NHT SA-3 User Manual
Thank you for your purchase of the NHT SA-3 monaural subwoofer amplifier. Please take a few
moments to read through this Owner’s Manual prior to installing your new amplifier and/or subwoofer
system. The information provided can help you to obtain maximum performance from your audio
system. For your convenience, a glossary at the end of this manual explains some technical terms.
If you have questions or require assistance at any time during the installation or operation of your new
amplifier/powered subwoofer system, please call your local NHT dealer or our Toll-Free Customer
Service Hotline at:
moments to read through this Owner’s Manual prior to installing your new amplifier and/or subwoofer
system. The information provided can help you to obtain maximum performance from your audio
system. For your convenience, a glossary at the end of this manual explains some technical terms.
If you have questions or require assistance at any time during the installation or operation of your new
amplifier/powered subwoofer system, please call your local NHT dealer or our Toll-Free Customer
Service Hotline at:
1-800-NHT 9993
Please retain the SA-3 packaging to protect the amplifier in the event that you move or transport it.
1
Table of Contents
I. Specifications
Placement
Front and Back Panel Diagrams
General Connections
Low-Pass Filter
High-Pass Filter
Subwoofer Phase
Subwoofer Volume Control
Front and Back Panel Diagrams
General Connections
Low-Pass Filter
High-Pass Filter
Subwoofer Phase
Subwoofer Volume Control
II. The SA-3 and SW3S: The SW3P Powered Subwoofer System
Connection Methods
Fine Tuning the Subwoofer
Fine Tuning the Subwoofer
Ill. The SA-3 and Biamplification
Connection Methods
Recommended Biamplification Settings
Bass Tuning Methods
Recommended Biamplification Settings
Bass Tuning Methods
lV. Operation
Maintenance
Changing the Line Voltage Setting
Changing the Fuse
Changing the Line Voltage Setting
Changing the Fuse
Troubleshooting
Glossary of Terms
V. Warranty Information