Radial Engineering SGI TX/RX Instrument Line Driver System

Balanced line driver for guitar and bass

Send signal up to 100 meters (300 ft) without loss

Jensen transformers for optimal sound quality

Delivers natural tone to off-stage amplifiers

Can be powered by standard 9V pedalboard power supplies

Can be used to connect the JX44 V2 to a local or remote pedalboard without signal loss or degradation

Take Your Tone Further

The SGI sends guitar signals across long distances without signal loss or noise, while retaining the original tone of the instrument. In the studio, it allows the guitarist to sit in the control room and connect to a distant guitar amp. On stage, the SGI can be used to play the guitar amp using off-stage isolation cabinets or it can be used to manage guitar signals to and from wireless systems, pedalboards and amplifiers.

How It Works

The SGI consists of two boxes: the SGI-TX transmitter and the SGI-RX receiver. The connection between the TX and RX is made using a standard balanced XLR microphone cable. To use, you simply plug your guitar into the SGI-TX input and connect your amp from the SGI-RX output and you are set to go. The SGI TX uses a discrete buffered circuit to drive your signals over long distances, while the SGI RX captures the signal and converts it to the appropriate impedance to feed your amplifier while retaining the original tone.

Jensen Transformer Equipped

The SGI system now proudly sports premium Jensen transformers inside: one in the SGI TX and one in the SGI RX. These transformers aren't just there to help with isolation to prevent hum and buzz from ground loops; they are a key part of the circuit that converts the signal at each end of the system. Using industry-leading Jensen transformers in the SGI helps achieve a wider, flatter frequency response, lower noise and distortion, improved dynamic range and a greater signal-to-noise ratio. All of this helps deliver audio cleanly across long distances without any alteration to your original signal.

Now Pedalboard Friendly

The SGI ships with an included 15V power supply to power the TX transmit unit, but it can also be used with standard pedalboard power supplies, making it easier to integrate onto a pedalboard. You can use any power supply from 9V to 15V, and both center-pin positive and center-pin negative polarities are accepted. Note that this is only true for the latest model of the SGI, the one with "Jensen Equipped" labeled on the top of the unit.

MXR 25 Foot Microphone Cable Whether you're recording drums in the studio or belting out tunes on stage, MXR Standard Series Microphone Cables transmit the true character of of your sonic output. We use 24 AWG oxygen-free copper conductors for pure sound reproduction and maximum-coverage OFC spiral shielding for excellent protection against interference from lights and computers. A tough metal housing and bulletproof strain relief ensure years of trouble-free use, while a tangle-free PVC jacket that's extra thick and flexible maximizes protection and minimizes noise. Limited lifetime warranty available worldwide. Trust your signal to MXR, the company that musicians have relied on for quality stage and studio products since 1972.