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Power Amplifier
Instruction Manual
To ensure maximum performance and safety,
please follow this manual. Please retain the
manual for future reference after installation
STEREO 2
STEREO 4
BASS 1

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Summarization of Contents

System Connections Overview
Ground Cable Setup
Proper grounding procedure for amplifier.
Remote Turn On Connection
Connecting the remote turn-on lead for amplifier activation.
RCA Cable Routing
Routing RCA cables to avoid interference.
Power Cable Installation
Selecting and installing the power cable with fuse.
BlackBox Stereo 2 Controls
High Level Input
Using speaker wires when RCA outputs are unavailable.
Low Level Input / Output
Connecting RCA cables for audio input/output.
Gain Control
Adjusting input signal level to match the source.
Bass Boost Switch
Enhancing bass frequencies at 45 Hz.
Low Pass Crossover Control
Setting the frequency for low-pass filtering.
Crossover Control Switch
Selecting filter mode (LPF, HPF, Full).
High Pass Crossover Control
Setting the frequency for high-pass filtering.
BlackBox Stereo 2 Continued
Gain Remote Input Jack
Connecting a remote bass controller.
Indicator LEDs
Understanding operational status lights.
Power Connections
Details on connecting power supply.
Fuses
Fuse rating for replacement.
Speaker Terminal Output
Connecting speakers to the amplifier.
BlackBox Stereo 4 Controls
Low Level Input
Connecting RCA outputs from the headunit.
High Level Input
Using speaker-level input when RCA is unavailable.
Front Gain Control
Matching input signal level for front channels.
Front Crossover Control
Setting crossover for front channels.
Front Bass Boost Switch
Boosting bass frequencies for front channels.
Rear Gain Control
Matching input signal level for rear channels.
BlackBox Stereo 4 Continued
Rear Bass Boost Switch
Boosting bass frequencies for rear channels.
Rear Crossover Control
Setting crossover for rear channels.
Rear Gain Remote Input Jack
Connecting a remote bass controller for rear channels.
Indicator LEDs
Understanding operational status lights.
Power Connections
Details on connecting power supply.
Fuses
Fuse rating for replacement.
Speaker Terminal Output
Connecting speakers to the amplifier.
Black Box BASS 1 Controls
Low Level Input / Output
Connecting RCA outputs from the headunit.
Gain Control
Matching input signal level to the amplifier.
Low Pass Filter Control
Setting the low pass filter frequency for subwoofers.
Phase Control
Adjusting subwoofer phase for optimal sound.
Subsonic Filter Control
Filtering out very low frequencies to protect subwoofer.
Subsonic Filter Switch
Enabling or disabling the subsonic filter.
Bass Boost Switch
Boosting bass frequencies for subwoofers.
Black Box BASS 1 Continued
Bass Remote Input Jack
Connecting a remote bass controller.
Indicator LEDs
Understanding operational status lights.
Fuses
Fuse rating for replacement.
Speaker Terminal Output
Connecting speakers to the amplifier.
Setup Procedures
Gain Control Setup
Routine for setting amplifier gain to match source.
Crossover Setting
Guidance on setting crossover frequencies for different speakers.
Troubleshooting Guide
Amplifier Will Not Power Up
Steps to diagnose power issues.
Protection LED Illuminates
Identifying and resolving protection mode issues.
Amplifier Gets Very Hot
Troubleshooting overheating amplifier.
Blown Fuse(s)
Checking and replacing fuses.
Distorted Sound
Diagnosing and fixing distorted audio output.
Limited Warranty Information
Warranty Validation
Steps to validate the 12-month warranty.
Technical Enquiries and Support
Contact information for technical help.

Table of Contents