Detail 01
Passive design
The isolator operates without external power.
Product detailSKU #1500000455133
Radial EngineeringHighline Passive Line Isolator
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Independent shopping perspective
The Korena take
The Radial Highline is a passive line isolator built to clean up line-level connections affected by ground loops, hum, or interference. Its Jensen transformers handle the isolation while preserving signal integrity, including on long cable runs. No external power is needed, and the unit accommodates balanced as well as unbalanced signals. Use it in a complex PA, studio routing chain, or broadcast system when the connection between devices needs a cleaner audio path.
Strong match
Who this is for
- Addressing hum or ground-loop problems in a complex PA system’s line-level signal path.
- Maintaining clean audio between devices across longer cable runs in studio or broadcast work.
- Integrating balanced or unbalanced line-level signals without an external power supply.
What matters in use
The specifications, translated
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 02
Balanced and unbalanced signal support
It can be used with either kind of audio signal connection.
Detail 03
High-performance Jensen transformers
They provide the unit’s signal isolation.
Final check
Know before you order
- 01Confirm that the connection you need to isolate is line level.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does the Highline require external power?
No. It uses a passive design.
02What issues can it help eliminate?
It is designed to eliminate ground loops, hum, and interference.
03Is it intended for long cable runs?
Yes. It is designed to keep audio clean across long cable runs.
