MTX Marine Audio 400-Watt 4-Channel & 750-Watt Mono Block Marine Amplifier Bundle ( MA400.4, MA750.1 )

Included in this kit

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This bundle includes a MTX MA400.4 400-Watt RMS Full Range Class D 4-Channel Marine Amplifier, and a MTX MA750.1 750-Watt RMS 1Ω Mono Block Class D Marine Amplifier.

1x MTX MA400.4 400-Watt RMS Full Range Class D 4-Channel Marine Amplifier - (MA400.4)

Reliable full-range power in a marine-ready design. The MA400.4 from MTX delivers 100 watts RMS per channel with clean, balanced output and Class D efficiency. Built to perform in tough marine conditions, it features conformal coating, stainless steel hardware, and the same advanced protection and tuning controls you expect from MTX.

Big Power in a Compact Design
The MA400.4 delivers 100 watts RMS per channel at 2Ω, pushing crisp, distortion-free sound through every speaker in your setup. Its compact footprint makes it easy to install without sacrificing performance. Each amp includes a Dyno Power Rating Certificate, confirming that you’re getting real, verified power.

Features
Conformal Coated Circuit Board for Water & Salt Resistance
Stainless Steel Hardware to Prevent Corrosion
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

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

Dimensions Length: 6 ³⁄₄” (171mm) Width: 7” (178mm) Depth: 2" (51mm) Weight: 4.88Lbs (2.21Kg)

1x MTX MA750.1 750-Watt RMS 1Ω Mono Block Class D Marine Amplifier - (MA750.1)

Compact, powerful, and built for marine performance. The MA750.1 delivers 750 watts RMS at 1Ω with Class D efficiency and full-range bass response. Designed to withstand the harsh marine environment, it features conformal coating, stainless steel hardware, advanced protection circuitry, and a remote bass control for total system flexibility.

Maximum Output, Minimal Space
The MA750.1 amplifier outputs 750 watts RMS at 1Ω, giving your system clear, deep, and powerful bass in a stylish compact design. The MA750.1 integrates seamlessly into most watercraft, making it an ideal choice for tight spaces without compromising sound quality. The Dyno Certificate included will ensure that your amplifier potential exceeds the rated amount and gives you the power you deserve.

Features
Conformal Coated Circuit Board for Water & Salt Resistance
Stainless Steel Hardware to Prevent Corrosion
750 Watts RMS Power Output at 1Ω
External Bass Control Remote
High-Quality Tiffany-Style RCA Input
Mono Block Class-D Circuit Design
10V High-Level Audio Input Compatibility
Clip Detection Light for Tuning Optimization
Power and Protection LED Indicator Light
Surface Mount Component Technology
Direct Insert Power and Speaker Terminals
Thermal, Short, and Over/Under Voltage Protection
Dyno Power Rating Certificate

SPECIFICATIONS
Description: Mono Block
Topology: Class D
4Ω RMS Power Output: 250W x 1 Channel
2Ω RMS Power Output: 500W x 1 Channel
1Ω RMS Power Output: 750W x 1 Channel
THD: < 0.1%
Signal to Noise Ratio: > 100dB
Frequency Response: 20Hz - 250Hz
Crossover: 50Hz - 250Hz
Subsonic Filter: 10Hz - 55Hz
Maximum Input Signal: 10V

Dimensions
Length: 6 ³⁄₄” (171mm)
Width: 7” (178mm)
Depth: 2" (51mm)

Weight: 4.88Lbs (2.21Kg)