Radial SGI | Studio Guitar Transmitter Receiver Interface System

The Radial SGI is an exceptional line driver designed specifically for guitarists and bassists seeking to maintain a pristine signal over long distances without noise interference. Imagine being able to position yourself in the control room, far from your amp, without sacrificing any tone quality. This versatile system is perfect for studio settings as well as live performances, providing the flexibility to connect to off-stage isolation cabinets, manage signals between wireless systems, or seamlessly integrate pedalboards and amplifiers.The setup is effortlessly simple, requiring just two boxes: the SGI-TX transmitter and the SGI-RX receiver. By using a standard balanced XLR microphone cable between the transmitter and receiver, your guitar signal is efficiently balanced, buffered, and impedance-matched, ensuring you get the purest sound without any loss. Built with Radial’s award-winning class-A buffering circuit design and discrete components, the SGI includes Drag Control load correction, which mimics the feel and tone of plugging directly into a tube amplifier. Transformer isolation further ensures your sound remains free from hum and buzz, creating a pristine audio experience trusted by legends like Carlos Santana, Eric Clapton, Jeff Beck, Joe Perry, and Metallica.

Key Features

• Balanced line driver for guitars and bass
• Send signal over 100 meters (300 feet) without loss
• 100% discrete class-A with Drag Control
• Delivers pure sound without artifact

Specifications

• Audio circuit type: Active 100% discrete class-A with transformer isolation
• Frequency response: 20Hz ~ 18kHz (-2dB)
• Signal to noise ratio: 102dB (0dBu input)
• Dynamic range: 112dB
• Noise floor: -102dBu
• Maximum input: +10dBu
• Total harmonic distortion: 0.005% @ 1k
• Inter-modulation distortion: 0.04% @ 1k
• Input impedance: Variable from 10k Ohms ~ 1 megaOhm
• Output impedance: 4.5k Ohms (1/4" unbalanced)

Package Contents

• SGI-TX Transmitter
• SGI-RX Receiver
• User Manual