MTX XTHUNDER User Manual (English)

Questions and Answers:

H
hillbarbaraAug 1, 2025
What to do if the MTX Amplifier power LED is on but there is no output?
- A
  Amy FarleyAug 1, 2025
  If the power LED is on but there's no output from your MTX Amplifier, first, check if the volume on your source unit is turned down; if so, increase it. Next, ensure that all speaker connections are properly made. Also, verify that the gain control on the amplifier isn't set too low; if it is, turn it up. If you're using signal processing units, make sure they're powered on. Lastly, check your speakers; if they're all blown, replace them.
W
William May MDAug 6, 2025
Why is my MTX XTHUNDER blowing fuses?
- M
  Mr. Patrick MooreAug 6, 2025
  If your MTX Amplifier is blowing fuses, it could be due to excessive output levels. Try lowering the volume. If the issue persists, the amplifier might be defective, and it should be returned for service.
G
Gregory RodriguezAug 11, 2025
How to fix a distorted output on my MTX XTHUNDER?
- R
  Rhonda JohnsonAug 11, 2025
  If the output from your MTX Amplifier is distorted, it might be because the head unit volume is set too high. Try lowering it. Alternatively, the amplifier gain might be set too high; if so, lower the amplifier gain.
J
Jason CervantesAug 16, 2025
Why is the balance reversed on my MTX XTHUNDER?
- J
  John CollinsAug 16, 2025
  If you notice the balance is reversed on your MTX Amplifier, it's likely that the speaker wires for the left and right channels are reversed. Correct the speaker wire orientation. Another possible cause is reversed RCA inputs; in this case, reverse the RCA inputs.
J
James NewtonAug 20, 2025
How to troubleshoot no LED indication on MTX Amplifier?
- A
  Andrea AyalaAug 21, 2025
  If there is no LED indication on your MTX Amplifier, it could be due to several reasons. First, check if there is +12V at the remote connection and power connection; if not, supply +12V to the terminal. Next, verify the ground connection to ensure it's sufficient. Lastly, check if the power fuse is blown and replace it if necessary.
J
James JonesAug 26, 2025
Why is the bass weak on my MTX XTHUNDER Amplifier?
- S
  Sarah CruzAug 26, 2025
  If the bass is weak with your MTX Amplifier, it could be because the speakers are wired out of phase. Ensure you wire the speakers with the correct phase. Another reason might be that you are not using MTX subwoofers.

MTX XTHUNDER Specifications

General

Series	XTHUNDER
RMS Power at 2 Ohms	1000W
RMS Power at 1 Ohm	1500W
Input Sensitivity	6V
Operating Voltage	16V

Summary

Introduction and Features

Introduction

Provides a welcome message and highlights the amplifier's performance and enjoyment.

Features

Lists key design aspects and technical highlights of the amplifier, such as compact size and protection features.

Controls and Panel Layout

Control Functions

Details the purpose and operation of each control knob and terminal on the amplifier, including power, input, and filter settings.

Panel Layouts

Visual guide to the connectors and controls on the amplifier's panels for specific models like XTHUNDER125.4.

XTHUNDER800.5 Amplifier Panel Layout

Details the layout and labeling of the XTHUNDER800.5 5-Channel amplifier.

XTHUNDER1200.1 / XTHUNDER1500.1 Mono Block Amplifier Panel Layout

Details the layout of mono block amplifiers XTHUNDER1200.1 and XTHUNDER1500.1.

Installation and Troubleshooting

Installation and Mounting

Provides step-by-step instructions for safely installing the amplifier in a vehicle, including power and ground connections.

Troubleshooting

Offers solutions for common problems such as no LED indication, distorted output, and blowing fuses.

Specifications and Wiring Diagrams

Specifications

Compares technical specifications like RMS power, frequency response, and minimum load across different XTHUNDER amplifier models.

Mono Block Amplifier Wiring (Single Subwoofer Load)

Illustrates the wiring connections for mono block amplifiers with a single subwoofer load.

Mono Block Amplifier Wiring (Multi-Subwoofer Load)

Illustrates the wiring connections for mono block amplifiers with multiple subwoofer loads, noting minimum load ratings.

XTHUNDER125.4 Amplifier Wiring (4-Channel Mode)

Shows the wiring configuration for the XTHUNDER125.4 amplifier when operating in 4-channel mode.

XTHUNDER125.4 Amplifier Wiring (3-Channel Mode)

Shows the wiring configuration for the XTHUNDER125.4 amplifier when operating in 3-channel mode.

XTHUNDER800.5 Amplifier Wiring (5-Channel Mode)

Illustrates the wiring connections for the XTHUNDER800.5 amplifier when operating in 5-channel mode.

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