Detail 01
Dual-channel stereo operation
It is intended to isolate two channels for a stereo line-level source.

Independent shopping perspective
Radial’s Highline Stereo is a dual-channel passive isolator for stereo line-level audio. Jensen transformers provide the isolation needed to address hum, buzz, and ground-loop issues while retaining signal clarity and dynamics. Because it needs no external power and accepts balanced or unbalanced signals, it can be placed between stereo playback devices, keyboards, or mixing consoles without adding a power requirement. It suits studio routing, live-sound systems, and broadcast signal paths.


Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
It is intended to isolate two channels for a stereo line-level source.
Detail 02
No external power is required for operation.
Detail 03
It can integrate with either type of audio signal connection.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. Its passive design requires no external power.
It is designed to eliminate hum, buzz, and ground loops in stereo line-level signal paths.
Yes. It is designed for balanced and unbalanced audio signals.