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Lists the subwoofer models this manual applies to.
Describes the function of each control on the subwoofer's amplifier.
Explains how to connect the subwoofer using low-level or high-level inputs.
Step-by-step guide for powering on and setting controls for optimal sound.
Recommendations for optimal subwoofer placement and acoustic considerations.
Guidelines for cleaning and maintaining the subwoofer cabinet and finish.
Advice on identifying and resolving acoustic feedback issues.
Explanation of the circuit designed to protect against overheating.
Details on the power supply's filtering and voltage stabilization.
Explanation of the circuit that prevents DC voltage from reaching the woofer.
Analysis of the signal flow for low-level audio inputs through filters.
Analysis of the signal flow for high-level audio inputs.
Visual diagrams illustrating signal and power pathways within the unit.
In-depth explanation of the servo feedback mechanism and velocity bridge.
How the servo system influences and shapes the audio frequency response.
Steps for diagnosing issues with the unit's relay.
Troubleshooting steps for absence of sound or distorted audio playback.
Procedures for identifying and fixing issues causing blown fuses.
Recommended final checks to perform during troubleshooting.
Diagram showing component placement on the main amplifier board.
Diagram showing component placement on the filter board.
A flowchart for diagnosing and resolving power supply failures.
A flowchart for diagnosing and resolving signal path issues.
Detailed lists of components for circuit boards, including resistors, capacitors, ICs, transistors.
Lists of wires, screws, nuts, washers, and connectors used in the unit.
Lists for transformer, switches, and other parts not mounted on PCBs.
Specific part numbers for semiconductors like transistors, diodes, and ICs.
Diagrams showing pin configurations for operational amplifiers.
Diagrams showing pin configurations for various transistors.
The complete circuit diagram for the amplifier and signal processing.
Detailed instructions for safely packaging the subwoofer for shipping.
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General