Description
Guitar amps don’t belong in the control room — but you’d still like to hear yourself clearly while your rig does its thing somewhere else entirely. The Radial SGI solves that disconnect. It’s a two-piece studio guitar interface that lets a standard 1/4″ guitar signal ride down an ordinary balanced XLR mic cable for up to 100 meters (328 feet), arriving on the other end sounding like your guitar, not a compromised version of it.
- SGI-TX (transmitter): fully discrete, 100% Class-A circuitry with a Drag control that lets you dial in pickup loading to correct for cable capacitance and preserve natural high-end response
- SGI-RX (receiver): passive design, converts back to standard 1/4″ for your amp, mixer, or pedalboard
- Isolation transformers in each module are wired in opposing polarity specifically to cancel ground-loop hum and buzz, with a ground lift on the RX for extra insurance
- Plug-and-play setup, includes power supply
The workflow is straightforward: guitar cable into the TX’s input, TX’s low-Z XLR output down a balanced mic cable to the RX, RX’s 1/4″ output into your amp or effects chain. Set the Drag control for the pickup feel you want, flip the ground lift if noise creeps in, and that’s it — your amp can live on stage or in another room entirely while you track from wherever’s comfortable, with none of the tone loss or degradation that normally comes with running long guitar cable runs.
Originally built for touring and studio setups where distance between player and amp is unavoidable, the SGI just as easily solves the everyday problem of wanting isolation between your playing space and your amp’s blast radius.
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