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Table of Contents
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Table of Contents
Related Manuals for NHT SW12
Summarization of Contents
Important Safety Instructions
General Safety Precautions
Covers reading instructions, water/heat avoidance, cord protection, and general usage.
Electrical Hazard Warnings
Alerts to risks of electric shock, uninsulated voltage, and improper plug use.
Servicing and Damage
Details conditions requiring qualified service and replacement part guidelines.
Background and Features
Product Background
Introduction to the NHT SW10 II and SW12 powered subwoofers.
Key Features List
Highlights line-level/speaker-level inputs, independent gain, phase, and low pass filter controls.
Placement Considerations
Guidance on positioning the subwoofer for optimal bass response and clarity.
Volume Control Setup
Instructions for setting subwoofer gain relative to main speakers for proper balance.
Boundary EQ Feature
Explains the Boundary EQ control for compensating room boundary effects on bass.
Subwoofer Controls and Tuning
Low Pass Filter Adjustment
Sets the upper-limit frequency the subwoofer reproduces, variable from 40Hz to 180Hz.
Subwoofer Phase Selector
Allows selection of 0° (normal) or 180° (reverse) phase for optimal bass blending.
Power Mode Operation
Automatic standby (AUTO) or always on (ON) modes for power management.
Placement and Boundary EQ Diagrams
Illustrates correlation between placement and Boundary EQ settings (Fig. 1).
Back Panel Overview and Connections
Rear Panel Control Descriptions
Details of Power Mode, indicators, Volume, filters, phase, and various input/output jacks.
LFE Connection Method
Primary connection method using the LFE output from an AV receiver to the subwoofer's LFE input.
Alternative Connection Methods
Line Level Connection
Connecting via receiver/preamp Pre-Out jacks to the subwoofer's Line Level Input.
Hi-Level Connection
Connecting speaker-level outputs from receiver/amp to the subwoofer's High-Level Input.
Fine Tuning Subwoofer Performance
Frequency Chart Explained
Defines audio frequency spectrum terms used for adjustments.
Subwoofer Tuning Flow Chart
Step-by-step guide to diagnose and correct bass response issues.
Operation, Maintenance, and Troubleshooting
Normal Operation Modes
Recommends leaving power on for Auto Mode; advises against extreme settings.
Maintenance and Fuse Replacement
Guidance on cleaning, changing line voltage, and replacing the fuse.
Troubleshooting Common Issues
Addresses power failures, LED indicators, and protect mode issues.
Glossary of Audio Terms
Technical Term Definitions
Alphabetical listing of terms related to audio, speakers, and electronics.
Specifications and Warranty
Product Technical Specifications
Details driver complement, response, sensitivity, impedance, power, dimensions, and finish.
Warranty and Service Information
Covers limited warranty terms, what's not covered, and how to obtain service.
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