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Coustic 321QE - User Manual

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321QE & 481QE AMPLIFIER OWNER’S MANUAL
(MODE D’EMPLOI)
877 COUSTIC COUSTIC.COM
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Summary

Controls, Indicators, and Terminals

Installation

Adjustments

Troubleshooting

Troubleshooting: No Power

Diagnosing and resolving issues when the amplifier does not turn on.

Troubleshooting: Power with Protection Indicator

Addressing issues where the amplifier has power but the protection indicator is on.

Troubleshooting: Power, No Sound, Red Indicator

Resolving no sound issues when the red power indicator is illuminated.

Troubleshooting: Frequent Amplifier Shut Down

Addressing the issue of the amplifier repeatedly shutting down automatically.

Troubleshooting: Motorboating Issue

Resolving the 'motorboating' symptom where the power indicator cycles.

Troubleshooting: Engine Whining Noise

Diagnosing and eliminating engine-related whining noise in the audio system.

Troubleshooting: Constant Whining Noise

Resolving constant whining noise, often related to ground loops.

Troubleshooting: Radiated Noise

Diagnosing and eliminating radiated noise, particularly on FM radio.

Specifications

Coustic 321QE Specifications

General IconGeneral
BrandCoustic
Model321QE
CategoryCar Amplifier
LanguageEnglish

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