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TABLE OF CONTENTS
What’s in the Box � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Features � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Getting Started � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Hookup Diagrams � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
Rear Panel � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
Top Panel � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �7
Left and Right Panels � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
The Ampeg IR Loader Application � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �10
SGT-DI Technical Specifications � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �19
Block Diagram � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 20
Warranty and Support � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �21
Supplier’s Declaration of Conformity
47 CFR § 2.1077 Compliance Information
Unique Identifiers: Ampeg
®
SGT-DI™ Bass Preamp Pedal
Responsible Party - U.S. Contact Information:
Yamaha Guitar Group, Inc�
26580 Agoura Road
Calabasas, CA 91302-1921
(818) 575-3600
https://ampeg�com/
FCC Compliance Statement:
This device complies with Part 15 of the FCC Rules� Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation�
© 2023 Yamaha Guitar Group, Inc. All rights reserved.
Ampeg, the Ampeg logo, Heritage, Portaflex, SGT, Super Grit Technology, SGT-DI, SVT, Line 6, Helix, HX, POD,
and Metallurgy are trademarks or registered trademarks of Yamaha Guitar Group, Inc� in the U�S� and/or other
jurisdictions� Mac and macOS are trademarks of Apple Inc�, registered in the U�S� and other countries and regions�
Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries�
The Model and Serial numbers can be found on the product label� Please record these numbers below and retain this
document for your records�
Model Number: ________________________________
Serial Number: ________________________________
