Radial LX-2: Split and Trim a Line-Level Signal Without Noise

The Radial LX-2 is a passive, transformer-based balanced line-level splitter and attenuator that sends one audio signal to two destinations at once while letting you trim the level exactly where you need it. Built around an industry-leading Jensen JT-11-FLPCH transformer, it delivers one isolated and one direct XLR output from a single combo input, blocking the DC and ground-loop current that create hum. For the engineer who needs to feed two systems from one source and keep both dead quiet, it is the kind of simple, bulletproof tool that solves the problem and gets out of the way.

Two Clean Feeds From One Source

The core job of the LX-2 is distribution: take a single line-level output and split it so two devices can receive it simultaneously. One output is transformer-isolated to break ground loops between the two destinations, and the other is a direct feed, so you can, for example, route a mixing console to both a powered speaker and a recording interface without the two systems fighting each other electrically. Because the split is passive, there is nothing to power and nothing to introduce noise of its own.

The Jensen Transformer Advantage

At the heart of the LX-2 is a Jensen JT-11-FLPCH transformer, widely regarded as a reference-grade audio transformer. It passively splits the signal while holding a 20Hz to 20kHz response within half a dB and a phase deviation of just 0.3 degrees at 20Hz, so the audio arrives at both outputs with its frequency balance and timing intact. The transformer also blocks DC voltage and galvanically isolates the outputs, which is what stops the hum and buzz that ground loops would otherwise inject into a two-system feed.

Variable Trim With Set-and-Forget Security

When a signal is too hot for its destination, the LX-2's variable trim control attenuates the level cleanly. This is what lets you drive a microphone preamp hard for its coloration and character, then pull the level back at the LX-2 so you never clip the input of your recording interface or the next device downstream. The trim is engaged by a recessed set-and-forget switch, so once you dial in the right amount of attenuation, an accidental knock on stage cannot shift it -- and when no trim is needed, you disengage the switch to remove it from the path entirely.

Ground Lifts, Combo Input, and Rugged Build

Each output carries its own ground lift switch for chasing down any residual ground-loop noise, and the combo input accepts either an XLR or a 1/4-inch connector; an unbalanced source is automatically balanced at the isolated XLR output. All of this lives in a 14-gauge solid steel enclosure with I-beam construction and heavy-duty connectors, the kind of build that shrugs off years of touring and studio abuse. From splitting a preamp to two compressors, to sending a clean signal to a DAW while feeding an outboard effect for parallel processing, to routing a stage line to both the PA and a recorder, the LX-2 handles line-level distribution the moment you need it.