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Impact Car Audio HC 550.2 - User Manual

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Owner manual
HC Series ampliers
HC 75.2 - HC 150.2 - HC 250.2 - HC 550.2
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Summary

INTRODUCTION

Hearing Safety Warning

Advises users to protect their hearing from high sound pressure levels to prevent damage.

CONTROL PANELS

RCA Line Input Jacks

Connects left and right audio signals to the amplifier using RCA plugs.

Subsonic Filter Frequency Control

Adjusts the crossover frequency for the subsonic filter from 10 Hz to 150 Hz.

Low Pass Filter Frequency Control

Sets the crossover frequency for the low pass output from 40 Hz to 4,000 Hz.

Stereo;Mono Switch

Selects between stereo (12dB/Oct) and mono (24dB/Oct) low pass signal modes.

Amplifier X-Over Select Switch

Chooses between low-pass, full-range, or high-pass crossover modes for the amplifier.

High Pass Filter Frequency Control

Adjusts the crossover frequency for the high pass output from 10 Hz to 4,000 Hz.

Input Level Control

Adjusts the input signal level from 200 mV to 9 V for optimal performance.

Bass EQ Control

Adjusts the bass response at 45 Hz, offering an increase of +0 to +18 dB.

Status Indicator LEDs

Describes the function of the green POWER and red PROTECTION LEDs.

RCA Line Output Jacks

Provides line output signal, automatically set by the crossover switch position.

Bass Boost Remote Control Jack

Connects an optional remote controller for adjusting bass boost while driving.

INSTALLATION

Installation Precautions

Safety guidelines and preparation steps before installing the amplifier in a vehicle.

Amplifier Mounting and Wiring

Instructions for physically mounting the amplifier and connecting power, ground, and remote wires.

WIRING SYSTEM Nr. 1

WIRING SYSTEM Nr. 2

WIRING SYSTEM Nr. 3

Amplifier A Connections and Settings

Details for connecting Amplifier A to the mono subwoofer and its specific settings.

Amplifier B Connections and Settings

Details for connecting Amplifier B to Amplifier A's line out and front speakers, plus its settings.

Mach Impact HC amplifiers to Impact subwoofer

Subwoofer 67 Serie Wiring

Diagram for wiring a 2 Ohm subwoofer system using the 67 series subwoofer.

Subwoofer 57 Serie Wiring

Diagram for wiring a 2 Ohm subwoofer system using the 57 series subwoofer.

Subwoofer 37-47 Serie Wiring

Diagram for wiring 2 Ohm subwoofer systems using the 37-47 series subwoofers.

Subwoofer 27 Serie Wiring

Diagram for wiring 2 Ohm subwoofer systems using the 27 series subwoofers.

TROUBLESHOOTING

Amplifier Will Not Power Up

Checks for power, fuse, and remote wire connections if the amplifier does not turn on.

Protection Mode and Overheating

Diagnosing issues related to the amplifier entering protection mode or overheating.

No Sound Issues

Troubleshooting steps for when no audio output is heard from the speakers.

Weak Output

Steps to resolve low audio output levels from the amplifier.

Single Channel Operation

Diagnosing why only one speaker channel is producing sound.

Hiss Noise

Identifying and resolving unwanted hiss noise in the audio output.

Alternator Whine in Speakers

Troubleshooting engine noise (alternator whine) present in the speaker output.

Impact Car Audio HC 550.2 Specifications

General IconGeneral
Channels2
Signal-to-Noise Ratio>90dB
Low Pass Filter50Hz - 250Hz
Input Sensitivity0.2V - 6V
Bass Boost0dB - 12dB

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