Description
Allows your guitar signal to travel through 350′ of balanced cable to a distant amplifier. A transmit and receive module allows your guitar signal to travel through 350′ of balanced cable to a distant amplifier. The SGI is a unity gain device that features 100% discreet Class-A circuitry and transformer isolation to eliminate ground loops. It also has a Drag Control load correction circuit, DC connection for provided 15VDC supply, and ground lift. The SGI receive module features an XLR input and ground lift. Made from heavy-duty 14-gauge steel with internal I-beam frame and protective zone around switches and connectors. With the SGI, the guitarist can now play the roles of performer, engineer, and producer while saving immeasurable time during the recording process.












Andy B. –
Off stage amp, but no degradation of signalI play into a Vox AC15C1, and while its not a huge amp, it is super loud on the stage at my church. I was looking for a way to fix the constant battle that was waged between my amp & the house sound system, and bought the Radial SGI on the recommendation of a friend who said he fought the same battle – and won.Placed at the end of my signal chain, I run 12 gauge mic cables about 40′ to a room behind the stage where my amp now resides. From plugging straight into the amp to playing through the SGI, I notice no loss in signal at all. Simply put, the SGI does what I needed it to do, and it allows me to better control excessive volume on stage during worship experiences.
Taylor Clarke –
Radial SGI Studio Guitar InterfaceThese boxes are the best thing since the buffer was outfitted to boost pedal board signals!!!If you want loud amps, but are bad with sound people, these boxes are your thing.I guarantee that there will be no regret in buying these, you can’t go wrong.Think of it like putting your pedal board on top of your amp and plugging a tiny patch cable into your amp.That’s the distance of quarter inch noise / frequency loss you will experience (very minimal).******YES, patch cables, the cable to your guitar, true bypass vs buffered outputs are all variables in this, but it takes your pedal issues down a couple notches (with a good outlet to plug the power supply of the boxes into, and a solid XLR cable)GET THEM!! TOTALLY WORTH IT!!
MANdrew –
Fantastic Product!I use these all the time at the studio to have players tracking in the drum room or control room with their amps in another room. I’ve used pairs of these units and have never had an issue with any of them. Their build quality is fantastic too!
Amazon Customer –
Great ProductLove these things. I own two sets of these for running stereo or lending one out. The TX fits nice and snug strapped to the underside of my pt-3 pedalboard. The only complaint I have is that they are 15VDC which doesn’t work with the normal 9-12VDC outputs on my power supply. Luckily I could use the courtesy outlet on the Voodoo Labs pedalpower2 and strapped a mini extension cord to the bottom of my pedalboard.
Rafael Bittencourt –
GoodGood
Jerry N –
Just what I needed!Sends my signal to an amp in a room backstage, let’s me crank it and keep the tone dirty while eliminating stage noise and giving the FOH engineer complete control. Fantastic!
Ramon Correa –
Does exactly what it is intended to doAs a musician that needs to place guitar amp off stage, this is a must. It maintains tone regardless of the fact that I am far from the amp.
Phil Grabmiller –
Five StarsAwesome rig. Works great. Great for long runs of a guitar signal.