From Pedal to Performance
Radial Highline & Highline Stereo
The Highline and Highline Stereo are passive line isolators designed to connect guitar and amp modelers to a mixer for live touring and recording applications. Both models feature premium Jensen transformers for exceptional audio performance. The Highline offers a single-channel solution, while the Highline Stereo provides a two-channel option, catering to diverse setup needs without compromising on sound quality.
Highline
Passive Line Isolator
Compact & pedalboard friendly design
No loss of signal strength or tone when connecting to a mixer
Radial’s renowned reliability & build quality
Precision-wound Jensen Transformer
Ability to sum stereo sources down to mono
Elevate Your Tone
The Highline and Highline Stereo are line isolators designed to meet the needs of instrumentalists using amp modelers, enabling seamless connection to a PA or recording system while preserving signal integrity with no added noise or distortion. Both models feature premium Jensen 1:1 transformers, which retain full volume levels from the pedalboard to the PA and provide galvanic isolation to eliminate ground loop noise for a clean signal. The balanced outputs allow for long cable runs, and they block phantom power from reaching the pedalboard. The Highline can also accept stereo inputs and sum them to mono with the Sum switch, while the Highline Stereo offers more flexibility with two summing switches, allowing users to choose between stereo or mono configurations for PA or stage monitor setups.
Highline Stereo
Stereo Passive Line Isolator
Two channel isolator with stereo Thru outputs
No loss of signal strength or tone when connecting to a mixer
Radial’s renowned reliability & build quality
Precision-wound Jensen Transformers
XLR and Thru Sum options for added versatility
Designed for Amp Modelers
Guitarists and bassists using amp modelers on their pedalboards face unique challenges: while amp sims can produce line-level outputs, they often use 1/4" unbalanced connectors that aren't suitable for long cable runs without degrading tone and are highly susceptible to noise from ground loops when connected directly to the PA. The Highline addresses these issues by incorporating a 1:1 transformer into the signal path, providing isolation to reduce noise, protecting against phantom power, and maintaining the signal at line level for direct PA connection. Similarly, the Highline Stereo tackles these problems by integrating 1:1 Jensen transformers, ensuring isolation, reducing noise, protecting against phantom power, and preserving the line-level signal for seamless connection to the PA system.