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Coustic & 480QE User Manual

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Owner’s Manual
for 320QE, & 480QE
Four Channel Power Amplifiers
www.coustic.com
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Coustic & 480QE Specifications

General IconGeneral
BrandCoustic
Model& 480QE
CategoryAmplifier
LanguageEnglish

Summary

Features of the Coustic QE Series Amplifier

Multi-Function / Multi-Channel Circuit Design

The 4-channel amplifier can be configured for 4, 3, or 2-channel operation with built-in filters.

Built-in Electronic Crossover

Features continuously adjustable 18 dB per octave high-pass/low-pass filters for fine-tuning.

Protection Systems

Includes over-current, short circuit, and DC offset protection with automatic shutdown.

Triple Darlington Output Stage

Utilizes advanced audio circuitry for optimal operation and audio quality.

Line Outputs

Provides full-range line outputs for system expansion or adding another amplifier.

Wide Range Input Sensitivity

Adjustable input sensitivity from 100 mV to 5.0 volts for source unit matching.

High/Low Impedance Input

Compatible with floating or common ground car stereos, and aftermarket units.

Stable into 2-Ohm Loads

Maintains stability even in reactive low impedance environments.

Adjustable Bass Boost

Enhances bass performance with a continuously variable boost up to 18 dB.

Remote Subwoofer Level Control

Port for optional remote control to adjust subwoofer level in a moving vehicle.

Controls, Indicators, and Terminals

Front Panel Controls and Terminals

Details of switches, knobs, and input/output jacks on the amplifier's front panel.

Rear Panel Terminals and Indicators

Information on power input, ground, remote, fuse, and speaker output terminals.

System Configuration and Setup

Built-in Asymmetrical Electronic Crossovers

Explains the advantages and usage of the amplifier's 18 dB per octave electronic crossovers.

Bi-Amplification

Describes setting up a bi-amplified system using the amplifier's capabilities.

3 Channel Configuration

Guidance on configuring the amplifier for quasi 3-channel operation.

Multi-Function Protection Indicator

Explains the meaning of the red protect indicator and troubleshooting.

Speaker Impedance

Recommendations for speaker loads in stereo and bridged mono modes.

Power Cables and Circuit Protection

Guidance on using appropriate power cables and installing circuit breakers/fuses.

Special Precautions and Grounding

Important safety, wiring, and grounding system considerations for installation.

Installation Guidelines

Location and Ventilation

Recommendations for amplifier placement to ensure adequate heat dissipation.

Mounting Procedures

Step-by-step instructions for securely mounting the amplifier.

Wiring Layout and Connections

Guidance on routing audio and power cables, and making RCA/speaker connections.

Speaker and Power Connections

Detailed instructions for connecting speakers and the amplifier to the battery.

Remote Control and Optional Connections

Instructions for connecting the remote turn-on and optional subwoofer level control.

Final System Check and Adjustments

Input Sensitivity Adjustment

Procedure for matching source unit output to amplifier input for optimal sound.

Crossover Selection and Frequency

How to select filter modes (HPF, LPF, OFF) and adjust crossover frequencies.

Bass Boost Control Adjustment

Guidance on using the Bass Boost control for enhanced bass performance.

Setting Up Remote Subwoofer Control

Instructions for setting up the optional RS remote subwoofer control.

Trouble-Shooting Section

No Power or Sound Issues

Diagnosing and resolving problems related to power, sound, and protection indicators.

Sound Quality and Noise Issues

Troubleshooting common audio problems like no sound from one side or system noise.

Specifications and Limited Warranty

Amplifier Specifications

Technical details including rated power, frequency response, and dimensions.

Limited Warranty Information

Details of the warranty coverage, exclusions, and consumer rights.

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