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LEHLE P-ISO TRS XLR STEREO

Gold-plated Switches
The signal from the pickups of an electric guitar or bass is so weak that poor-quality cables, cold joints and cheap contact materials ruin your sound. Switch contacts need to be made of special materials to permit loss-free switching of these low-level signals. All Lehle switchers feature special relays and slide switches with gold-plated contacts for totally reliable, absolutely zero-loss switching.
LEHLE TRANSFORMER HZ
Hum loops and phase cancellations can occur as soon as the signal from an instrument is fed to more than one amp simultaneously. The one and only remedy for this is a high-quality transformer. Standard transformers modify the tone of electric guitars and basses very severely, since they are not designed to handle the low-strength high-impedance signals generated by instrument pickups. The LEHLE TRANSFORMER HZ, on the other hand, has been specially conceived for use with these high-impedance signals, preserving instrument tone and the interaction between instrument and amp and eliminating hum loops.
Stereo
Many effects units feature stereo outputs. Or: instruments frequently have two pickup systems, e.g. a combination of conventional magnetic and Piezo types, to emulate an acoustic sound. Lehle accessories are ideal for trouble-free routing of such dual-channel stereo signals. All stereo-capable Lehle products are, of course, also suitable for mono operation.
XLR Output
Equipped with a standard male XLR-socket with gold plated contacts for balanced output.
No Hum Loops
All LEHLE products not featuring a LEHLE TRANSFORMER HZ transformer and bearing this symbol switch the signal ground parallel to the signal itself via switches or relays with gold-plated contacts. Hum loops are thus effectively eliminated when switching backwards and forwards between different signal sources without, for example, simultaneous activation of two amps.
  • Stereo isolator and problem solver in a compact format
  • Absolutely no signal loss or hum
  • Comes with two high-impedance LEHLE TRANSFORMER HZ and ground switch
  • Suitable for balanced or unbalanced signals with TRS and XLR sockets
  • Passive – no need for a power supply

The LEHLE P-ISO TRS XLR STEREO brings you closer to the main mixing system. It converts your stereo audio signal not only to balanced XLR but lifts the ground so there’s no chance of unwanted noise or humming loops. Perfect for your pedal board, modeler and amp simulation in studios, clubs, bars or stadiums – all fitted into a handy size.
The combination of passive isolation with highest possible signal fidelity is only realisable thanks to its core, existing of two LEHLE TRANSFORMER HZ, which galvanically isolate the signals.
While being designed especially for high impedance signals, they process low impedance signals with the same uncompromising sound quality as well. The high coupling and flat frequency response won’t let you miss any detail in the signal.
The classic application for the LEHLE P-ISO TRS XLR STEREO is the connecting link in between your stereo device and the professional world of mixers, FOH and DAW recording systems.
It lifts the ground in between those worlds, so the devices are galvanically isolated - any hum or noise caused by a ground loop becomes a thing of the past. Offering balanced audio signals at the two male XLR sockets by Neutrik gets you protected even closer to the mixer while using simple standard XLR cables.
Not only for stereo effects, digital modeler and amp simulation devices - even keyboards, synths, playback systems or audio interfaces are in safe hands of the LEHLE P-ISO TRS XLR STEREO.
You won’t find a power connection as you get all the performance of that compact box passively, without the need for a power supply.
And due to its optimised size and low weight, it fits easily below your pedalboard or in any pocket - always installed or as flexible tool to share.

Manufacturer: Lehle GmbH · Grenzstr. 153 · 46562 Voerde / Germany · support@lehle.com
Weight 428 g
Length 72 mm / 2.8"
Width 94 mm / 3.7"
Overall height 35 mm / 1.4"
Frequency range 20 Hz – 100 kHz -0.1/ +0.4 dB (source 600 Ω, load 1 MΩ)
Total harmonic distortion 0.003 % (0 dBu, 1 kHz)
Input impedance (transformer load impedance) min. 2 MΩ at 2 kHz
Max. level 7.7 V RMS / 20 dBu (THD < 1%, 50Hz - 20 kHz)
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I have the following questions on the product LEHLE P-ISO TRS XLR STEREO (Order code: 1035)
JOKI SCHALLER
Joachim Joki Schaller
Tel +49 2855 850070