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General| Signal-to-Noise Ratio | 90dB |
|---|---|
| Bass Boost | 0-18dB |
| Phase Shift | 0° - 180° |
| Damping Factor | >100 |
| Input Impedance | 10k Ohms |
| Impedance | 2-4 Ohms |
Key questions to consider before installing the amplifier, covering future expansion, input types, component matching, and mounting location.
Proper grounding procedure to a clean vehicle chassis to avoid ignition noise.
Connecting the amplifier's main power directly to the battery with an inline fuse.
Connecting the remote turn-on lead from the stereo or accessory circuit to power the amplifier on/off.
Illustrations and identification of controls and connectors on the front panel for various amplifier models.
Illustrations and identification of power, speaker, and input/output connectors on the rear panel for various amplifier models.
Description of RCA input jacks for line-level signals and required input voltage.
Adjusting amplifier sensitivity to match the source unit's signal voltage.
Adjustable subsonic filter frequencies for different amplifier models to control low-frequency output.
Explanation of Full Pass, Low Pass (LPF), and High Pass (HPF) crossover switch and frequency controls.
Adjustable bass boost levels for enhancing low-frequency output.
Function of the remote gain control for subwoofer amplifier gain adjustment.
Meaning of the LED indicator colors (Green for normal, Red for shutdown) and their causes.
Description of auxiliary outputs for system expansion and linking amplifiers.
Instructions for connecting the ground terminal to the vehicle chassis.
Connection for the remote turn-on lead to activate the amplifier.
Connection for the main power wire to the positive terminal of the battery or isolated system battery.
Explanation of the purpose of fuses for protecting the amplifier from internal damage.
Connection points for subwoofers or speakers.
Wiring diagrams for mono channel system configurations for HTG137/HTG157 and HTG2100D models.
Wiring diagrams for 2-channel system configurations for HTG237/HTG257 models.
Wiring diagrams for 4-channel system configurations for HTG447 models.
Diagnosing and resolving issues related to no sound output, including power and speaker connections.
Troubleshooting steps for when the amplifier fails to power on, checking power and remote wires, and fuses.
Identifying and fixing issues where only one audio channel is producing sound.
Resolving problems where the amplifier turns off at medium or high volume, checking impedance and speaker load.
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