SKU: MA800.4

800-Watt RMS Full Range Class D 4-Channel Marine Amplifier

Availability: In stock

$779.95 MSRP

$699.95

Massive Power, Marine-Ready Design

Full-range power built for the marine environment. The MA800.4 delivers 200 watts RMS per channel with Class D efficiency, precise tuning control, and durable components made to withstand water, salt, and vibration. Whether you're upgrading your boat's factory system or building a full custom setup, this amplifier brings reliable, high-quality sound to every corner.

Ask an expert Find a location

Big Power in a Compact Design

The MA800.4 amplifier delivers 200 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. Its surface mount component design ensures solid, vibration-resistant connections, helping maintain audio performance over time, even in rough water conditions.

Control and Customization at your Fingertips

With the MA800.4, 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.

Marine-Built from the Inside Out

With a conformal-coated circuit board and corrosion-resistant stainless steel hardware, the MA800.4 is built to handle harsh marine conditions. Moisture, salt, and spray are kept at bay, so your system keeps performing no matter where the water takes you.

Dimensions & Details

Dimensions

A - Length:

9 ³⁄₄” (247mm)
B - Width:

7” (176mm)
C - Depth:

2” (50mm)
Weight:

5.69Lbs (2.58Kg)

Features

Conformal Coated Circuit Board for Water & Salt Resistance
Stainless Steel Hardware to Prevent Corrosion
800 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: 60A - 80A

CTA-2006-D Continuous Power Output:

200W RMS x 4 @ 2Ω, 1kHz, ≤1% THD+N

100W RMS x 4 @ 4Ω, 1kHz, ≤1% THD+N

400W RMS x 2 Bridged @ 4Ω, 1kHz, ≤1% THD+N

List of CTA-2006-D Certified 12 Volt Amplifiers

Videos

SPECIFICATIONS

Description: 4-Channel
Topology: Full Range Class D
4Ω RMS Power Output: 100W x 4 Channels
2Ω RMS Power Output: 200W x 4 Channels
4Ω RMS Bridged Power Output: 400W x 2 Channels
THD: < 0.2%
Signal to Noise Ratio: > 98dB
Frequency Response: 20Hz - 20KHz
Crossover: 40Hz - 400Hz
Maximum Input Signal: 10V

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.

About Returns

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.

About Our Warranty