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Radial SGI Instrument Line Driver System for Guitar and Bass , $349.99 - Add to Cart Skip to Product Information

Radial SGI Instrument Line Driver System for Guitar and Bass

Instrument Line Driver System with SGI-RX Receiver and SGI-TX Transmitter
Be the first to review Item ID: SGITXRX
Radial SGI Instrument Line Driver System for Guitar and Bass
Radial SGI Instrument Line Driver System for Guitar and Bass

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Radial SGI Instrument Line Driver System for Guitar and Bass
In Stock!

Superior Noise-free Signal Transmission Up to 300 Feet

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Our Product Research Team

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Ask any of Sweetwater’s seasoned stage pros, and they’ll be quick to tell you how long 1/4-inch cable runs on the stage or in the studio can quickly sap your signal’s high end and introduce hum, hiss, and buzz. Thankfully, Radial’s SGI (Studio Guitar Interface) instrument line driver allows you to take any unbalanced instrument signal and drive it up to 300 feet with pristine clarity and zero unwanted noise. This set consists of both the transmitter (SGI-TX) and the receiver (SGI-RX), with each device boasting premium Jensen transformers for optimal sonic performance. What’s more, the SGI-TX comes equipped with a handy Drag control, giving you the power to dial in the proper load for your guitar’s pickups. The SGI-RX also features a Ground Lift button to cut out ground-related hiss and hum. Finally, while both the SGI-RX and the SGI-TX can be powered via their included 15-volt power supply, this combo has been updated to accommodate the power from scores of pedalboard-standard power supplies. Whether you’re tracking in the control room or routing your signal to a far-off backline, Radial’s SGI system ensures your instrument signal always performs to the highest level possible.

Fueled by top-quality Jensen transformers

Boasting premium-quality components from stem to stern, both the SGI-TX and the SGI-RX leverage top-class Jensen transformers. These transformers are a key component of the SGI ecosystem, converting your signal at both the beginning and end of the system and defeating hum before it can even begin. Furthermore, these industry-leading transformers ensure a wide and flat frequency response with diminished noise and distortion, superior dynamic range, and an optimized signal-to-noise ratio.

Radial SGI Features:

  • Instrument line driver system that allows you to take any unbalanced 1/4-in. instrument signal and drive it up to 300 ft. via balanced XLR
  • Bundle includes the SGI-TX transmitter and the SGI-RX receiver
  • Defeats the diminished top-end detail and noise often introduced by long 1/4-in. cable runs
  • Both the transmitter and the receiver boast premium Jensen transformers to send your signal with a wide, flat frequency response, reduced noise, enhanced dynamic range, and an optimized signal-to-noise ratio
  • SGI-TX features a Drag control that allows you to dial in the optimal load for your guitar’s pickups
  • SGI-RX comes equipped with a Ground Lift button to cut out ground-related noise
  • Perfect for tracking guitar parts in the control room or routing your signal to a far-off backline when you’re performing
  • Includes a 15V power supply, and the system has been updated to accept most pedalboard-standard power supplies

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.