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Description

Memphis MX400.4

The MX400.4 is a 400-watt 4-channel Class-D powersports amplifier designed for UTVs, ATVs, and other outdoor vehicles. It features a compact design with a conformal-coated board to resist moisture and corrosion. The amplifier is IP66-rated for water and element resistance and includes top-mounted controls with a water-resistant cover. Sealed connectors ensure reliable weatherproof connections, and it offers high- and low-level inputs along with a 2/4-input switch for flexible channel operation.


Features

Feature Details
Design Compact
Circuit Board Conformal coated
Water & Element Resistance IP66 rated
Controls Top mounted
Crossover MX400.4 fixed 80Hz
Connectors Sealed
Inputs High/Low input
Input Switch 2/4 Input Switch (MX800.4, MX400.4)

Specifications

Specification Details
RMS Power 4Ω 75 × 4 W
RMS Power 2Ω 100 × 4 W
RMS Power 1Ω
Bridged/Mono Power 4Ω 200 × 2 W
THD% 4Ω <1%
Frequency Response 10 Hz – 20 kHz
Dimensions (L × W × H) 8.75 × 3.25 × 1.75 in
Input Range 300 mV – 9.7 V
Amp Kit 8GK

 

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Questions and Answers

Q1: What is the RMS power output of the MX400.4?

A1: 75 W × 4 at 4 Ω and 100 W × 4 at 2 Ω.

Q2: Can it be bridged?

A2: Yes  bridged/mono power is 200 W × 2 at 4 Ω.

Q3: Is it waterproof?

A3: Yes  it is IP66-rated for water and element resistance.

Q4: What frequency range does it support?

A4: 10 Hz – 20 kHz.

Q5: What wiring kit is recommended?

A5: The 8GKIT is recommended for safe and stable power delivery.


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