
Compact Power for Any Ride
The Memphis Audio MX400.4 4-Channel Powersports Amplifier delivers 400 watts of high-quality sound in a compact, rugged housing. Ideal for motorcycles, UTVs, ATVs, and marine vehicles, this amp offers big performance in a small footprint, perfect for tight installations.
Built to Endure Extreme Conditions
Designed for the toughest environments, the MX400.4 features an IP66-rated housing that resists water, dust, and dirt. A conformal-coated circuit board protects against moisture and corrosion, while sealed connections ensure consistent, reliable performance wherever you ride.
Simplified Setup and Performance
The MX400.4’s top-mounted controls make tuning easy, even in compact installs. With a fixed 80Hz crossover and balanced sound delivery, this amplifier provides clean mids and highs for a powerful and precise audio experience that cuts through wind and engine noise.
Highlights
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4-channel full-range Class D powersports amplifier
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Total Power Output: 400 watts
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Compact design for motorcycles, UTVs, ATVs, and marine setups
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IP66-rated for water and element resistance
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Conformal-coated circuit board for protection against moisture
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Top-mounted controls for easy access and tuning
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Fixed 80Hz crossover for optimized sound performance
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Rugged construction for durability in extreme conditions
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Efficient design minimizes heat and power draw
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Perfect for compact, weatherproof audio installations
Package Contains
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Memphis Audio MX400.4 4-Channel Powersports Amplifier
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Mounting hardware kit
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Wiring harness
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User manual and installation guide
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Warranty information