SKU: TH400.4

THUNDER 400-Watt RMS Full Range Class D 4-Channel Amplifier

Availability: Out of stock

$369.95 MSRP

$349.95

Powerful, Full-Range Sound in Every Drive

Experience full-range power with the TH400.4 four-channel amplifier from MTX Audio’s Thunder Series. This compact yet powerful amp delivers balanced, high-quality sound across every speaker, with features like Class-D efficiency, adjustable controls, and built-in protection monitoring—perfect for audiophiles seeking immersive audio on the road.

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Big Power in a Compact Design

The TH400.4 Thunder amplifier delivers 100 watts RMS per channel at 2Ω, powering each speaker with precise, distortion-free sound. Its compact design makes it easy to install in nearly any vehicle, bringing clean, full-range audio to every seat without taking up valuable space. Each amplifier is accompanied by a Dyno Certificate, showcasing its ability to deliver headroom and exceed its rated power output, giving you the power and confidence your system deserves.

High Efficiency, Consistant Performance

Class-D technology ensures high efficiency and low heat, giving you consistent performance even at high output levels. Designed with a durable surface mount build, the TH400.4 stands up to vibration and road conditions, keeping your music smooth and powerful mile after mile.

Control and Customization at your Fingertips

With the TH400.4, you get total control over your sound. Variable crossover and gain controls let you adjust the output to perfectly match your audio preferences, whether you’re enhancing the highs, mids, or lows. Hidden controls under a sleek panel cover keep your setup looking refined and uncluttered.

Protection and Piece of Mind

The TH400.4 is built to protect with an LED power and protection indicator, alerting you to any issues with voltage or overheating. From city streets to long highway drives, this amplifier provides reliable performance with safeguards to keep your system running smoothly.

Dimensions & Details

Dimensions

A - Length:

6 ³⁄₄” (171mm)
B - Width:

7” (178mm)
C - Depth:

2" (51mm)
Weight:

4.88Lbs (2.21Kg)

Features

400 Watts RMS Power Output
Reliable Full-Range Class-D Circuit Design
Compact Size for Flexible Installation
10V High-Level Audio Input Compatibility
High-Quality Tiffany-Style RCA Input
Power and Protection LED Indicator Light
Surface Mount Component Technology
Direct Insert Power and Speaker Terminals
Thermal, Short, and Over/Under Voltage Protection
Clip Detection Light for Tuning Optimization
Dyno Power Rating Certificate

Ratings

CEA2006D compliant
RECOMMENDED FUSE RATING: 40A - 60A

SPECIFICATIONS

Description: 4-Channel
Topology: Full Range Class D
4Ω RMS Power Output: 50W x 4 Channels
2Ω RMS Power Output: 100W x 4 Channels
4Ω RMS Bridged Power Output : 200W x 2 Channels
THD: < 0.1%
Signal to Noise Ratio: > 98dB
Frequency Response: 20Hz - 20KHz
Crossover: 40Hz - 400Hz
Maximum Input Signal: 10V
Warranty Period: 24 months from date of purchase

Downloads

Owners Manual - TH Amp Manual

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Returns & Warranty

30-Day Money-Back Guarantee

At MTX Audio, we are serious about sound®. Therefore, if you are not "blown away" with your purchase, for any reason, you can return any items purchased directly from MTX.com that are complete and like new within 30 days. Products purchased from authorized MTX retailers must be returned through that same retailer. Products purchased through non-authorized MTX retailers may not be returned.

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Warranty Information

MTX products purchased in the USA from an authorized MTX dealer are guaranteed against defects in material and workmanship for the period of time specified below, the warranty period begins the day the product is purchased by the end user. This warranty is limited to the original retail purchaser of product and extends only to products purchased from authorized MTX resellers. Product found to be defective during that period will be repaired or replaced by MTX at no charge.

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