WINNER UPDATE
A big congratulations goes to Mike S from Mission, BC & Kevin W. from Calgary, AB – our Highline Stereo + UA Amp Sim giveaway winners. Thank you to everyone who entered and stay tuned for more exciting announcements to come!

To celebrate the exciting announcement of the new Radial Highline & Highline Stereo passive line isolators, we decided to host a giveaway with not just one – but TWO prizes. We’re giving away TWO Highline Stereos! Plus, we’ve teamed up with our friends over at Universal Audio to make our giveaway even better with their amp simulator pedals. The first winner will receive their Highline Stereo paired with the UA Lion, and the second winner with the UA Enigmatic.
Prize Package
2 winners will be chosen:
- 1X Highline Stereo + UA Lion ‘68 Super Lead Amp Pedal
- 1X Highline Stereo + UA Enigmatic ’82 Overdrive Special Amp
How to enter:
What is the Highline/Highline Stereo?
Recently announced at The 2025 NAMM Show, the new Radial Highline and Highline Stereo are the ultimate solutions for players using amp simulators on their pedalboards. Featuring premium Jensen transformers, the Highline is a passive line isolator that delivers pristine signal clarity, eliminates hum and buzz with superior isolation, and provides a balanced output for long cable runs without degradation. Compact and pedalboard-friendly, the Highline ensures seamless integration and reliable performance on stage or in the studio.
Highline
The Highline is a passive line isolator specifically designed to address the needs of instrumentalists who use amp modelers, allowing them to seamlessly connect to a PA or a recording system while maintaining their full signal integrity with no added noise or distortion. The Highline features a premium Jensen 1:1 transformer, which retains the full volume level from the pedalboard to the PA, while also providing galvanic isolation that eliminates ground loop noise for a clean and noise-free signal.

Features
- Ability to sum stereo sources down to mono
- 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
Highline Stereo
The Highline Stereo is a full-featured passive line isolator specifically designed to address the needs of instrumentalists who use amp modelers, allowing them to seamlessly connect to a PA or a recording system while maintaining their full signal integrity with no added noise or distortion. The Highline features premium Jensen 1:1 transformers, which retain the full volume level from your pedalboard to the PA while also providing galvanic isolation that eliminates ground loop noise for a clean and noise-free signal.
Features
- 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

Watch the videos below for more details on the Highline & Highline Stereo!