SKU: JLA0100333700
UPC: 699440986472
MPN: 010-03337-00
The JL Audio MVi 4 Channel Marine Amplifier brings reference-grade audio performance to boats, yachts, and PWC installations where space is limited and environmental demands are high. Built around JL Audio's NexD2 second-generation Class D switching technology, this compact amplifier delivers 100 watts per channel at 2 ohms or 200 watts bridged per channel at 4 ohms. The integrated 24-bit/48 kHz digital signal processor eliminates the need for external processing equipment, making it an efficient choice for marine audio systems that need serious power without cabinet-sized hardware.
JL Audio engineered the MV400/4i around a triple-core AKM AK7738 DSP chip, enabling onboard equalization, time alignment, crossover tuning, and signal mixing—all configurable through the TüN Software app on PC, tablet, or smartphone. The DirectFET MOSFET output stage delivers low-noise operation with minimal distortion, rated below 1% THD at full power. Input flexibility spans 250 mV to 16 V on the preamp inputs, with speaker-level input capability for integration with factory head units. The cast alloy chassis features marine-grade powder coating and corrosion-resistant hardware rated to IPX2 when vertically mounted. Two pairs of preamp outputs allow expansion, and the amplifier networks with up to six MVi units via the optional MVi-HUB for larger multi-zone installations.
This amplifier fits installations where deck space carries a premium—center consoles, wakeboard towers, and helm compartments where traditional amplifiers won't fit. The frequency response of 12 Hz to 21 kHz covers the full audible spectrum for speakers and component systems alike. Pair it with quality marine-grade cabling using 4 AWG copper minimum for power runs, and protect the circuit with a 40-amp fuse. We stock this alongside JL Audio's full marine lineup, including speakers and source units designed to match.
The MV400/4i produces 100 watts per channel at 2 ohms or 75 watts per channel at 4 ohms when running all four channels. In bridged mode, it delivers 200 watts per channel at 4 ohms across two channels. All ratings are continuous power at 14.4 volts.
Configuration is handled through JL Audio's TüN Software, available for PC, tablet, or smartphone. The software connects wirelessly and provides control over equalization, time alignment, crossover settings, and input mixing—allowing tuning from the helm or any convenient location on the vessel.
The MV400/4i carries an IPX2 rating when mounted vertically with connections pointed downward. This protects against dripping water at angles up to 15 degrees. For exposed installations, position it under a console or in an enclosed compartment.
Yes, the MVi series supports networking up to six amplifiers through the optional MVi-HUB accessory. This allows centralized DSP control and configuration across multi-zone or high-power installations from a single interface.
JL Audio specifies 4 AWG copper wire minimum for power connections. The amplifier requires a 40-amp fuse using AFS, AGU, or MaxiFuse formats. Proper wire sizing prevents voltage drop and ensures the amplifier reaches its full rated output.
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