Pricing and availability
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Average Price: $259
Standard/Professional
$119
$300+
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Price History
Based on price data from 7 merchants for "Radial Highline Stereo Passive Line Isolator". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
In the dynamic world of studio recording, the Radial Highline Stereo Passive Line Isolator emerges as a steadfast companion for musicians and audio engineers alike. Designed to tackle the intricate challenges posed by amp simulators and modelers, this compact yet powerful tool is your ultimate ally in maintaining pristine signal quality. At the heart of the Highline Stereo are the premium Jensen 1:1 transformers, renowned for their ability to preserve the full volume of your signal while ensuring complete isolation from noise-inducing ground loops.
Whether you're running long cable distances or interfacing with a complex PA system, this isolator effortlessly converts unbalanced line-outs to balanced signals, warding off signal degradation. Its stereo inputs and outputs provide versatility, allowing for multiple rig connections, signal splitting, or even summing stereo inputs to mono via its innovative sum feature. The inclusion of a ground-lift switch further enhances its noise-reducing capabilities, making it an indispensable tool for any professional audio setup.
Key Features:
- Converts unbalanced line-out to balanced, preventing signal degradation
- Jensen 1:1 transformers for superior signal isolation and integrity
- Breaks up ground loops and protects against phantom power
- Stereo I/O for additional lines or signal splitting
- Sum feature turns input and thru jacks into a passive mixer, converting stereo sources into mono
- Ground-lift switch to eliminate unwanted noise
Product specs
| Type | Guitar Simulaton Stereo Direct Box |
| Channels | 2 |
| Ground Lift | Yes |
| Inputs | 2 x 1/4" (L/R input) |
| Outputs | 2 x 1/4" (L/R Thru), 2 x XLR (L/R balanced out) |
FAQs
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What is the primary function of the Radial Highline Stereo Passive Line Isolator?
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The Radial Highline Stereo Passive Line Isolator is designed to eliminate ground loop hum and buzzing by isolating guitar amp simulations from the PA system, ensuring a clean and noise-free audio signal.
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Does the Radial Highline Stereo Passive Line Isolator require a power supply?
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No, the Radial Highline Stereo Passive Line Isolator is a passive device and does not require any external power supply to function.
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What types of connections does the Radial Highline Stereo Passive Line Isolator support?
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The Radial Highline Stereo Passive Line Isolator features 1/4" inputs and thru outputs for amp monitoring, along with balanced XLR outputs for connecting to a PA system.
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How does the ground lift switch on the Radial Highline Stereo Passive Line Isolator work?
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The ground lift switch on the Radial Highline Stereo Passive Line Isolator helps eliminate unwanted buzz by disconnecting the ground path between connected devices, reducing the potential for ground loop noise.
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Can the Radial Highline Stereo Passive Line Isolator handle high-output signals?
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Yes, the Radial Highline Stereo Passive Line Isolator uses Jensen transformers to maintain full signal level and tone from amp simulations, making it suitable for high-output signals without signal degradation.
Videos
Radial Engineering
Highline and Highline Stereo Amp Sim Passive Line Isolators
Reviews
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Radial Highline Stereo Passive Line Isolator.
Features and functionality
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The Radial TWIN ISO Passive Line-Level Isolator maintains line level integrity while isolating ground and ensuring balanced lines, ideal for complex PA setups.
Source
User experience
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Owners using the Radial Twin-Iso highlight its robustness compared to smaller alternatives like ISO-BLOX, which are better for occasional use.
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Use cases and applications
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Proco IT4A 4-channel line isolator is recommended for rack integration, providing seamless interfacing with different power-sourced systems in venue setups.
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Based on 0 Reviews and 0 Ratings
Artist usage
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