AXTON A1390 - User Manual

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POWER AMPLIFIERS

Einbau- und Bedienungsanleitung

Installation & Operating Instructions

A1390

A2090

A2190

A490

A480-250

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Table of Contents

Questions and Answers

E
Erin ClarkAug 2, 2025
What to do if there is no music signal on loudspeakers from my AXTON A1390 Amplifier?
- M
  Michael NelsonAug 2, 2025
  If there is no music signal from your AXTON Amplifier loudspeakers, several issues could be the cause. First, check the +12V, GND/0V, and "Remote" line connections. A blown fuse on the amplifier or the main fuse on the car battery side could also be the problem, so replace them if necessary. Additionally, a short-circuit on any of the speaker outputs or DC voltage at the speaker outputs might be the cause, so address these issues. Overload or overheating can also cause this, so reduce the load or allow the amplifier to cool down.
E
Erin HartAug 9, 2025
Why is my AXTON A1390 Amplifier making a high-pitched buzzing sound?
- M
  Monica JohnstonAug 9, 2025
  A high-pitched buzzing sound in your AXTON Amplifier could be due to a bad ground (GND) contact of the amplifier or head unit. Check the ground connections to ensure they are properly connected. It could also be caused by insufficiently shielded RCA interconnects or bad RCA cable routing, leading to inductive interference. In this case, improving the shielding and routing of your RCA cables might resolve the issue.
R
Robin WilliamsAug 17, 2025
How to fix humming sound from AXTON A1390?
- R
  Ryan EstradaAug 17, 2025
  Humming from your AXTON Amplifier is often a sign of ground loop(s), which means there are multiple ground connections in your car audio installation. To resolve this, check the ground connections of all audio components to ensure there is only one ground connection point.
K
Kimberly KimAug 25, 2025
What to do if my AXTON Amplifier is making a crackling sound?
- B
  Brandon ZimmermanAug 25, 2025
  A crackling sound in your AXTON Amplifier could be due to insufficient interference elimination of the ignition circuitry with engine speed. Improving the interference elimination might resolve this issue.

Summary

AXTON Amplifier Introduction

AXTON Amplifier General Features

Lists key features including PWM MOSFET, A/B amplification technology, and protection circuitry.

AXTON A1390 Connections and Controls

AXTON A2090;A2190 Connections and Controls

AXTON A490 Connections and Controls

AXTON A480-250 Connections and Controls

Amplifier Location & Mounting

Wiring Tips

Connecting Procedures

Crossover Frequency Settings

Sensitivity Adjustments and Gain Matching

Troubleshooting Common Amplifier Issues

AXTON Amplifier Technical Specifications

AXTON Product Warranty Certificate

AXTON A1390 Specifications

General

Brand	AXTON
Model	A1390
Category	Amplifier
Language	English

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