PA as well as in the hifi area to eliminate rumble loops after connecting a computer.

The device transmits the signals without audible distortions and is therefore also very suitable for demanding hi-fi installations.

The biggest advantage, however, is the small size of the box, its robust Palmer series, which would also withstand the hard stage use and the high-quality connections.

However, two disadvantages are not to be dismissed in any case. Despite the exceptional quality I feel the price as a bit too high. In addition I would have also wanted jack inputs and / or outputs - perhaps even with lockable sockets.

Conclusion: A comfortable and clean solution of almost unsurpassed quality. Only the price makes this device unfortunately a luxury accessory. I can still recommend the device to anyone looking for a rugged, high-quality and uncomplicated solution for their humming-loop problem. I myself will continue to rely on this product in the future.
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A product that does exactly what it promises!

Jean-Marc I., 17.09.2012
I had a double problem of galvanic isolation and impedance matching between a source and a mixer.
On the one hand, the source required a low load impedance to automatically and stably switch one of its internal circuits.
On the other hand, there was a ground loop which interfered with the transmission of the signal with the presence of a 50Hz snore associated with electrostatic interference.
The insertion of the Palmer PLI-03 instantly solved both problems.
The source switches seamlessly and the signal is perfectly clean.
I did not notice any loss of level, no coloring of the sound, no audible restriction of the bandwidth.
The product is well built, solid and heavy as a tank, which is a guarantee of the quality of the transformers used.
The RCA input-output connectors are gold-plated for good contact and seem to last.
What can I say more, if not that I would again choose this product closed eyes if I encountered again a problem of impedance matching and / or mass loop.
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Online guides
DI Boxes
DI Boxes
While we could go into more and more detail about DI boxes and their inner workings, at some stage it’s best to get some hands-on experience!
Online guides
Recording E-Guitars
Recording E-Guitars
Our aim is to explain the basic process of recording the electric guitar!
 
 
 
 
 
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