Radial Engineering Highline Stereo Passive Line Guitar Amp Isolator

Amp simulators are more popular than ever, but they present a unique set of problems for guitar and bass players who want to interface them with a PA system. While amp sims can produce line-level outputs, they often have ¼" unbalanced connectors that aren't designed for long cable runs, and they encounter hum and buzz from ground loops when connected directly to the PA.

The Radial Highline Stereo is a line isolator ideal for players who utilize amp simulators on their pedalboard. The Highline features premium Jensen 1:1 transformers that retain the full volume from the amp sim while providing isolation that breaks up ground loops and protects against phantom power, along with a balanced output that can be run over long distances without signal degradation.

The Radial Highline Stereo is the ultimate line isolator for stereo amp simulators and pedalboards. Equipped with dual Jensen transformers, the Highline Stereo delivers clean, balanced signals with maximum clarity and retains the full output of your gear. Designed with Radial’s rugged build quality, it’s a dependable choice for live or studio use. Dual XLR and Thru outputs handle stereo setups, while XLR Sum and Thru Sum functions provide seamless mono compatibility without compromising your tone.