Radial LX-3 Passive Balanced Line-Level Splitter, 1-In 3-Out, Jensen Transformer

Radial LX-3: One Balanced Source, Three Clean Destinations

The Radial LX-3 is a passive, transformer-based balanced line-level splitter that sends a single line source to three destinations at once, built around a premium Jensen JT-123-FLPCH transformer for the widest possible bandwidth and lowest distortion. Two of its three outputs are transformer isolated to kill ground-loop hum, while a third direct output offers a hard-wired feed, and every output carries its own ground lift. When one signal has to reach a recorder, a PA, and a monitor rig all at the same time, the LX-3 does it silently, so the only thing anyone hears is the music.

How Passive Transformer Splitting Protects Your Signal

Splitting an audio signal by simply paralleling cables invites hum, buzz, and level loss, because every device you connect shares a ground path and loads the source. The LX-3 solves this the analog way: the Jensen JT-123-FLPCH transformer magnetically couples the signal to its isolated outputs, so each destination is electrically separate and no ground loop can form between them. Because the circuit is 100 percent passive, there is nothing to add noise, no power supply to fail, and a rated dynamic range of 140 dB, so the split is as quiet and transparent as the source itself.

Isolated Outputs, a Direct Feed, and Ground Lift Everywhere

The LX-3 gives you three outputs with different jobs: two are transformer isolated for connections that cross to another system or another power source, and one is a direct output that mirrors the input for a local, hard-wired feed. Each of the three XLR outputs has its own ground-lift switch, so if one leg of the split develops a buzz you can lift just that ground and leave the others intact. This point-by-point control is what turns a stubborn ground-loop problem into a two-second fix on stage or in the studio.

The -12 dB Pad and the Combo Input

A switchable -12 dB input pad lets the LX-3 accept very hot line outputs without distortion, extending its maximum input handling to a huge +32 dBu, so nothing you plug in will overload it. The input itself is an XLR / 1/4-inch combo jack that takes balanced or unbalanced cables interchangeably; feed it an unbalanced source and the transformer automatically balances the audio at the isolated outputs, protecting it from interference over long cable runs. It is the kind of flexibility that means the LX-3 works with whatever is already on your bench or in your rack.

Where the LX-3 Earns Its Keep

Send a single click-track or mono console feed to three personal monitor mixers on stage, and every performer gets the same reference without a ground loop between racks. Split the output of one mic preamp to three different compressors or effects units in the studio to build parallel processing chains from a single source. Or feed a live board mix to three portable recorders, cameras, or wireless transmitters at once for redundant capture, knowing each leg is isolated and quiet.

Built for Stage, Studio, Broadcast, and Install

Compact enough to sit on a console bridge yet tough enough for the road, the LX-3 suits front-of-house engineers feeding recording and broadcast splits, studio engineers distributing preamp outputs, and AV integrators who need one source in multiple rooms. It mounts in the Radial J-Rak 4 or J-Rak 8 rack adapters or fastens down with the J-Clamp for permanent installs. For anyone who needs to split a line signal cleanly and forget about it, the LX-3 is a set-and-trust solution.