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Product Description

The Radial SGI is a high performance line driver that takes an unbalanced guitar signal and allows you to drive it as far as 100 meters (300ft) without noise. 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 be used to manage guitar signals to and from wireless systems, pedalboards and amplifiers.

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 does all of the balancing, buffering and impedance matching for you.

The real magic occurs inside. The design begins with full size 100% discrete parts with Radial's award winning class-A buffering circuit design. This is augmented with Drag ControlT load correction that lets you replicates the tone and feel as if connecting a guitar directly to a tube amplifier. To ensure noise performance the system is transformer isolated, eliminating hum and buzz caused by ground loops. And with artists as diverse as Carlos Santana, Eric Clapton, Jeff Beck, Joe Perry and Metallica all using the SGI, you can rest assured the tone of your guitar will sound the way it should.

Using the Radial SGI in the studioThe SGI is the perfect interface for studio recording. Now, you can sit in the control room and play guitar and actually hear what is coming through the monitors while you play. Simply connect the guitar into the SGI-TX, run a balanced cable to the SGI-RX and crank to your hearts content!

• Studio Guitar Interface System
• Transformer isolated to eliminate noise
• Routes using standard balanced XLR cable
• Balanced line driver for guitars and bass
• Send signal over 100 meters (300 feet) without loss
• 100% discrete class-A with Drag ControlT
• Delivers pure sound without artefact

• 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: 112 dB
• Noise Floor: -102 dBu
• Maximum Input: +10 dBu
• Total Harmonic Distortion: 0.005% @ 1k
• Inter-Modulation Distortion: 0.04% @ 1k
• Input Impedance: Variable from 10k ohm ~ 1 megaohm